diff options
197 files changed, 1380 insertions, 6420 deletions
diff --git a/src/doc/trpl/traits.md b/src/doc/trpl/traits.md index 7330e42ccf6..3e77d3c603b 100644 --- a/src/doc/trpl/traits.md +++ b/src/doc/trpl/traits.md @@ -336,7 +336,7 @@ This shows off the additional feature of `where` clauses: they allow bounds where the left-hand side is an arbitrary type (`i32` in this case), not just a plain type parameter (like `T`). -# Default methods +## Default methods There’s one last feature of traits we should cover: default methods. It’s easiest just to show an example: diff --git a/src/libcollections/bit.rs b/src/libcollections/bit.rs index a72f628e10d..d9151298a35 100644 --- a/src/libcollections/bit.rs +++ b/src/libcollections/bit.rs @@ -40,7 +40,6 @@ //! ``` //! # #![feature(collections, core, step_by)] //! use std::collections::{BitSet, BitVec}; -//! use std::num::Float; //! use std::iter; //! //! let max_prime = 10000; diff --git a/src/libcollections/fmt.rs b/src/libcollections/fmt.rs index 4a276abaf7a..2b502b2227e 100644 --- a/src/libcollections/fmt.rs +++ b/src/libcollections/fmt.rs @@ -175,7 +175,6 @@ //! # #![feature(core, std_misc)] //! use std::fmt; //! use std::f64; -//! use std::num::Float; //! //! #[derive(Debug)] //! struct Vector2D { @@ -200,10 +199,11 @@ //! let magnitude = magnitude.sqrt(); //! //! // Respect the formatting flags by using the helper method -//! // `pad_integral` on the Formatter object. See the method documentation -//! // for details, and the function `pad` can be used to pad strings. +//! // `pad_integral` on the Formatter object. See the method +//! // documentation for details, and the function `pad` can be used +//! // to pad strings. //! let decimals = f.precision().unwrap_or(3); -//! let string = f64::to_str_exact(magnitude, decimals); +//! let string = format!("{:.*}", decimals, magnitude); //! f.pad_integral(true, "", &string) //! } //! } diff --git a/src/libcollections/slice.rs b/src/libcollections/slice.rs index 5be9739cb32..6622d8a9c40 100644 --- a/src/libcollections/slice.rs +++ b/src/libcollections/slice.rs @@ -98,7 +98,7 @@ use self::Direction::*; use borrow::{Borrow, BorrowMut, ToOwned}; use vec::Vec; -pub use core::slice::{Chunks, AsSlice, Windows}; +pub use core::slice::{Chunks, Windows}; pub use core::slice::{Iter, IterMut}; pub use core::slice::{IntSliceExt, SplitMut, ChunksMut, Split}; pub use core::slice::{SplitN, RSplitN, SplitNMut, RSplitNMut}; diff --git a/src/libcollections/str.rs b/src/libcollections/str.rs index b585c2fc6ed..db9f526a0f2 100644 --- a/src/libcollections/str.rs +++ b/src/libcollections/str.rs @@ -67,7 +67,7 @@ use rustc_unicode; use vec::Vec; use slice::SliceConcatExt; -pub use core::str::{FromStr, Utf8Error, Str}; +pub use core::str::{FromStr, Utf8Error}; pub use core::str::{Lines, LinesAny, CharRange}; pub use core::str::{Split, RSplit}; pub use core::str::{SplitN, RSplitN}; diff --git a/src/libcollections/string.rs b/src/libcollections/string.rs index ce0be3029dc..420fc9f59b0 100644 --- a/src/libcollections/string.rs +++ b/src/libcollections/string.rs @@ -837,15 +837,6 @@ impl<'a, 'b> PartialEq<Cow<'a, str>> for &'b str { fn ne(&self, other: &Cow<'a, str>) -> bool { PartialEq::ne(&self[..], &other[..]) } } -#[unstable(feature = "collections", reason = "waiting on Str stabilization")] -#[allow(deprecated)] -impl Str for String { - #[inline] - fn as_slice(&self) -> &str { - unsafe { mem::transmute(&*self.vec) } - } -} - #[stable(feature = "rust1", since = "1.0.0")] impl Default for String { #[inline] @@ -1067,14 +1058,6 @@ impl<'a> IntoCow<'a, str> for &'a str { } } -#[allow(deprecated)] -impl<'a> Str for Cow<'a, str> { - #[inline] - fn as_slice<'b>(&'b self) -> &'b str { - &**self - } -} - #[stable(feature = "rust1", since = "1.0.0")] impl fmt::Write for String { #[inline] diff --git a/src/libcollections/vec.rs b/src/libcollections/vec.rs index 3e08096e166..4bbfabdd72f 100644 --- a/src/libcollections/vec.rs +++ b/src/libcollections/vec.rs @@ -1592,18 +1592,6 @@ impl<T: Ord> Ord for Vec<T> { } #[unstable(feature = "collections", - reason = "will be replaced by slice syntax")] -#[deprecated(since = "1.0.0", reason = "use &mut s[..] instead")] -#[allow(deprecated)] -impl<T> AsSlice<T> for Vec<T> { - /// Deprecated: use `&mut s[..]` instead. - #[inline] - fn as_slice(&self) -> &[T] { - self - } -} - -#[unstable(feature = "collections", reason = "recent addition, needs more experience")] impl<'a, T: Clone> Add<&'a [T]> for Vec<T> { type Output = Vec<T>; diff --git a/src/libcore/fmt/float.rs b/src/libcore/fmt/float.rs index 72c25c68040..4b75bd5f67e 100644 --- a/src/libcore/fmt/float.rs +++ b/src/libcore/fmt/float.rs @@ -11,15 +11,15 @@ pub use self::ExponentFormat::*; pub use self::SignificantDigits::*; -use char::{self, CharExt}; +use prelude::*; + +use char; use fmt; -use iter::Iterator; -use num::{cast, Float, ToPrimitive}; +use num::Float; use num::FpCategory as Fp; -use ops::FnOnce; -use result::Result::Ok; -use slice::{self, SliceExt}; -use str::{self, StrExt}; +use ops::{Div, Rem, Mul}; +use slice; +use str; /// A flag that specifies whether to use exponential (scientific) notation. pub enum ExponentFormat { @@ -42,6 +42,21 @@ pub enum SignificantDigits { DigExact(usize) } +#[doc(hidden)] +pub trait MyFloat: Float + PartialEq + PartialOrd + Div<Output=Self> + + Mul<Output=Self> + Rem<Output=Self> + Copy { + fn from_u32(u: u32) -> Self; + fn to_i32(&self) -> i32; +} + +macro_rules! doit { + ($($t:ident)*) => ($(impl MyFloat for $t { + fn from_u32(u: u32) -> $t { u as $t } + fn to_i32(&self) -> i32 { *self as i32 } + })*) +} +doit! { f32 f64 } + /// Converts a float number to its string representation. /// This is meant to be a common base implementation for various formatting styles. /// The number is assumed to be non-negative, callers use `Formatter::pad_integral` @@ -63,7 +78,7 @@ pub enum SignificantDigits { /// # Panics /// /// - Panics if `num` is negative. -pub fn float_to_str_bytes_common<T: Float, U, F>( +pub fn float_to_str_bytes_common<T: MyFloat, U, F>( num: T, digits: SignificantDigits, exp_format: ExponentFormat, @@ -72,10 +87,10 @@ pub fn float_to_str_bytes_common<T: Float, U, F>( ) -> U where F: FnOnce(&str) -> U, { - let _0: T = Float::zero(); - let _1: T = Float::one(); + let _0: T = T::zero(); + let _1: T = T::one(); let radix: u32 = 10; - let radix_f: T = cast(radix).unwrap(); + let radix_f = T::from_u32(radix); assert!(num.is_nan() || num >= _0, "float_to_str_bytes_common: number is negative"); @@ -99,7 +114,7 @@ pub fn float_to_str_bytes_common<T: Float, U, F>( let (num, exp) = match exp_format { ExpDec if num != _0 => { let exp = num.log10().floor(); - (num / radix_f.powf(exp), cast::<T, i32>(exp).unwrap()) + (num / radix_f.powf(exp), exp.to_i32()) } _ => (num, 0) }; @@ -114,7 +129,7 @@ pub fn float_to_str_bytes_common<T: Float, U, F>( deccum = deccum / radix_f; deccum = deccum.trunc(); - let c = char::from_digit(current_digit.to_isize().unwrap() as u32, radix); + let c = char::from_digit(current_digit.to_i32() as u32, radix); buf[end] = c.unwrap() as u8; end += 1; @@ -158,7 +173,7 @@ pub fn float_to_str_bytes_common<T: Float, U, F>( let current_digit = deccum.trunc(); - let c = char::from_digit(current_digit.to_isize().unwrap() as u32, radix); + let c = char::from_digit(current_digit.to_i32() as u32, radix); buf[end] = c.unwrap() as u8; end += 1; diff --git a/src/libcore/fmt/mod.rs b/src/libcore/fmt/mod.rs index f6b3bdcecb9..0178b321e88 100644 --- a/src/libcore/fmt/mod.rs +++ b/src/libcore/fmt/mod.rs @@ -12,21 +12,16 @@ #![stable(feature = "rust1", since = "1.0.0")] +use prelude::*; + use cell::{Cell, RefCell, Ref, RefMut, BorrowState}; -use char::CharExt; -use clone::Clone; -use iter::Iterator; -use marker::{Copy, PhantomData, Sized}; +use marker::PhantomData; use mem; -use num::Float; -use option::Option; -use option::Option::{Some, None}; -use result::Result::Ok; -use ops::{Deref, FnOnce}; +use ops::Deref; use result; -use slice::SliceExt; +use num::Float; use slice; -use str::{self, StrExt}; +use str; use self::rt::v1::Alignment; pub use self::num::radix; @@ -929,7 +924,8 @@ impl<'a, T> Pointer for &'a mut T { } // Common code of floating point Debug and Display. -fn float_to_str_common<T: Float, F>(num: &T, precision: Option<usize>, post: F) -> Result +fn float_to_str_common<T: float::MyFloat, F>(num: &T, precision: Option<usize>, + post: F) -> Result where F : FnOnce(&str) -> Result { let digits = match precision { Some(i) => float::DigExact(i), @@ -967,8 +963,6 @@ macro_rules! floating { ($ty:ident) => { #[stable(feature = "rust1", since = "1.0.0")] impl LowerExp for $ty { fn fmt(&self, fmt: &mut Formatter) -> Result { - use num::Float; - let digits = match fmt.precision { Some(i) => float::DigExact(i), None => float::DigMax(6), @@ -986,8 +980,6 @@ macro_rules! floating { ($ty:ident) => { #[stable(feature = "rust1", since = "1.0.0")] impl UpperExp for $ty { fn fmt(&self, fmt: &mut Formatter) -> Result { - use num::Float; - let digits = match fmt.precision { Some(i) => float::DigExact(i), None => float::DigMax(6), diff --git a/src/libcore/fmt/num.rs b/src/libcore/fmt/num.rs index 76c975902aa..122fffc5959 100644 --- a/src/libcore/fmt/num.rs +++ b/src/libcore/fmt/num.rs @@ -14,12 +14,28 @@ #![allow(unsigned_negation)] +use prelude::*; + use fmt; -use iter::Iterator; -use num::{Int, cast}; -use slice::SliceExt; +use num::Zero; +use ops::{Div, Rem, Sub}; use str; +#[doc(hidden)] +trait Int: Zero + PartialEq + PartialOrd + Div<Output=Self> + Rem<Output=Self> + + Sub<Output=Self> + Copy { + fn from_u8(u: u8) -> Self; + fn to_u8(&self) -> u8; +} + +macro_rules! doit { + ($($t:ident)*) => ($(impl Int for $t { + fn from_u8(u: u8) -> $t { u as $t } + fn to_u8(&self) -> u8 { *self as u8 } + })*) +} +doit! { i8 i16 i32 i64 isize u8 u16 u32 u64 usize } + /// A type that represents a specific radix #[doc(hidden)] trait GenericRadix { @@ -33,33 +49,32 @@ trait GenericRadix { fn digit(&self, x: u8) -> u8; /// Format an integer using the radix using a formatter. - #[allow(deprecated)] // Int fn fmt_int<T: Int>(&self, mut x: T, f: &mut fmt::Formatter) -> fmt::Result { // The radix can be as low as 2, so we need a buffer of at least 64 // characters for a base 2 number. - let zero = Int::zero(); + let zero = T::zero(); let is_positive = x >= zero; let mut buf = [0; 64]; let mut curr = buf.len(); - let base = cast(self.base()).unwrap(); + let base = T::from_u8(self.base()); if is_positive { // Accumulate each digit of the number from the least significant // to the most significant figure. for byte in buf.iter_mut().rev() { - let n = x % base; // Get the current place value. - x = x / base; // Deaccumulate the number. - *byte = self.digit(cast(n).unwrap()); // Store the digit in the buffer. + let n = x % base; // Get the current place value. + x = x / base; // Deaccumulate the number. + *byte = self.digit(n.to_u8()); // Store the digit in the buffer. curr -= 1; - if x == zero { break }; // No more digits left to accumulate. + if x == zero { break }; // No more digits left to accumulate. } } else { // Do the same as above, but accounting for two's complement. for byte in buf.iter_mut().rev() { - let n = zero - (x % base); // Get the current place value. - x = x / base; // Deaccumulate the number. - *byte = self.digit(cast(n).unwrap()); // Store the digit in the buffer. + let n = zero - (x % base); // Get the current place value. + x = x / base; // Deaccumulate the number. + *byte = self.digit(n.to_u8()); // Store the digit in the buffer. curr -= 1; - if x == zero { break }; // No more digits left to accumulate. + if x == zero { break }; // No more digits left to accumulate. } } let buf = unsafe { str::from_utf8_unchecked(&buf[curr..]) }; diff --git a/src/libcore/iter.rs b/src/libcore/iter.rs index 24ef8a6e01a..233ed018119 100644 --- a/src/libcore/iter.rs +++ b/src/libcore/iter.rs @@ -64,7 +64,7 @@ use cmp::{Ord, PartialOrd, PartialEq}; use default::Default; use marker; use mem; -use num::{Int, Zero, One}; +use num::{Zero, One}; use ops::{self, Add, Sub, FnMut, Mul, RangeFrom}; use option::Option::{self, Some, None}; use marker::Sized; @@ -2327,9 +2327,8 @@ impl<I: RandomAccessIterator, F> RandomAccessIterator for Inspect<I, F> /// An iterator that yields sequential Fibonacci numbers, and stops on overflow. /// /// ``` -/// # #![feature(core)] +/// #![feature(core)] /// use std::iter::Unfold; -/// use std::num::Int; // For `.checked_add()` /// /// // This iterator will yield up to the last Fibonacci number before the max /// // value of `u32`. You can simply change `u32` to `u64` in this line if @@ -2647,80 +2646,6 @@ impl<A: Step + Zero + Clone> Iterator for StepBy<A, ops::Range<A>> { } } -/// An iterator over the range [start, stop] by `step`. It handles overflow by stopping. -#[derive(Clone)] -#[unstable(feature = "core", - reason = "likely to be replaced by range notation and adapters")] -pub struct RangeStepInclusive<A> { - state: A, - stop: A, - step: A, - rev: bool, - done: bool, -} - -/// Returns an iterator over the range [start, stop] by `step`. -/// -/// It handles overflow by stopping. -/// -/// # Examples -/// -/// ``` -/// # #![feature(core)] -/// use std::iter::range_step_inclusive; -/// -/// for i in range_step_inclusive(0, 10, 2) { -/// println!("{}", i); -/// } -/// ``` -/// -/// This prints: -/// -/// ```text -/// 0 -/// 2 -/// 4 -/// 6 -/// 8 -/// 10 -/// ``` -#[inline] -#[unstable(feature = "core", - reason = "likely to be replaced by range notation and adapters")] -#[allow(deprecated)] -pub fn range_step_inclusive<A: Int>(start: A, stop: A, step: A) -> RangeStepInclusive<A> { - let rev = step < Int::zero(); - RangeStepInclusive { - state: start, - stop: stop, - step: step, - rev: rev, - done: false, - } -} - -#[unstable(feature = "core", - reason = "likely to be replaced by range notation and adapters")] -#[allow(deprecated)] -impl<A: Int> Iterator for RangeStepInclusive<A> { - type Item = A; - - #[inline] - fn next(&mut self) -> Option<A> { - if !self.done && ((self.rev && self.state >= self.stop) || - (!self.rev && self.state <= self.stop)) { - let result = self.state; - match self.state.checked_add(self.step) { - Some(x) => self.state = x, - None => self.done = true - } - Some(result) - } else { - None - } - } -} - macro_rules! range_exact_iter_impl { ($($t:ty)*) => ($( #[stable(feature = "rust1", since = "1.0.0")] diff --git a/src/libcore/lib.rs b/src/libcore/lib.rs index 164d3e49385..249f0a0c389 100644 --- a/src/libcore/lib.rs +++ b/src/libcore/lib.rs @@ -108,6 +108,7 @@ mod uint_macros; #[path = "num/f32.rs"] pub mod f32; #[path = "num/f64.rs"] pub mod f64; +#[macro_use] pub mod num; /* The libcore prelude, not as all-encompassing as the libstd prelude */ diff --git a/src/libcore/marker.rs b/src/libcore/marker.rs index d6a7126a883..fdabdbc5ed4 100644 --- a/src/libcore/marker.rs +++ b/src/libcore/marker.rs @@ -35,7 +35,16 @@ use hash::Hasher; #[stable(feature = "rust1", since = "1.0.0")] #[lang="send"] #[rustc_on_unimplemented = "`{Self}` cannot be sent between threads safely"] -#[allow(deprecated)] +#[cfg(not(stage0))] +pub unsafe trait Send { + // empty. +} + +/// Types able to be transferred across thread boundaries. +#[stable(feature = "rust1", since = "1.0.0")] +#[lang="send"] +#[rustc_on_unimplemented = "`{Self}` cannot be sent between threads safely"] +#[cfg(stage0)] pub unsafe trait Send : MarkerTrait { // empty. } @@ -51,7 +60,17 @@ impl !Send for Managed { } #[lang="sized"] #[rustc_on_unimplemented = "`{Self}` does not have a constant size known at compile-time"] #[fundamental] // for Default, for example, which requires that `[T]: !Default` be evaluatable -#[allow(deprecated)] +#[cfg(not(stage0))] +pub trait Sized { + // Empty. +} + +/// Types with a constant size known at compile-time. +#[stable(feature = "rust1", since = "1.0.0")] +#[lang="sized"] +#[rustc_on_unimplemented = "`{Self}` does not have a constant size known at compile-time"] +#[fundamental] // for Default, for example, which requires that `[T]: !Default` be evaluatable +#[cfg(stage0)] pub trait Sized : MarkerTrait { // Empty. } @@ -199,13 +218,23 @@ pub trait Copy : Clone { /// the `sync` crate do ensure that any mutation cannot cause data /// races. Hence these types are `Sync`. /// -/// Any types with interior mutability must also use the `std::cell::UnsafeCell` wrapper around the -/// value(s) which can be mutated when behind a `&` reference; not doing this is undefined -/// behaviour (for example, `transmute`-ing from `&T` to `&mut T` is illegal). +/// Any types with interior mutability must also use the `std::cell::UnsafeCell` +/// wrapper around the value(s) which can be mutated when behind a `&` +/// reference; not doing this is undefined behaviour (for example, +/// `transmute`-ing from `&T` to `&mut T` is illegal). +#[cfg(not(stage0))] +#[stable(feature = "rust1", since = "1.0.0")] +#[lang="sync"] +#[rustc_on_unimplemented = "`{Self}` cannot be shared between threads safely"] +pub unsafe trait Sync { + // Empty +} + +/// dox +#[cfg(stage0)] #[stable(feature = "rust1", since = "1.0.0")] #[lang="sync"] #[rustc_on_unimplemented = "`{Self}` cannot be shared between threads safely"] -#[allow(deprecated)] pub unsafe trait Sync : MarkerTrait { // Empty } @@ -272,42 +301,20 @@ macro_rules! impls{ ) } -/// `MarkerTrait` is deprecated and no longer needed. +/// dox #[stable(feature = "rust1", since = "1.0.0")] -#[deprecated(since = "1.0.0", reason = "No longer needed")] -#[allow(deprecated)] #[cfg(stage0)] pub trait MarkerTrait : PhantomFn<Self,Self> { } -/// `MarkerTrait` is deprecated and no longer needed. -#[stable(feature = "rust1", since = "1.0.0")] -#[deprecated(since = "1.0.0", reason = "No longer needed")] -#[allow(deprecated)] -#[cfg(not(stage0))] -pub trait MarkerTrait { } - -#[allow(deprecated)] -impl<T:?Sized> MarkerTrait for T { } +#[cfg(stage0)] +impl<T: ?Sized> MarkerTrait for T {} -/// `PhantomFn` is a deprecated marker trait that is no longer needed. +/// dox #[lang="phantom_fn"] -#[stable(feature = "rust1", since = "1.0.0")] -#[deprecated(since = "1.0.0", reason = "No longer needed")] #[cfg(stage0)] pub trait PhantomFn<A:?Sized,R:?Sized=()> { } -/// `PhantomFn` is a deprecated marker trait that is no longer needed. -#[stable(feature = "rust1", since = "1.0.0")] -#[deprecated(since = "1.0.0", reason = "No longer needed")] -#[cfg(not(stage0))] -pub trait PhantomFn<A:?Sized,R:?Sized=()> { -} - -#[allow(deprecated)] -#[cfg(not(stage0))] -impl<A:?Sized,R:?Sized,T:?Sized> PhantomFn<A,R> for T { } - /// `PhantomData<T>` allows you to describe that a type acts as if it stores a value of type `T`, /// even though it does not. This allows you to inform the compiler about certain safety properties /// of your code. @@ -454,8 +461,14 @@ mod impls { #[rustc_reflect_like] #[unstable(feature = "core", reason = "requires RFC and more experience")] #[allow(deprecated)] -pub trait Reflect : MarkerTrait { -} +#[cfg(not(stage0))] +pub trait Reflect {} + +/// dox +#[rustc_reflect_like] +#[unstable(feature = "core", reason = "requires RFC and more experience")] +#[cfg(stage0)] +pub trait Reflect: MarkerTrait {} impl Reflect for .. { } diff --git a/src/libcore/nonzero.rs b/src/libcore/nonzero.rs index db2d1b2f1fd..9ea44c39fe9 100644 --- a/src/libcore/nonzero.rs +++ b/src/libcore/nonzero.rs @@ -10,12 +10,17 @@ //! Exposes the NonZero lang item which provides optimization hints. -use marker::{Sized, MarkerTrait}; +use marker::Sized; use ops::Deref; +#[cfg(stage0)] use marker::MarkerTrait; /// Unsafe trait to indicate what types are usable with the NonZero struct -#[allow(deprecated)] -pub unsafe trait Zeroable : MarkerTrait {} +#[cfg(not(stage0))] +pub unsafe trait Zeroable {} + +/// Unsafe trait to indicate what types are usable with the NonZero struct +#[cfg(stage0)] +pub unsafe trait Zeroable: MarkerTrait {} unsafe impl<T:?Sized> Zeroable for *const T {} unsafe impl<T:?Sized> Zeroable for *mut T {} diff --git a/src/libcore/num/f32.rs b/src/libcore/num/f32.rs index 12b45a766b6..50dd3f1661a 100644 --- a/src/libcore/num/f32.rs +++ b/src/libcore/num/f32.rs @@ -16,11 +16,12 @@ #![stable(feature = "rust1", since = "1.0.0")] +use prelude::*; + use intrinsics; use mem; -use num::Float; +use num::{Float, ParseFloatError}; use num::FpCategory as Fp; -use option::Option; #[stable(feature = "rust1", since = "1.0.0")] pub const RADIX: u32 = 2; @@ -35,19 +36,6 @@ pub const EPSILON: f32 = 1.19209290e-07_f32; /// Smallest finite f32 value #[stable(feature = "rust1", since = "1.0.0")] -#[deprecated(since = "1.0.0", reason = "use `std::f32::MIN`")] -pub const MIN_VALUE: f32 = -3.40282347e+38_f32; -/// Smallest positive, normalized f32 value -#[stable(feature = "rust1", since = "1.0.0")] -#[deprecated(since = "1.0.0", reason = "use `std::f32::MIN_POSITIVE`")] -pub const MIN_POS_VALUE: f32 = 1.17549435e-38_f32; -/// Largest finite f32 value -#[stable(feature = "rust1", since = "1.0.0")] -#[deprecated(since = "1.0.0", reason = "use `std::f32::MAX`")] -pub const MAX_VALUE: f32 = 3.40282347e+38_f32; - -/// Smallest finite f32 value -#[stable(feature = "rust1", since = "1.0.0")] pub const MIN: f32 = -3.40282347e+38_f32; /// Smallest positive, normalized f32 value #[stable(feature = "rust1", since = "1.0.0")] @@ -118,26 +106,14 @@ pub mod consts { #[stable(feature = "rust1", since = "1.0.0")] pub const FRAC_2_SQRT_PI: f32 = 1.12837916709551257389615890312154517_f32; - #[stable(feature = "rust1", since = "1.0.0")] - #[deprecated(since = "1.0.0", reason = "renamed to FRAC_2_SQRT_PI")] - pub const FRAC_2_SQRTPI: f32 = 1.12837916709551257389615890312154517_f32; - /// sqrt(2.0) #[stable(feature = "rust1", since = "1.0.0")] pub const SQRT_2: f32 = 1.41421356237309504880168872420969808_f32; - #[stable(feature = "rust1", since = "1.0.0")] - #[deprecated(since = "1.0.0", reason = "renamed to SQRT_2")] - pub const SQRT2: f32 = 1.41421356237309504880168872420969808_f32; - /// 1.0/sqrt(2.0) #[stable(feature = "rust1", since = "1.0.0")] pub const FRAC_1_SQRT_2: f32 = 0.707106781186547524400844362104849039_f32; - #[stable(feature = "rust1", since = "1.0.0")] - #[deprecated(since = "1.0.0", reason = "renamed to FRAC_1_SQRT_2")] - pub const FRAC_1_SQRT2: f32 = 0.707106781186547524400844362104849039_f32; - /// Euler's number #[stable(feature = "rust1", since = "1.0.0")] pub const E: f32 = 2.71828182845904523536028747135266250_f32; @@ -179,6 +155,8 @@ impl Float for f32 { #[inline] fn one() -> f32 { 1.0 } + from_str_radix_float_impl! { f32 } + /// Returns `true` if the number is NaN. #[inline] fn is_nan(self) -> bool { self != self } @@ -218,56 +196,6 @@ impl Float for f32 { } } - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0")] - fn mantissa_digits(_: Option<f32>) -> usize { MANTISSA_DIGITS as usize } - - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0")] - fn digits(_: Option<f32>) -> usize { DIGITS as usize } - - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0")] - fn epsilon() -> f32 { EPSILON } - - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0")] - fn min_exp(_: Option<f32>) -> isize { MIN_EXP as isize } - - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0")] - fn max_exp(_: Option<f32>) -> isize { MAX_EXP as isize } - - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0")] - fn min_10_exp(_: Option<f32>) -> isize { MIN_10_EXP as isize } - - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0")] - fn max_10_exp(_: Option<f32>) -> isize { MAX_10_EXP as isize } - - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0")] - fn min_value() -> f32 { MIN } - - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0")] - fn min_pos_value(_: Option<f32>) -> f32 { MIN_POSITIVE } - - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0")] - fn max_value() -> f32 { MAX } - /// Returns the mantissa, exponent and sign as integers. fn integer_decode(self) -> (u64, i16, i8) { let bits: u32 = unsafe { mem::transmute(self) }; @@ -310,9 +238,6 @@ impl Float for f32 { /// The fractional part of the number, satisfying: /// /// ``` - /// # #![feature(core)] - /// use std::num::Float; - /// /// let x = 1.65f32; /// assert!(x == x.trunc() + x.fract()) /// ``` diff --git a/src/libcore/num/f64.rs b/src/libcore/num/f64.rs index 058acedd9c9..62b566e7eb4 100644 --- a/src/libcore/num/f64.rs +++ b/src/libcore/num/f64.rs @@ -16,11 +16,12 @@ #![stable(feature = "rust1", since = "1.0.0")] +use prelude::*; + use intrinsics; use mem; -use num::Float; use num::FpCategory as Fp; -use option::Option; +use num::{Float, ParseFloatError}; #[stable(feature = "rust1", since = "1.0.0")] pub const RADIX: u32 = 2; @@ -35,19 +36,6 @@ pub const EPSILON: f64 = 2.2204460492503131e-16_f64; /// Smallest finite f64 value #[stable(feature = "rust1", since = "1.0.0")] -#[deprecated(since = "1.0.0", reason = "use `std::f64::MIN`")] -pub const MIN_VALUE: f64 = -1.7976931348623157e+308_f64; -/// Smallest positive, normalized f64 value -#[stable(feature = "rust1", since = "1.0.0")] -#[deprecated(since = "1.0.0", reason = "use `std::f64::MIN_POSITIVE`")] -pub const MIN_POS_VALUE: f64 = 2.2250738585072014e-308_f64; -/// Largest finite f64 value -#[stable(feature = "rust1", since = "1.0.0")] -#[deprecated(since = "1.0.0", reason = "use `std::f64::MAX`")] -pub const MAX_VALUE: f64 = 1.7976931348623157e+308_f64; - -/// Smallest finite f64 value -#[stable(feature = "rust1", since = "1.0.0")] pub const MIN: f64 = -1.7976931348623157e+308_f64; /// Smallest positive, normalized f64 value #[stable(feature = "rust1", since = "1.0.0")] @@ -118,26 +106,14 @@ pub mod consts { #[stable(feature = "rust1", since = "1.0.0")] pub const FRAC_2_SQRT_PI: f64 = 1.12837916709551257389615890312154517_f64; - #[stable(feature = "rust1", since = "1.0.0")] - #[deprecated(since = "1.0.0", reason = "renamed to FRAC_2_SQRT_PI")] - pub const FRAC_2_SQRTPI: f64 = 1.12837916709551257389615890312154517_f64; - /// sqrt(2.0) #[stable(feature = "rust1", since = "1.0.0")] pub const SQRT_2: f64 = 1.41421356237309504880168872420969808_f64; - #[stable(feature = "rust1", since = "1.0.0")] - #[deprecated(since = "1.0.0", reason = "renamed to SQRT_2")] - pub const SQRT2: f64 = 1.41421356237309504880168872420969808_f64; - /// 1.0/sqrt(2.0) #[stable(feature = "rust1", since = "1.0.0")] pub const FRAC_1_SQRT_2: f64 = 0.707106781186547524400844362104849039_f64; - #[stable(feature = "rust1", since = "1.0.0")] - #[deprecated(since = "1.0.0", reason = "renamed to FRAC_1_SQRT_2")] - pub const FRAC_1_SQRT2: f64 = 0.707106781186547524400844362104849039_f64; - /// Euler's number #[stable(feature = "rust1", since = "1.0.0")] pub const E: f64 = 2.71828182845904523536028747135266250_f64; @@ -179,6 +155,8 @@ impl Float for f64 { #[inline] fn one() -> f64 { 1.0 } + from_str_radix_float_impl! { f64 } + /// Returns `true` if the number is NaN. #[inline] fn is_nan(self) -> bool { self != self } @@ -218,56 +196,6 @@ impl Float for f64 { } } - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0")] - fn mantissa_digits(_: Option<f64>) -> usize { MANTISSA_DIGITS as usize } - - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0")] - fn digits(_: Option<f64>) -> usize { DIGITS as usize } - - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0")] - fn epsilon() -> f64 { EPSILON } - - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0")] - fn min_exp(_: Option<f64>) -> isize { MIN_EXP as isize } - - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0")] - fn max_exp(_: Option<f64>) -> isize { MAX_EXP as isize } - - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0")] - fn min_10_exp(_: Option<f64>) -> isize { MIN_10_EXP as isize } - - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0")] - fn max_10_exp(_: Option<f64>) -> isize { MAX_10_EXP as isize } - - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0")] - fn min_value() -> f64 { MIN } - - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0")] - fn min_pos_value(_: Option<f64>) -> f64 { MIN_POSITIVE } - - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0")] - fn max_value() -> f64 { MAX } - /// Returns the mantissa, exponent and sign as integers. fn integer_decode(self) -> (u64, i16, i8) { let bits: u64 = unsafe { mem::transmute(self) }; @@ -310,9 +238,6 @@ impl Float for f64 { /// The fractional part of the number, satisfying: /// /// ``` - /// # #![feature(core)] - /// use std::num::Float; - /// /// let x = 1.65f64; /// assert!(x == x.trunc() + x.fract()) /// ``` diff --git a/src/libcore/num/float_macros.rs b/src/libcore/num/float_macros.rs index b3adef53dab..5ee0dc19f9b 100644 --- a/src/libcore/num/float_macros.rs +++ b/src/libcore/num/float_macros.rs @@ -18,3 +18,145 @@ macro_rules! assert_approx_eq { "{} is not approximately equal to {}", *a, *b); }) } + +macro_rules! from_str_radix_float_impl { + ($T:ty) => { + fn from_str_radix(src: &str, radix: u32) + -> Result<$T, ParseFloatError> { + use num::FloatErrorKind::*; + use num::ParseFloatError as PFE; + + // Special values + match src { + "inf" => return Ok(Float::infinity()), + "-inf" => return Ok(Float::neg_infinity()), + "NaN" => return Ok(Float::nan()), + _ => {}, + } + + let (is_positive, src) = match src.slice_shift_char() { + None => return Err(PFE { kind: Empty }), + Some(('-', "")) => return Err(PFE { kind: Empty }), + Some(('-', src)) => (false, src), + Some((_, _)) => (true, src), + }; + + // The significand to accumulate + let mut sig = if is_positive { 0.0 } else { -0.0 }; + // Necessary to detect overflow + let mut prev_sig = sig; + let mut cs = src.chars().enumerate(); + // Exponent prefix and exponent index offset + let mut exp_info = None::<(char, usize)>; + + // Parse the integer part of the significand + for (i, c) in cs.by_ref() { + match c.to_digit(radix) { + Some(digit) => { + // shift significand one digit left + sig = sig * (radix as $T); + + // add/subtract current digit depending on sign + if is_positive { + sig = sig + ((digit as isize) as $T); + } else { + sig = sig - ((digit as isize) as $T); + } + + // Detect overflow by comparing to last value, except + // if we've not seen any non-zero digits. + if prev_sig != 0.0 { + if is_positive && sig <= prev_sig + { return Ok(Float::infinity()); } + if !is_positive && sig >= prev_sig + { return Ok(Float::neg_infinity()); } + + // Detect overflow by reversing the shift-and-add process + if is_positive && (prev_sig != (sig - digit as $T) / radix as $T) + { return Ok(Float::infinity()); } + if !is_positive && (prev_sig != (sig + digit as $T) / radix as $T) + { return Ok(Float::neg_infinity()); } + } + prev_sig = sig; + }, + None => match c { + 'e' | 'E' | 'p' | 'P' => { + exp_info = Some((c, i + 1)); + break; // start of exponent + }, + '.' => { + break; // start of fractional part + }, + _ => { + return Err(PFE { kind: Invalid }); + }, + }, + } + } + + // If we are not yet at the exponent parse the fractional + // part of the significand + if exp_info.is_none() { + let mut power = 1.0; + for (i, c) in cs.by_ref() { + match c.to_digit(radix) { + Some(digit) => { + // Decrease power one order of magnitude + power = power / (radix as $T); + // add/subtract current digit depending on sign + sig = if is_positive { + sig + (digit as $T) * power + } else { + sig - (digit as $T) * power + }; + // Detect overflow by comparing to last value + if is_positive && sig < prev_sig + { return Ok(Float::infinity()); } + if !is_positive && sig > prev_sig + { return Ok(Float::neg_infinity()); } + prev_sig = sig; + }, + None => match c { + 'e' | 'E' | 'p' | 'P' => { + exp_info = Some((c, i + 1)); + break; // start of exponent + }, + _ => { + return Err(PFE { kind: Invalid }); + }, + }, + } + } + } + + // Parse and calculate the exponent + let exp = match exp_info { + Some((c, offset)) => { + let base = match c { + 'E' | 'e' if radix == 10 => 10.0, + 'P' | 'p' if radix == 16 => 2.0, + _ => return Err(PFE { kind: Invalid }), + }; + + // Parse the exponent as decimal integer + let src = &src[offset..]; + let (is_positive, exp) = match src.slice_shift_char() { + Some(('-', src)) => (false, src.parse::<usize>()), + Some(('+', src)) => (true, src.parse::<usize>()), + Some((_, _)) => (true, src.parse::<usize>()), + None => return Err(PFE { kind: Invalid }), + }; + + match (is_positive, exp) { + (true, Ok(exp)) => base.powi(exp as i32), + (false, Ok(exp)) => 1.0 / base.powi(exp as i32), + (_, Err(_)) => return Err(PFE { kind: Invalid }), + } + }, + None => 1.0, // no exponent + }; + + Ok(sig * exp) + } + } +} diff --git a/src/libcore/num/mod.rs b/src/libcore/num/mod.rs index bcfdcfcd5e6..44d5333ce1f 100644 --- a/src/libcore/num/mod.rs +++ b/src/libcore/num/mod.rs @@ -13,18 +13,14 @@ #![stable(feature = "rust1", since = "1.0.0")] #![allow(missing_docs)] -use self::wrapping::{OverflowingOps, WrappingOps}; +use self::wrapping::OverflowingOps; use char::CharExt; -use clone::Clone; -use cmp::{PartialEq, Eq, PartialOrd, Ord}; +use cmp::{Eq, PartialOrd}; use fmt; use intrinsics; -use iter::Iterator; use marker::Copy; use mem::size_of; -use ops::{Add, Sub, Mul, Div, Rem, Neg}; -use ops::{Not, BitAnd, BitOr, BitXor, Shl, Shr}; use option::Option::{self, Some, None}; use result::Result::{self, Ok, Err}; use str::{FromStr, StrExt}; @@ -98,407 +94,6 @@ macro_rules! zero_one_impl_float { } zero_one_impl_float! { f32 f64 } -/// A built-in signed or unsigned integer. -#[stable(feature = "rust1", since = "1.0.0")] -#[deprecated(since = "1.0.0", - reason = "replaced by inherent methods; for generics, use rust-lang/num")] -#[allow(deprecated)] -pub trait Int - : Copy + Clone - + NumCast - + PartialOrd + Ord - + PartialEq + Eq - + Add<Output=Self> - + Sub<Output=Self> - + Mul<Output=Self> - + Div<Output=Self> - + Rem<Output=Self> - + Not<Output=Self> - + BitAnd<Output=Self> - + BitOr<Output=Self> - + BitXor<Output=Self> - + Shl<usize, Output=Self> - + Shr<usize, Output=Self> - + WrappingOps - + OverflowingOps -{ - /// Returns the `0` value of this integer type. - // FIXME (#5527): Should be an associated constant - #[unstable(feature = "core", - reason = "unsure about its place in the world")] - fn zero() -> Self; - - /// Returns the `1` value of this integer type. - // FIXME (#5527): Should be an associated constant - #[unstable(feature = "core", - reason = "unsure about its place in the world")] - fn one() -> Self; - - /// Returns the smallest value that can be represented by this integer type. - // FIXME (#5527): Should be and associated constant - #[unstable(feature = "core", - reason = "unsure about its place in the world")] - fn min_value() -> Self; - - /// Returns the largest value that can be represented by this integer type. - // FIXME (#5527): Should be and associated constant - #[unstable(feature = "core", - reason = "unsure about its place in the world")] - fn max_value() -> Self; - - /// Returns the number of ones in the binary representation of `self`. - /// - /// # Examples - /// - /// ``` - /// # #![feature(core)] - /// use std::num::Int; - /// - /// let n = 0b01001100u8; - /// - /// assert_eq!(n.count_ones(), 3); - /// ``` - #[unstable(feature = "core", - reason = "pending integer conventions")] - fn count_ones(self) -> u32; - - /// Returns the number of zeros in the binary representation of `self`. - /// - /// # Examples - /// - /// ``` - /// # #![feature(core)] - /// use std::num::Int; - /// - /// let n = 0b01001100u8; - /// - /// assert_eq!(n.count_zeros(), 5); - /// ``` - #[unstable(feature = "core", - reason = "pending integer conventions")] - #[inline] - fn count_zeros(self) -> u32 { - (!self).count_ones() - } - - /// Returns the number of leading zeros in the binary representation - /// of `self`. - /// - /// # Examples - /// - /// ``` - /// # #![feature(core)] - /// use std::num::Int; - /// - /// let n = 0b0101000u16; - /// - /// assert_eq!(n.leading_zeros(), 10); - /// ``` - #[unstable(feature = "core", - reason = "pending integer conventions")] - fn leading_zeros(self) -> u32; - - /// Returns the number of trailing zeros in the binary representation - /// of `self`. - /// - /// # Examples - /// - /// ``` - /// # #![feature(core)] - /// use std::num::Int; - /// - /// let n = 0b0101000u16; - /// - /// assert_eq!(n.trailing_zeros(), 3); - /// ``` - #[unstable(feature = "core", - reason = "pending integer conventions")] - fn trailing_zeros(self) -> u32; - - /// Shifts the bits to the left by a specified amount, `n`, wrapping - /// the truncated bits to the end of the resulting integer. - /// - /// # Examples - /// - /// ``` - /// # #![feature(core)] - /// use std::num::Int; - /// - /// let n = 0x0123456789ABCDEFu64; - /// let m = 0x3456789ABCDEF012u64; - /// - /// assert_eq!(n.rotate_left(12), m); - /// ``` - #[unstable(feature = "core", - reason = "pending integer conventions")] - fn rotate_left(self, n: u32) -> Self; - - /// Shifts the bits to the right by a specified amount, `n`, wrapping - /// the truncated bits to the beginning of the resulting integer. - /// - /// # Examples - /// - /// ``` - /// # #![feature(core)] - /// use std::num::Int; - /// - /// let n = 0x0123456789ABCDEFu64; - /// let m = 0xDEF0123456789ABCu64; - /// - /// assert_eq!(n.rotate_right(12), m); - /// ``` - #[unstable(feature = "core", - reason = "pending integer conventions")] - fn rotate_right(self, n: u32) -> Self; - - /// Reverses the byte order of the integer. - /// - /// # Examples - /// - /// ``` - /// use std::num::Int; - /// - /// let n = 0x0123456789ABCDEFu64; - /// let m = 0xEFCDAB8967452301u64; - /// - /// assert_eq!(n.swap_bytes(), m); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn swap_bytes(self) -> Self; - - /// Converts an integer from big endian to the target's endianness. - /// - /// On big endian this is a no-op. On little endian the bytes are swapped. - /// - /// # Examples - /// - /// ``` - /// use std::num::Int; - /// - /// let n = 0x0123456789ABCDEFu64; - /// - /// if cfg!(target_endian = "big") { - /// assert_eq!(Int::from_be(n), n) - /// } else { - /// assert_eq!(Int::from_be(n), n.swap_bytes()) - /// } - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - #[inline] - fn from_be(x: Self) -> Self { - if cfg!(target_endian = "big") { x } else { x.swap_bytes() } - } - - /// Converts an integer from little endian to the target's endianness. - /// - /// On little endian this is a no-op. On big endian the bytes are swapped. - /// - /// # Examples - /// - /// ``` - /// use std::num::Int; - /// - /// let n = 0x0123456789ABCDEFu64; - /// - /// if cfg!(target_endian = "little") { - /// assert_eq!(Int::from_le(n), n) - /// } else { - /// assert_eq!(Int::from_le(n), n.swap_bytes()) - /// } - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - #[inline] - fn from_le(x: Self) -> Self { - if cfg!(target_endian = "little") { x } else { x.swap_bytes() } - } - - /// Converts `self` to big endian from the target's endianness. - /// - /// On big endian this is a no-op. On little endian the bytes are swapped. - /// - /// # Examples - /// - /// ``` - /// use std::num::Int; - /// - /// let n = 0x0123456789ABCDEFu64; - /// - /// if cfg!(target_endian = "big") { - /// assert_eq!(n.to_be(), n) - /// } else { - /// assert_eq!(n.to_be(), n.swap_bytes()) - /// } - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - #[inline] - fn to_be(self) -> Self { // or not to be? - if cfg!(target_endian = "big") { self } else { self.swap_bytes() } - } - - /// Converts `self` to little endian from the target's endianness. - /// - /// On little endian this is a no-op. On big endian the bytes are swapped. - /// - /// # Examples - /// - /// ``` - /// use std::num::Int; - /// - /// let n = 0x0123456789ABCDEFu64; - /// - /// if cfg!(target_endian = "little") { - /// assert_eq!(n.to_le(), n) - /// } else { - /// assert_eq!(n.to_le(), n.swap_bytes()) - /// } - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - #[inline] - fn to_le(self) -> Self { - if cfg!(target_endian = "little") { self } else { self.swap_bytes() } - } - - /// Checked integer addition. Computes `self + other`, returning `None` if - /// overflow occurred. - /// - /// # Examples - /// - /// ``` - /// use std::num::Int; - /// - /// assert_eq!(5u16.checked_add(65530), Some(65535)); - /// assert_eq!(6u16.checked_add(65530), None); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn checked_add(self, other: Self) -> Option<Self>; - - /// Checked integer subtraction. Computes `self - other`, returning `None` - /// if underflow occurred. - /// - /// # Examples - /// - /// ``` - /// use std::num::Int; - /// - /// assert_eq!((-127i8).checked_sub(1), Some(-128)); - /// assert_eq!((-128i8).checked_sub(1), None); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn checked_sub(self, other: Self) -> Option<Self>; - - /// Checked integer multiplication. Computes `self * other`, returning - /// `None` if underflow or overflow occurred. - /// - /// # Examples - /// - /// ``` - /// use std::num::Int; - /// - /// assert_eq!(5u8.checked_mul(51), Some(255)); - /// assert_eq!(5u8.checked_mul(52), None); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn checked_mul(self, other: Self) -> Option<Self>; - - /// Checked integer division. Computes `self / other`, returning `None` if - /// `other == 0` or the operation results in underflow or overflow. - /// - /// # Examples - /// - /// ``` - /// use std::num::Int; - /// - /// assert_eq!((-127i8).checked_div(-1), Some(127)); - /// assert_eq!((-128i8).checked_div(-1), None); - /// assert_eq!((1i8).checked_div(0), None); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn checked_div(self, other: Self) -> Option<Self>; - - /// Saturating integer addition. Computes `self + other`, saturating at - /// the numeric bounds instead of overflowing. - /// - /// # Examples - /// - /// ``` - /// use std::num::Int; - /// - /// assert_eq!(5u16.saturating_add(65534), 65535); - /// assert_eq!((-5i16).saturating_add(-32767), -32768); - /// assert_eq!(100u32.saturating_add(4294967294), 4294967295); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - #[inline] - fn saturating_add(self, other: Self) -> Self { - match self.checked_add(other) { - Some(x) => x, - None if other >= Int::zero() => Int::max_value(), - None => Int::min_value(), - } - } - - /// Saturating integer subtraction. Computes `self - other`, saturating at - /// the numeric bounds instead of overflowing. - /// - /// # Examples - /// - /// ``` - /// use std::num::Int; - /// - /// assert_eq!(5u16.saturating_sub(65534), 0); - /// assert_eq!(5i16.saturating_sub(-32767), 32767); - /// assert_eq!(100u32.saturating_sub(4294967294), 0); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - #[inline] - fn saturating_sub(self, other: Self) -> Self { - match self.checked_sub(other) { - Some(x) => x, - None if other >= Int::zero() => Int::min_value(), - None => Int::max_value(), - } - } - - /// Raises self to the power of `exp`, using exponentiation by squaring. - /// - /// # Examples - /// - /// ``` - /// # #![feature(core)] - /// use std::num::Int; - /// - /// assert_eq!(2.pow(4), 16); - /// ``` - #[unstable(feature = "core", - reason = "pending integer conventions")] - #[inline] - fn pow(self, mut exp: u32) -> Self { - let mut base = self; - let mut acc: Self = Int::one(); - - let mut prev_base = self; - let mut base_oflo = false; - while exp > 0 { - if (exp & 1) == 1 { - if base_oflo { - // ensure overflow occurs in the same manner it - // would have otherwise (i.e. signal any exception - // it would have otherwise). - acc = acc * (prev_base * prev_base); - } else { - acc = acc * base; - } - } - prev_base = base; - let (new_base, new_base_oflo) = base.overflowing_mul(base); - base = new_base; - base_oflo = new_base_oflo; - exp /= 2; - } - acc - } -} - macro_rules! checked_op { ($T:ty, $U:ty, $op:path, $x:expr, $y:expr) => {{ let (result, overflowed) = unsafe { $op($x as $U, $y as $U) }; @@ -506,328 +101,13 @@ macro_rules! checked_op { }} } -macro_rules! uint_impl { - ($T:ty = $ActualT:ty, $BITS:expr, - $ctpop:path, - $ctlz:path, - $cttz:path, - $bswap:path, - $add_with_overflow:path, - $sub_with_overflow:path, - $mul_with_overflow:path) => { - #[stable(feature = "rust1", since = "1.0.0")] - #[allow(deprecated)] - impl Int for $T { - #[inline] - fn zero() -> $T { 0 } - - #[inline] - fn one() -> $T { 1 } - - #[inline] - fn min_value() -> $T { 0 } - - #[inline] - fn max_value() -> $T { !0 } - - #[inline] - fn count_ones(self) -> u32 { - unsafe { $ctpop(self as $ActualT) as u32 } - } - - #[inline] - fn leading_zeros(self) -> u32 { - unsafe { $ctlz(self as $ActualT) as u32 } - } - - #[inline] - fn trailing_zeros(self) -> u32 { - unsafe { $cttz(self as $ActualT) as u32 } - } - - #[inline] - fn rotate_left(self, n: u32) -> $T { - // Protect against undefined behaviour for over-long bit shifts - let n = n % $BITS; - (self << n) | (self >> (($BITS - n) % $BITS)) - } - - #[inline] - fn rotate_right(self, n: u32) -> $T { - // Protect against undefined behaviour for over-long bit shifts - let n = n % $BITS; - (self >> n) | (self << (($BITS - n) % $BITS)) - } - - #[inline] - fn swap_bytes(self) -> $T { - unsafe { $bswap(self as $ActualT) as $T } - } - - #[inline] - fn checked_add(self, other: $T) -> Option<$T> { - checked_op!($T, $ActualT, $add_with_overflow, self, other) - } - - #[inline] - fn checked_sub(self, other: $T) -> Option<$T> { - checked_op!($T, $ActualT, $sub_with_overflow, self, other) - } - - #[inline] - fn checked_mul(self, other: $T) -> Option<$T> { - checked_op!($T, $ActualT, $mul_with_overflow, self, other) - } - - #[inline] - fn checked_div(self, v: $T) -> Option<$T> { - match v { - 0 => None, - v => Some(self / v), - } - } - } - } -} - /// Swapping a single byte is a no-op. This is marked as `unsafe` for /// consistency with the other `bswap` intrinsics. unsafe fn bswap8(x: u8) -> u8 { x } -uint_impl! { u8 = u8, 8, - intrinsics::ctpop8, - intrinsics::ctlz8, - intrinsics::cttz8, - bswap8, - intrinsics::u8_add_with_overflow, - intrinsics::u8_sub_with_overflow, - intrinsics::u8_mul_with_overflow } - -uint_impl! { u16 = u16, 16, - intrinsics::ctpop16, - intrinsics::ctlz16, - intrinsics::cttz16, - intrinsics::bswap16, - intrinsics::u16_add_with_overflow, - intrinsics::u16_sub_with_overflow, - intrinsics::u16_mul_with_overflow } - -uint_impl! { u32 = u32, 32, - intrinsics::ctpop32, - intrinsics::ctlz32, - intrinsics::cttz32, - intrinsics::bswap32, - intrinsics::u32_add_with_overflow, - intrinsics::u32_sub_with_overflow, - intrinsics::u32_mul_with_overflow } - -uint_impl! { u64 = u64, 64, - intrinsics::ctpop64, - intrinsics::ctlz64, - intrinsics::cttz64, - intrinsics::bswap64, - intrinsics::u64_add_with_overflow, - intrinsics::u64_sub_with_overflow, - intrinsics::u64_mul_with_overflow } - -#[cfg(target_pointer_width = "32")] -uint_impl! { usize = u32, 32, - intrinsics::ctpop32, - intrinsics::ctlz32, - intrinsics::cttz32, - intrinsics::bswap32, - intrinsics::u32_add_with_overflow, - intrinsics::u32_sub_with_overflow, - intrinsics::u32_mul_with_overflow } - -#[cfg(target_pointer_width = "64")] -uint_impl! { usize = u64, 64, - intrinsics::ctpop64, - intrinsics::ctlz64, - intrinsics::cttz64, - intrinsics::bswap64, - intrinsics::u64_add_with_overflow, - intrinsics::u64_sub_with_overflow, - intrinsics::u64_mul_with_overflow } - -macro_rules! int_impl { - ($T:ty = $ActualT:ty, $UnsignedT:ty, $BITS:expr, - $add_with_overflow:path, - $sub_with_overflow:path, - $mul_with_overflow:path) => { - #[stable(feature = "rust1", since = "1.0.0")] - #[allow(deprecated)] - impl Int for $T { - #[inline] - fn zero() -> $T { 0 } - - #[inline] - fn one() -> $T { 1 } - - #[inline] - fn min_value() -> $T { (-1 as $T) << ($BITS - 1) } - - #[inline] - fn max_value() -> $T { let min: $T = Int::min_value(); !min } - - #[inline] - fn count_ones(self) -> u32 { (self as $UnsignedT).count_ones() } - - #[inline] - fn leading_zeros(self) -> u32 { - (self as $UnsignedT).leading_zeros() - } - - #[inline] - fn trailing_zeros(self) -> u32 { - (self as $UnsignedT).trailing_zeros() - } - - #[inline] - fn rotate_left(self, n: u32) -> $T { - (self as $UnsignedT).rotate_left(n) as $T - } - - #[inline] - fn rotate_right(self, n: u32) -> $T { - (self as $UnsignedT).rotate_right(n) as $T - } - - #[inline] - fn swap_bytes(self) -> $T { - (self as $UnsignedT).swap_bytes() as $T - } - - #[inline] - fn checked_add(self, other: $T) -> Option<$T> { - checked_op!($T, $ActualT, $add_with_overflow, self, other) - } - - #[inline] - fn checked_sub(self, other: $T) -> Option<$T> { - checked_op!($T, $ActualT, $sub_with_overflow, self, other) - } - - #[inline] - fn checked_mul(self, other: $T) -> Option<$T> { - checked_op!($T, $ActualT, $mul_with_overflow, self, other) - } - - #[inline] - fn checked_div(self, v: $T) -> Option<$T> { - match v { - 0 => None, - -1 if self == Int::min_value() - => None, - v => Some(self / v), - } - } - } - } -} - -int_impl! { i8 = i8, u8, 8, - intrinsics::i8_add_with_overflow, - intrinsics::i8_sub_with_overflow, - intrinsics::i8_mul_with_overflow } - -int_impl! { i16 = i16, u16, 16, - intrinsics::i16_add_with_overflow, - intrinsics::i16_sub_with_overflow, - intrinsics::i16_mul_with_overflow } - -int_impl! { i32 = i32, u32, 32, - intrinsics::i32_add_with_overflow, - intrinsics::i32_sub_with_overflow, - intrinsics::i32_mul_with_overflow } - -int_impl! { i64 = i64, u64, 64, - intrinsics::i64_add_with_overflow, - intrinsics::i64_sub_with_overflow, - intrinsics::i64_mul_with_overflow } - -#[cfg(target_pointer_width = "32")] -int_impl! { isize = i32, u32, 32, - intrinsics::i32_add_with_overflow, - intrinsics::i32_sub_with_overflow, - intrinsics::i32_mul_with_overflow } - -#[cfg(target_pointer_width = "64")] -int_impl! { isize = i64, u64, 64, - intrinsics::i64_add_with_overflow, - intrinsics::i64_sub_with_overflow, - intrinsics::i64_mul_with_overflow } - -/// A built-in two's complement integer. -#[stable(feature = "rust1", since = "1.0.0")] -#[deprecated(since = "1.0.0", - reason = "replaced by inherent methods; for generics, use rust-lang/num")] -#[allow(deprecated)] -pub trait SignedInt - : Int - + Neg<Output=Self> -{ - /// Computes the absolute value of `self`. `Int::min_value()` will be - /// returned if the number is `Int::min_value()`. - #[unstable(feature = "core", reason = "overflow in debug builds?")] - fn abs(self) -> Self; - - /// Returns a number representing sign of `self`. - /// - /// - `0` if the number is zero - /// - `1` if the number is positive - /// - `-1` if the number is negative - #[stable(feature = "rust1", since = "1.0.0")] - fn signum(self) -> Self; - - /// Returns `true` if `self` is positive and `false` if the number - /// is zero or negative. - #[stable(feature = "rust1", since = "1.0.0")] - fn is_positive(self) -> bool; - - /// Returns `true` if `self` is negative and `false` if the number - /// is zero or positive. - #[stable(feature = "rust1", since = "1.0.0")] - fn is_negative(self) -> bool; -} - -macro_rules! signed_int_impl { - ($T:ty) => { - #[stable(feature = "rust1", since = "1.0.0")] - #[allow(deprecated)] - impl SignedInt for $T { - #[inline] - fn abs(self) -> $T { - if self.is_negative() { -self } else { self } - } - - #[inline] - fn signum(self) -> $T { - match self { - n if n > 0 => 1, - 0 => 0, - _ => -1, - } - } - - #[inline] - fn is_positive(self) -> bool { self > 0 } - - #[inline] - fn is_negative(self) -> bool { self < 0 } - } - } -} - -signed_int_impl! { i8 } -signed_int_impl! { i16 } -signed_int_impl! { i32 } -signed_int_impl! { i64 } -signed_int_impl! { isize } - // `Int` + `SignedInt` implemented for signed integers macro_rules! int_impl { - ($T:ty = $ActualT:ty, $UnsignedT:ty, $BITS:expr, + ($T:ident = $ActualT:ty, $UnsignedT:ty, $BITS:expr, $add_with_overflow:path, $sub_with_overflow:path, $mul_with_overflow:path) => { @@ -840,7 +120,7 @@ macro_rules! int_impl { /// Returns the largest value that can be represented by this integer type. #[stable(feature = "rust1", since = "1.0.0")] pub fn max_value() -> $T { - let min: $T = Int::min_value(); !min + let min = $T::min_value(); !min } /// Converts a string slice in a given base to an integer. @@ -859,7 +139,7 @@ macro_rules! int_impl { #[stable(feature = "rust1", since = "1.0.0")] #[allow(deprecated)] pub fn from_str_radix(src: &str, radix: u32) -> Result<$T, ParseIntError> { - <Self as FromStrRadix>::from_str_radix(src, radix) + from_str_radix(src, radix) } /// Returns the number of ones in the binary representation of `self`. @@ -867,9 +147,6 @@ macro_rules! int_impl { /// # Examples /// /// ```rust - /// # #![feature(core)] - /// use std::num::Int; - /// /// let n = 0b01001100u8; /// /// assert_eq!(n.count_ones(), 3); @@ -883,9 +160,6 @@ macro_rules! int_impl { /// # Examples /// /// ```rust - /// # #![feature(core)] - /// use std::num::Int; - /// /// let n = 0b01001100u8; /// /// assert_eq!(n.count_zeros(), 5); @@ -902,9 +176,6 @@ macro_rules! int_impl { /// # Examples /// /// ```rust - /// # #![feature(core)] - /// use std::num::Int; - /// /// let n = 0b0101000u16; /// /// assert_eq!(n.leading_zeros(), 10); @@ -921,9 +192,6 @@ macro_rules! int_impl { /// # Examples /// /// ```rust - /// # #![feature(core)] - /// use std::num::Int; - /// /// let n = 0b0101000u16; /// /// assert_eq!(n.trailing_zeros(), 3); @@ -940,9 +208,6 @@ macro_rules! int_impl { /// # Examples /// /// ```rust - /// # #![feature(core)] - /// use std::num::Int; - /// /// let n = 0x0123456789ABCDEFu64; /// let m = 0x3456789ABCDEF012u64; /// @@ -961,9 +226,6 @@ macro_rules! int_impl { /// # Examples /// /// ```rust - /// # #![feature(core)] - /// use std::num::Int; - /// /// let n = 0x0123456789ABCDEFu64; /// let m = 0xDEF0123456789ABCu64; /// @@ -980,8 +242,6 @@ macro_rules! int_impl { /// # Examples /// /// ```rust - /// use std::num::Int; - /// /// let n = 0x0123456789ABCDEFu64; /// let m = 0xEFCDAB8967452301u64; /// @@ -1001,14 +261,12 @@ macro_rules! int_impl { /// # Examples /// /// ```rust - /// use std::num::Int; - /// /// let n = 0x0123456789ABCDEFu64; /// /// if cfg!(target_endian = "big") { - /// assert_eq!(Int::from_be(n), n) + /// assert_eq!(u64::from_be(n), n) /// } else { - /// assert_eq!(Int::from_be(n), n.swap_bytes()) + /// assert_eq!(u64::from_be(n), n.swap_bytes()) /// } /// ``` #[stable(feature = "rust1", since = "1.0.0")] @@ -1025,14 +283,12 @@ macro_rules! int_impl { /// # Examples /// /// ```rust - /// use std::num::Int; - /// /// let n = 0x0123456789ABCDEFu64; /// /// if cfg!(target_endian = "little") { - /// assert_eq!(Int::from_le(n), n) + /// assert_eq!(u64::from_le(n), n) /// } else { - /// assert_eq!(Int::from_le(n), n.swap_bytes()) + /// assert_eq!(u64::from_le(n), n.swap_bytes()) /// } /// ``` #[stable(feature = "rust1", since = "1.0.0")] @@ -1049,8 +305,6 @@ macro_rules! int_impl { /// # Examples /// /// ```rust - /// use std::num::Int; - /// /// let n = 0x0123456789ABCDEFu64; /// /// if cfg!(target_endian = "big") { @@ -1073,8 +327,6 @@ macro_rules! int_impl { /// # Examples /// /// ```rust - /// use std::num::Int; - /// /// let n = 0x0123456789ABCDEFu64; /// /// if cfg!(target_endian = "little") { @@ -1095,8 +347,6 @@ macro_rules! int_impl { /// # Examples /// /// ```rust - /// use std::num::Int; - /// /// assert_eq!(5u16.checked_add(65530), Some(65535)); /// assert_eq!(6u16.checked_add(65530), None); /// ``` @@ -1112,8 +362,6 @@ macro_rules! int_impl { /// # Examples /// /// ```rust - /// use std::num::Int; - /// /// assert_eq!((-127i8).checked_sub(1), Some(-128)); /// assert_eq!((-128i8).checked_sub(1), None); /// ``` @@ -1129,8 +377,6 @@ macro_rules! int_impl { /// # Examples /// /// ```rust - /// use std::num::Int; - /// /// assert_eq!(5u8.checked_mul(51), Some(255)); /// assert_eq!(5u8.checked_mul(52), None); /// ``` @@ -1146,8 +392,6 @@ macro_rules! int_impl { /// # Examples /// /// ```rust - /// use std::num::Int; - /// /// assert_eq!((-127i8).checked_div(-1), Some(127)); /// assert_eq!((-128i8).checked_div(-1), None); /// assert_eq!((1i8).checked_div(0), None); @@ -1439,7 +683,7 @@ macro_rules! uint_impl { #[stable(feature = "rust1", since = "1.0.0")] #[allow(deprecated)] pub fn from_str_radix(src: &str, radix: u32) -> Result<$T, ParseIntError> { - <Self as FromStrRadix>::from_str_radix(src, radix) + from_str_radix(src, radix) } /// Returns the number of ones in the binary representation of `self`. @@ -1447,9 +691,6 @@ macro_rules! uint_impl { /// # Examples /// /// ```rust - /// # #![feature(core)] - /// use std::num::Int; - /// /// let n = 0b01001100u8; /// /// assert_eq!(n.count_ones(), 3); @@ -1465,9 +706,6 @@ macro_rules! uint_impl { /// # Examples /// /// ```rust - /// # #![feature(core)] - /// use std::num::Int; - /// /// let n = 0b01001100u8; /// /// assert_eq!(n.count_zeros(), 5); @@ -1484,9 +722,6 @@ macro_rules! uint_impl { /// # Examples /// /// ```rust - /// # #![feature(core)] - /// use std::num::Int; - /// /// let n = 0b0101000u16; /// /// assert_eq!(n.leading_zeros(), 10); @@ -1503,9 +738,6 @@ macro_rules! uint_impl { /// # Examples /// /// ```rust - /// # #![feature(core)] - /// use std::num::Int; - /// /// let n = 0b0101000u16; /// /// assert_eq!(n.trailing_zeros(), 3); @@ -1522,9 +754,6 @@ macro_rules! uint_impl { /// # Examples /// /// ```rust - /// # #![feature(core)] - /// use std::num::Int; - /// /// let n = 0x0123456789ABCDEFu64; /// let m = 0x3456789ABCDEF012u64; /// @@ -1545,9 +774,6 @@ macro_rules! uint_impl { /// # Examples /// /// ```rust - /// # #![feature(core)] - /// use std::num::Int; - /// /// let n = 0x0123456789ABCDEFu64; /// let m = 0xDEF0123456789ABCu64; /// @@ -1566,8 +792,6 @@ macro_rules! uint_impl { /// # Examples /// /// ```rust - /// use std::num::Int; - /// /// let n = 0x0123456789ABCDEFu64; /// let m = 0xEFCDAB8967452301u64; /// @@ -1587,14 +811,12 @@ macro_rules! uint_impl { /// # Examples /// /// ```rust - /// use std::num::Int; - /// /// let n = 0x0123456789ABCDEFu64; /// /// if cfg!(target_endian = "big") { - /// assert_eq!(Int::from_be(n), n) + /// assert_eq!(u64::from_be(n), n) /// } else { - /// assert_eq!(Int::from_be(n), n.swap_bytes()) + /// assert_eq!(u64::from_be(n), n.swap_bytes()) /// } /// ``` #[stable(feature = "rust1", since = "1.0.0")] @@ -1611,14 +833,12 @@ macro_rules! uint_impl { /// # Examples /// /// ```rust - /// use std::num::Int; - /// /// let n = 0x0123456789ABCDEFu64; /// /// if cfg!(target_endian = "little") { - /// assert_eq!(Int::from_le(n), n) + /// assert_eq!(u64::from_le(n), n) /// } else { - /// assert_eq!(Int::from_le(n), n.swap_bytes()) + /// assert_eq!(u64::from_le(n), n.swap_bytes()) /// } /// ``` #[stable(feature = "rust1", since = "1.0.0")] @@ -1635,8 +855,6 @@ macro_rules! uint_impl { /// # Examples /// /// ```rust - /// use std::num::Int; - /// /// let n = 0x0123456789ABCDEFu64; /// /// if cfg!(target_endian = "big") { @@ -1659,8 +877,6 @@ macro_rules! uint_impl { /// # Examples /// /// ```rust - /// use std::num::Int; - /// /// let n = 0x0123456789ABCDEFu64; /// /// if cfg!(target_endian = "little") { @@ -1681,8 +897,6 @@ macro_rules! uint_impl { /// # Examples /// /// ```rust - /// use std::num::Int; - /// /// assert_eq!(5u16.checked_add(65530), Some(65535)); /// assert_eq!(6u16.checked_add(65530), None); /// ``` @@ -1698,8 +912,6 @@ macro_rules! uint_impl { /// # Examples /// /// ```rust - /// use std::num::Int; - /// /// assert_eq!((-127i8).checked_sub(1), Some(-128)); /// assert_eq!((-128i8).checked_sub(1), None); /// ``` @@ -1715,8 +927,6 @@ macro_rules! uint_impl { /// # Examples /// /// ```rust - /// use std::num::Int; - /// /// assert_eq!(5u8.checked_mul(51), Some(255)); /// assert_eq!(5u8.checked_mul(52), None); /// ``` @@ -1732,8 +942,6 @@ macro_rules! uint_impl { /// # Examples /// /// ```rust - /// use std::num::Int; - /// /// assert_eq!((-127i8).checked_div(-1), Some(127)); /// assert_eq!((-128i8).checked_div(-1), None); /// assert_eq!((1i8).checked_div(0), None); @@ -1866,10 +1074,7 @@ macro_rules! uint_impl { /// # Examples /// /// ```rust - /// # #![feature(core)] - /// use std::num::Int; - /// - /// assert_eq!(2.pow(4), 16); + /// assert_eq!(2i32.pow(4), 16); /// ``` #[stable(feature = "rust1", since = "1.0.0")] #[inline] @@ -2007,575 +1212,6 @@ impl usize { intrinsics::u64_mul_with_overflow } } -/// A generic trait for converting a value to a number. -#[unstable(feature = "core", reason = "trait is likely to be removed")] -pub trait ToPrimitive { - /// Converts the value of `self` to an `isize`. - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0", reason = "use to_isize")] - fn to_int(&self) -> Option<isize> { - self.to_i64().and_then(|x| x.to_isize()) - } - - /// Converts the value of `self` to an `isize`. - #[inline] - fn to_isize(&self) -> Option<isize> { - self.to_i64().and_then(|x| x.to_isize()) - } - - /// Converts the value of `self` to an `i8`. - #[inline] - fn to_i8(&self) -> Option<i8> { - self.to_i64().and_then(|x| x.to_i8()) - } - - /// Converts the value of `self` to an `i16`. - #[inline] - fn to_i16(&self) -> Option<i16> { - self.to_i64().and_then(|x| x.to_i16()) - } - - /// Converts the value of `self` to an `i32`. - #[inline] - fn to_i32(&self) -> Option<i32> { - self.to_i64().and_then(|x| x.to_i32()) - } - - /// Converts the value of `self` to an `i64`. - fn to_i64(&self) -> Option<i64>; - - /// Converts the value of `self` to an `usize`. - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0", reason = "use to_usize")] - fn to_uint(&self) -> Option<usize> { - self.to_u64().and_then(|x| x.to_usize()) - } - - /// Converts the value of `self` to a `usize`. - #[inline] - fn to_usize(&self) -> Option<usize> { - self.to_u64().and_then(|x| x.to_usize()) - } - - /// Converts the value of `self` to an `u8`. - #[inline] - fn to_u8(&self) -> Option<u8> { - self.to_u64().and_then(|x| x.to_u8()) - } - - /// Converts the value of `self` to an `u16`. - #[inline] - fn to_u16(&self) -> Option<u16> { - self.to_u64().and_then(|x| x.to_u16()) - } - - /// Converts the value of `self` to an `u32`. - #[inline] - fn to_u32(&self) -> Option<u32> { - self.to_u64().and_then(|x| x.to_u32()) - } - - /// Converts the value of `self` to an `u64`. - #[inline] - fn to_u64(&self) -> Option<u64>; - - /// Converts the value of `self` to an `f32`. - #[inline] - fn to_f32(&self) -> Option<f32> { - self.to_f64().and_then(|x| x.to_f32()) - } - - /// Converts the value of `self` to an `f64`. - #[inline] - fn to_f64(&self) -> Option<f64> { - self.to_i64().and_then(|x| x.to_f64()) - } -} - -macro_rules! impl_to_primitive_int_to_int { - ($SrcT:ty, $DstT:ty, $slf:expr) => ( - { - if size_of::<$SrcT>() <= size_of::<$DstT>() { - Some($slf as $DstT) - } else { - let n = $slf as i64; - let min_value: $DstT = Int::min_value(); - let max_value: $DstT = Int::max_value(); - if min_value as i64 <= n && n <= max_value as i64 { - Some($slf as $DstT) - } else { - None - } - } - } - ) -} - -macro_rules! impl_to_primitive_int_to_uint { - ($SrcT:ty, $DstT:ty, $slf:expr) => ( - { - let zero: $SrcT = Int::zero(); - let max_value: $DstT = Int::max_value(); - if zero <= $slf && $slf as u64 <= max_value as u64 { - Some($slf as $DstT) - } else { - None - } - } - ) -} - -macro_rules! impl_to_primitive_int { - ($T:ty) => ( - impl ToPrimitive for $T { - #[inline] - fn to_int(&self) -> Option<isize> { impl_to_primitive_int_to_int!($T, isize, *self) } - #[inline] - fn to_isize(&self) -> Option<isize> { impl_to_primitive_int_to_int!($T, isize, *self) } - #[inline] - fn to_i8(&self) -> Option<i8> { impl_to_primitive_int_to_int!($T, i8, *self) } - #[inline] - fn to_i16(&self) -> Option<i16> { impl_to_primitive_int_to_int!($T, i16, *self) } - #[inline] - fn to_i32(&self) -> Option<i32> { impl_to_primitive_int_to_int!($T, i32, *self) } - #[inline] - fn to_i64(&self) -> Option<i64> { impl_to_primitive_int_to_int!($T, i64, *self) } - - #[inline] - fn to_uint(&self) -> Option<usize> { impl_to_primitive_int_to_uint!($T, usize, *self) } - #[inline] - fn to_usize(&self) -> Option<usize> { impl_to_primitive_int_to_uint!($T, usize, *self) } - #[inline] - fn to_u8(&self) -> Option<u8> { impl_to_primitive_int_to_uint!($T, u8, *self) } - #[inline] - fn to_u16(&self) -> Option<u16> { impl_to_primitive_int_to_uint!($T, u16, *self) } - #[inline] - fn to_u32(&self) -> Option<u32> { impl_to_primitive_int_to_uint!($T, u32, *self) } - #[inline] - fn to_u64(&self) -> Option<u64> { impl_to_primitive_int_to_uint!($T, u64, *self) } - - #[inline] - fn to_f32(&self) -> Option<f32> { Some(*self as f32) } - #[inline] - fn to_f64(&self) -> Option<f64> { Some(*self as f64) } - } - ) -} - -impl_to_primitive_int! { isize } -impl_to_primitive_int! { i8 } -impl_to_primitive_int! { i16 } -impl_to_primitive_int! { i32 } -impl_to_primitive_int! { i64 } - -macro_rules! impl_to_primitive_uint_to_int { - ($DstT:ty, $slf:expr) => ( - { - let max_value: $DstT = Int::max_value(); - if $slf as u64 <= max_value as u64 { - Some($slf as $DstT) - } else { - None - } - } - ) -} - -macro_rules! impl_to_primitive_uint_to_uint { - ($SrcT:ty, $DstT:ty, $slf:expr) => ( - { - if size_of::<$SrcT>() <= size_of::<$DstT>() { - Some($slf as $DstT) - } else { - let zero: $SrcT = Int::zero(); - let max_value: $DstT = Int::max_value(); - if zero <= $slf && $slf as u64 <= max_value as u64 { - Some($slf as $DstT) - } else { - None - } - } - } - ) -} - -macro_rules! impl_to_primitive_uint { - ($T:ty) => ( - impl ToPrimitive for $T { - #[inline] - fn to_int(&self) -> Option<isize> { impl_to_primitive_uint_to_int!(isize, *self) } - #[inline] - fn to_isize(&self) -> Option<isize> { impl_to_primitive_uint_to_int!(isize, *self) } - #[inline] - fn to_i8(&self) -> Option<i8> { impl_to_primitive_uint_to_int!(i8, *self) } - #[inline] - fn to_i16(&self) -> Option<i16> { impl_to_primitive_uint_to_int!(i16, *self) } - #[inline] - fn to_i32(&self) -> Option<i32> { impl_to_primitive_uint_to_int!(i32, *self) } - #[inline] - fn to_i64(&self) -> Option<i64> { impl_to_primitive_uint_to_int!(i64, *self) } - - #[inline] - fn to_uint(&self) -> Option<usize> { impl_to_primitive_uint_to_uint!($T, usize, *self) } - #[inline] - fn to_usize(&self) -> Option<usize> { - impl_to_primitive_uint_to_uint!($T, usize, *self) - } - #[inline] - fn to_u8(&self) -> Option<u8> { impl_to_primitive_uint_to_uint!($T, u8, *self) } - #[inline] - fn to_u16(&self) -> Option<u16> { impl_to_primitive_uint_to_uint!($T, u16, *self) } - #[inline] - fn to_u32(&self) -> Option<u32> { impl_to_primitive_uint_to_uint!($T, u32, *self) } - #[inline] - fn to_u64(&self) -> Option<u64> { impl_to_primitive_uint_to_uint!($T, u64, *self) } - - #[inline] - fn to_f32(&self) -> Option<f32> { Some(*self as f32) } - #[inline] - fn to_f64(&self) -> Option<f64> { Some(*self as f64) } - } - ) -} - -impl_to_primitive_uint! { usize } -impl_to_primitive_uint! { u8 } -impl_to_primitive_uint! { u16 } -impl_to_primitive_uint! { u32 } -impl_to_primitive_uint! { u64 } - -macro_rules! impl_to_primitive_float_to_float { - ($SrcT:ident, $DstT:ident, $slf:expr) => ( - if size_of::<$SrcT>() <= size_of::<$DstT>() { - Some($slf as $DstT) - } else { - let n = $slf as f64; - let max_value: $SrcT = ::$SrcT::MAX; - if -max_value as f64 <= n && n <= max_value as f64 { - Some($slf as $DstT) - } else { - None - } - } - ) -} - -macro_rules! impl_to_primitive_float { - ($T:ident) => ( - impl ToPrimitive for $T { - #[inline] - fn to_int(&self) -> Option<isize> { Some(*self as isize) } - #[inline] - fn to_isize(&self) -> Option<isize> { Some(*self as isize) } - #[inline] - fn to_i8(&self) -> Option<i8> { Some(*self as i8) } - #[inline] - fn to_i16(&self) -> Option<i16> { Some(*self as i16) } - #[inline] - fn to_i32(&self) -> Option<i32> { Some(*self as i32) } - #[inline] - fn to_i64(&self) -> Option<i64> { Some(*self as i64) } - - #[inline] - fn to_uint(&self) -> Option<usize> { Some(*self as usize) } - #[inline] - fn to_usize(&self) -> Option<usize> { Some(*self as usize) } - #[inline] - fn to_u8(&self) -> Option<u8> { Some(*self as u8) } - #[inline] - fn to_u16(&self) -> Option<u16> { Some(*self as u16) } - #[inline] - fn to_u32(&self) -> Option<u32> { Some(*self as u32) } - #[inline] - fn to_u64(&self) -> Option<u64> { Some(*self as u64) } - - #[inline] - fn to_f32(&self) -> Option<f32> { impl_to_primitive_float_to_float!($T, f32, *self) } - #[inline] - fn to_f64(&self) -> Option<f64> { impl_to_primitive_float_to_float!($T, f64, *self) } - } - ) -} - -impl_to_primitive_float! { f32 } -impl_to_primitive_float! { f64 } - -/// A generic trait for converting a number to a value. -#[unstable(feature = "core", reason = "trait is likely to be removed")] -pub trait FromPrimitive : ::marker::Sized { - /// Converts an `isize` to return an optional value of this type. If the - /// value cannot be represented by this value, the `None` is returned. - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0", reason = "use from_isize")] - fn from_int(n: isize) -> Option<Self> { - FromPrimitive::from_i64(n as i64) - } - - /// Converts an `isize` to return an optional value of this type. If the - /// value cannot be represented by this value, the `None` is returned. - #[inline] - fn from_isize(n: isize) -> Option<Self> { - FromPrimitive::from_i64(n as i64) - } - - /// Converts an `i8` to return an optional value of this type. If the - /// type cannot be represented by this value, the `None` is returned. - #[inline] - fn from_i8(n: i8) -> Option<Self> { - FromPrimitive::from_i64(n as i64) - } - - /// Converts an `i16` to return an optional value of this type. If the - /// type cannot be represented by this value, the `None` is returned. - #[inline] - fn from_i16(n: i16) -> Option<Self> { - FromPrimitive::from_i64(n as i64) - } - - /// Converts an `i32` to return an optional value of this type. If the - /// type cannot be represented by this value, the `None` is returned. - #[inline] - fn from_i32(n: i32) -> Option<Self> { - FromPrimitive::from_i64(n as i64) - } - - /// Converts an `i64` to return an optional value of this type. If the - /// type cannot be represented by this value, the `None` is returned. - fn from_i64(n: i64) -> Option<Self>; - - /// Converts an `usize` to return an optional value of this type. If the - /// type cannot be represented by this value, the `None` is returned. - #[inline] - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0", reason = "use from_usize")] - fn from_uint(n: usize) -> Option<Self> { - FromPrimitive::from_u64(n as u64) - } - - /// Converts a `usize` to return an optional value of this type. If the - /// type cannot be represented by this value, the `None` is returned. - #[inline] - fn from_usize(n: usize) -> Option<Self> { - FromPrimitive::from_u64(n as u64) - } - - /// Converts an `u8` to return an optional value of this type. If the - /// type cannot be represented by this value, the `None` is returned. - #[inline] - fn from_u8(n: u8) -> Option<Self> { - FromPrimitive::from_u64(n as u64) - } - - /// Converts an `u16` to return an optional value of this type. If the - /// type cannot be represented by this value, the `None` is returned. - #[inline] - fn from_u16(n: u16) -> Option<Self> { - FromPrimitive::from_u64(n as u64) - } - - /// Converts an `u32` to return an optional value of this type. If the - /// type cannot be represented by this value, the `None` is returned. - #[inline] - fn from_u32(n: u32) -> Option<Self> { - FromPrimitive::from_u64(n as u64) - } - - /// Converts an `u64` to return an optional value of this type. If the - /// type cannot be represented by this value, the `None` is returned. - fn from_u64(n: u64) -> Option<Self>; - - /// Converts a `f32` to return an optional value of this type. If the - /// type cannot be represented by this value, the `None` is returned. - #[inline] - fn from_f32(n: f32) -> Option<Self> { - FromPrimitive::from_f64(n as f64) - } - - /// Converts a `f64` to return an optional value of this type. If the - /// type cannot be represented by this value, the `None` is returned. - #[inline] - fn from_f64(n: f64) -> Option<Self> { - FromPrimitive::from_i64(n as i64) - } -} - -/// A utility function that just calls `FromPrimitive::from_int`. -#[unstable(feature = "core", reason = "likely to be removed")] -#[deprecated(since = "1.0.0", reason = "use from_isize")] -pub fn from_int<A: FromPrimitive>(n: isize) -> Option<A> { - FromPrimitive::from_isize(n) -} - -/// A utility function that just calls `FromPrimitive::from_isize`. -#[unstable(feature = "core", reason = "likely to be removed")] -pub fn from_isize<A: FromPrimitive>(n: isize) -> Option<A> { - FromPrimitive::from_isize(n) -} - -/// A utility function that just calls `FromPrimitive::from_i8`. -#[unstable(feature = "core", reason = "likely to be removed")] -pub fn from_i8<A: FromPrimitive>(n: i8) -> Option<A> { - FromPrimitive::from_i8(n) -} - -/// A utility function that just calls `FromPrimitive::from_i16`. -#[unstable(feature = "core", reason = "likely to be removed")] -pub fn from_i16<A: FromPrimitive>(n: i16) -> Option<A> { - FromPrimitive::from_i16(n) -} - -/// A utility function that just calls `FromPrimitive::from_i32`. -#[unstable(feature = "core", reason = "likely to be removed")] -pub fn from_i32<A: FromPrimitive>(n: i32) -> Option<A> { - FromPrimitive::from_i32(n) -} - -/// A utility function that just calls `FromPrimitive::from_i64`. -#[unstable(feature = "core", reason = "likely to be removed")] -pub fn from_i64<A: FromPrimitive>(n: i64) -> Option<A> { - FromPrimitive::from_i64(n) -} - -/// A utility function that just calls `FromPrimitive::from_uint`. -#[unstable(feature = "core", reason = "likely to be removed")] -#[deprecated(since = "1.0.0", reason = "use from_uint")] -pub fn from_uint<A: FromPrimitive>(n: usize) -> Option<A> { - FromPrimitive::from_usize(n) -} - -/// A utility function that just calls `FromPrimitive::from_usize`. -#[unstable(feature = "core", reason = "likely to be removed")] -pub fn from_usize<A: FromPrimitive>(n: usize) -> Option<A> { - FromPrimitive::from_usize(n) -} - -/// A utility function that just calls `FromPrimitive::from_u8`. -#[unstable(feature = "core", reason = "likely to be removed")] -pub fn from_u8<A: FromPrimitive>(n: u8) -> Option<A> { - FromPrimitive::from_u8(n) -} - -/// A utility function that just calls `FromPrimitive::from_u16`. -#[unstable(feature = "core", reason = "likely to be removed")] -pub fn from_u16<A: FromPrimitive>(n: u16) -> Option<A> { - FromPrimitive::from_u16(n) -} - -/// A utility function that just calls `FromPrimitive::from_u32`. -#[unstable(feature = "core", reason = "likely to be removed")] -pub fn from_u32<A: FromPrimitive>(n: u32) -> Option<A> { - FromPrimitive::from_u32(n) -} - -/// A utility function that just calls `FromPrimitive::from_u64`. -#[unstable(feature = "core", reason = "likely to be removed")] -pub fn from_u64<A: FromPrimitive>(n: u64) -> Option<A> { - FromPrimitive::from_u64(n) -} - -/// A utility function that just calls `FromPrimitive::from_f32`. -#[unstable(feature = "core", reason = "likely to be removed")] -pub fn from_f32<A: FromPrimitive>(n: f32) -> Option<A> { - FromPrimitive::from_f32(n) -} - -/// A utility function that just calls `FromPrimitive::from_f64`. -#[unstable(feature = "core", reason = "likely to be removed")] -pub fn from_f64<A: FromPrimitive>(n: f64) -> Option<A> { - FromPrimitive::from_f64(n) -} - -macro_rules! impl_from_primitive { - ($T:ty, $to_ty:ident) => ( - #[allow(deprecated)] - impl FromPrimitive for $T { - #[inline] fn from_int(n: isize) -> Option<$T> { n.$to_ty() } - #[inline] fn from_i8(n: i8) -> Option<$T> { n.$to_ty() } - #[inline] fn from_i16(n: i16) -> Option<$T> { n.$to_ty() } - #[inline] fn from_i32(n: i32) -> Option<$T> { n.$to_ty() } - #[inline] fn from_i64(n: i64) -> Option<$T> { n.$to_ty() } - - #[inline] fn from_uint(n: usize) -> Option<$T> { n.$to_ty() } - #[inline] fn from_u8(n: u8) -> Option<$T> { n.$to_ty() } - #[inline] fn from_u16(n: u16) -> Option<$T> { n.$to_ty() } - #[inline] fn from_u32(n: u32) -> Option<$T> { n.$to_ty() } - #[inline] fn from_u64(n: u64) -> Option<$T> { n.$to_ty() } - - #[inline] fn from_f32(n: f32) -> Option<$T> { n.$to_ty() } - #[inline] fn from_f64(n: f64) -> Option<$T> { n.$to_ty() } - } - ) -} - -impl_from_primitive! { isize, to_int } -impl_from_primitive! { i8, to_i8 } -impl_from_primitive! { i16, to_i16 } -impl_from_primitive! { i32, to_i32 } -impl_from_primitive! { i64, to_i64 } -impl_from_primitive! { usize, to_uint } -impl_from_primitive! { u8, to_u8 } -impl_from_primitive! { u16, to_u16 } -impl_from_primitive! { u32, to_u32 } -impl_from_primitive! { u64, to_u64 } -impl_from_primitive! { f32, to_f32 } -impl_from_primitive! { f64, to_f64 } - -/// Casts from one machine scalar to another. -/// -/// # Examples -/// -/// ``` -/// # #![feature(core)] -/// use std::num; -/// -/// let twenty: f32 = num::cast(0x14).unwrap(); -/// assert_eq!(twenty, 20f32); -/// ``` -/// -#[inline] -#[unstable(feature = "core", reason = "likely to be removed")] -pub fn cast<T: NumCast,U: NumCast>(n: T) -> Option<U> { - NumCast::from(n) -} - -/// An interface for casting between machine scalars. -#[unstable(feature = "core", reason = "trait is likely to be removed")] -pub trait NumCast: ToPrimitive { - /// Creates a number from another value that can be converted into a primitive via the - /// `ToPrimitive` trait. - fn from<T: ToPrimitive>(n: T) -> Option<Self>; -} - -macro_rules! impl_num_cast { - ($T:ty, $conv:ident) => ( - impl NumCast for $T { - #[inline] - #[allow(deprecated)] - fn from<N: ToPrimitive>(n: N) -> Option<$T> { - // `$conv` could be generated using `concat_idents!`, but that - // macro seems to be broken at the moment - n.$conv() - } - } - ) -} - -impl_num_cast! { u8, to_u8 } -impl_num_cast! { u16, to_u16 } -impl_num_cast! { u32, to_u32 } -impl_num_cast! { u64, to_u64 } -impl_num_cast! { usize, to_uint } -impl_num_cast! { i8, to_i8 } -impl_num_cast! { i16, to_i16 } -impl_num_cast! { i32, to_i32 } -impl_num_cast! { i64, to_i64 } -impl_num_cast! { isize, to_int } -impl_num_cast! { f32, to_f32 } -impl_num_cast! { f64, to_f64 } - /// Used for representing the classification of floating point numbers #[derive(Copy, Clone, PartialEq, Debug)] #[stable(feature = "rust1", since = "1.0.0")] @@ -2602,93 +1238,22 @@ pub enum FpCategory { } /// A built-in floating point number. -// FIXME(#5527): In a future version of Rust, many of these functions will -// become constants. -// -// FIXME(#8888): Several of these functions have a parameter named -// `unused_self`. Removing it requires #8888 to be fixed. -#[unstable(feature = "core", - reason = "distribution of methods between core/std is unclear")] #[doc(hidden)] -pub trait Float - : Copy + Clone - + NumCast - + PartialOrd - + PartialEq - + Neg<Output=Self> - + Add<Output=Self> - + Sub<Output=Self> - + Mul<Output=Self> - + Div<Output=Self> - + Rem<Output=Self> -{ +pub trait Float { /// Returns the NaN value. fn nan() -> Self; /// Returns the infinite value. fn infinity() -> Self; /// Returns the negative infinite value. fn neg_infinity() -> Self; - /// Returns the `0` value. - fn zero() -> Self; /// Returns -0.0. fn neg_zero() -> Self; - /// Returns the `1` value. + /// Returns 0.0. + fn zero() -> Self; + /// Returns 1.0. fn one() -> Self; - - // FIXME (#5527): These should be associated constants - - /// Returns the number of binary digits of mantissa that this type supports. - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0", - reason = "use `std::f32::MANTISSA_DIGITS` or \ - `std::f64::MANTISSA_DIGITS` as appropriate")] - fn mantissa_digits(unused_self: Option<Self>) -> usize; - /// Returns the number of base-10 digits of precision that this type supports. - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0", - reason = "use `std::f32::DIGITS` or `std::f64::DIGITS` as appropriate")] - fn digits(unused_self: Option<Self>) -> usize; - /// Returns the difference between 1.0 and the smallest representable number larger than 1.0. - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0", - reason = "use `std::f32::EPSILON` or `std::f64::EPSILON` as appropriate")] - fn epsilon() -> Self; - /// Returns the minimum binary exponent that this type can represent. - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0", - reason = "use `std::f32::MIN_EXP` or `std::f64::MIN_EXP` as appropriate")] - fn min_exp(unused_self: Option<Self>) -> isize; - /// Returns the maximum binary exponent that this type can represent. - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0", - reason = "use `std::f32::MAX_EXP` or `std::f64::MAX_EXP` as appropriate")] - fn max_exp(unused_self: Option<Self>) -> isize; - /// Returns the minimum base-10 exponent that this type can represent. - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0", - reason = "use `std::f32::MIN_10_EXP` or `std::f64::MIN_10_EXP` as appropriate")] - fn min_10_exp(unused_self: Option<Self>) -> isize; - /// Returns the maximum base-10 exponent that this type can represent. - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0", - reason = "use `std::f32::MAX_10_EXP` or `std::f64::MAX_10_EXP` as appropriate")] - fn max_10_exp(unused_self: Option<Self>) -> isize; - /// Returns the smallest finite value that this type can represent. - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0", - reason = "use `std::f32::MIN` or `std::f64::MIN` as appropriate")] - fn min_value() -> Self; - /// Returns the smallest normalized positive number that this type can represent. - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0", - reason = "use `std::f32::MIN_POSITIVE` or \ - `std::f64::MIN_POSITIVE` as appropriate")] - fn min_pos_value(unused_self: Option<Self>) -> Self; - /// Returns the largest finite value that this type can represent. - #[unstable(feature = "core")] - #[deprecated(since = "1.0.0", - reason = "use `std::f32::MAX` or `std::f64::MAX` as appropriate")] - fn max_value() -> Self; + /// Parses the string `s` with the radix `r` as a float. + fn from_str_radix(s: &str, r: u32) -> Result<Self, ParseFloatError>; /// Returns true if this value is NaN and false otherwise. fn is_nan(self) -> bool; @@ -2705,16 +1270,16 @@ pub trait Float /// Returns the mantissa, exponent and sign as integers, respectively. fn integer_decode(self) -> (u64, i16, i8); - /// Returns the largest integer less than or equal to a number. + /// Return the largest integer less than or equal to a number. fn floor(self) -> Self; - /// Returns the smallest integer greater than or equal to a number. + /// Return the smallest integer greater than or equal to a number. fn ceil(self) -> Self; - /// Returns the nearest integer to a number. Round half-way cases away from + /// Return the nearest integer to a number. Round half-way cases away from /// `0.0`. fn round(self) -> Self; - /// Returns the integer part of a number. + /// Return the integer part of a number. fn trunc(self) -> Self; - /// Returns the fractional part of a number. + /// Return the fractional part of a number. fn fract(self) -> Self; /// Computes the absolute value of `self`. Returns `Float::nan()` if the @@ -2737,21 +1302,21 @@ pub trait Float /// error. This produces a more accurate result with better performance than /// a separate multiplication operation followed by an add. fn mul_add(self, a: Self, b: Self) -> Self; - /// Takes the reciprocal (inverse) of a number, `1/x`. + /// Take the reciprocal (inverse) of a number, `1/x`. fn recip(self) -> Self; - /// Raises a number to an integer power. + /// Raise a number to an integer power. /// /// Using this function is generally faster than using `powf` fn powi(self, n: i32) -> Self; - /// Raises a number to a floating point power. + /// Raise a number to a floating point power. fn powf(self, n: Self) -> Self; - /// Takes the square root of a number. + /// Take the square root of a number. /// /// Returns NaN if `self` is a negative number. fn sqrt(self) -> Self; - /// Takes the reciprocal (inverse) square root of a number, `1/sqrt(x)`. + /// Take the reciprocal (inverse) square root of a number, `1/sqrt(x)`. fn rsqrt(self) -> Self; /// Returns `e^(self)`, (the exponential function). @@ -2767,39 +1332,14 @@ pub trait Float /// Returns the base 10 logarithm of the number. fn log10(self) -> Self; - /// Converts radians to degrees. + /// Convert radians to degrees. fn to_degrees(self) -> Self; - /// Converts degrees to radians. + /// Convert degrees to radians. fn to_radians(self) -> Self; } -/// A generic trait for converting a string with a radix (base) to a value -#[unstable(feature = "core", reason = "needs reevaluation")] -#[deprecated(since = "1.0.0", - reason = "moved to inherent methods; use e.g. i32::from_str_radix")] -pub trait FromStrRadix { - #[unstable(feature = "core", reason = "needs reevaluation")] - #[deprecated(since = "1.0.0", reason = "moved to inherent methods")] - type Err; - - #[unstable(feature = "core", reason = "needs reevaluation")] - #[deprecated(since = "1.0.0", - reason = "moved to inherent methods; use e.g. i32::from_str_radix")] - #[allow(deprecated)] - fn from_str_radix(str: &str, radix: u32) -> Result<Self, Self::Err>; -} - -/// A utility function that just calls `FromStrRadix::from_str_radix`. -#[unstable(feature = "core", reason = "needs reevaluation")] -#[deprecated(since = "1.0.0", reason = "use e.g. i32::from_str_radix")] -#[allow(deprecated)] -pub fn from_str_radix<T: FromStrRadix>(str: &str, radix: u32) - -> Result<T, T::Err> { - FromStrRadix::from_str_radix(str, radix) -} - -macro_rules! from_str_radix_float_impl { - ($T:ty) => { +macro_rules! from_str_float_impl { + ($T:ident) => { #[stable(feature = "rust1", since = "1.0.0")] impl FromStr for $T { type Err = ParseFloatError; @@ -2827,265 +1367,113 @@ macro_rules! from_str_radix_float_impl { /// /// # Return value /// - /// `Err(ParseFloatError)` if the string did not represent a valid number. - /// Otherwise, `Ok(n)` where `n` is the floating-point number represented by `src`. + /// `Err(ParseFloatError)` if the string did not represent a valid + /// number. Otherwise, `Ok(n)` where `n` is the floating-point + /// number represented by `src`. #[inline] #[allow(deprecated)] fn from_str(src: &str) -> Result<$T, ParseFloatError> { - from_str_radix(src, 10) - } - } - - #[stable(feature = "rust1", since = "1.0.0")] - #[allow(deprecated)] - impl FromStrRadix for $T { - type Err = ParseFloatError; - - /// Converts a string in a given base to a float. - /// - /// Due to possible conflicts, this function does **not** accept - /// the special values `inf`, `-inf`, `+inf` and `NaN`, **nor** - /// does it recognize exponents of any kind. - /// - /// Leading and trailing whitespace represent an error. - /// - /// # Arguments - /// - /// * src - A string - /// * radix - The base to use. Must lie in the range [2 .. 36] - /// - /// # Return value - /// - /// `Err(ParseFloatError)` if the string did not represent a valid number. - /// Otherwise, `Ok(n)` where `n` is the floating-point number represented by `src`. - fn from_str_radix(src: &str, radix: u32) - -> Result<$T, ParseFloatError> { - use self::FloatErrorKind::*; - use self::ParseFloatError as PFE; - assert!(radix >= 2 && radix <= 36, - "from_str_radix_float: must lie in the range `[2, 36]` - found {}", - radix); - - // Special values - match src { - "inf" => return Ok(Float::infinity()), - "-inf" => return Ok(Float::neg_infinity()), - "NaN" => return Ok(Float::nan()), - _ => {}, - } - - let (is_positive, src) = match src.slice_shift_char() { - None => return Err(PFE { kind: Empty }), - Some(('-', "")) => return Err(PFE { kind: Empty }), - Some(('-', src)) => (false, src), - Some((_, _)) => (true, src), - }; - - // The significand to accumulate - let mut sig = if is_positive { 0.0 } else { -0.0 }; - // Necessary to detect overflow - let mut prev_sig = sig; - let mut cs = src.chars().enumerate(); - // Exponent prefix and exponent index offset - let mut exp_info = None::<(char, usize)>; - - // Parse the integer part of the significand - for (i, c) in cs.by_ref() { - match c.to_digit(radix) { - Some(digit) => { - // shift significand one digit left - sig = sig * (radix as $T); - - // add/subtract current digit depending on sign - if is_positive { - sig = sig + ((digit as isize) as $T); - } else { - sig = sig - ((digit as isize) as $T); - } - - // Detect overflow by comparing to last value, except - // if we've not seen any non-zero digits. - if prev_sig != 0.0 { - if is_positive && sig <= prev_sig - { return Ok(Float::infinity()); } - if !is_positive && sig >= prev_sig - { return Ok(Float::neg_infinity()); } - - // Detect overflow by reversing the shift-and-add process - if is_positive && (prev_sig != (sig - digit as $T) / radix as $T) - { return Ok(Float::infinity()); } - if !is_positive && (prev_sig != (sig + digit as $T) / radix as $T) - { return Ok(Float::neg_infinity()); } - } - prev_sig = sig; - }, - None => match c { - 'e' | 'E' | 'p' | 'P' => { - exp_info = Some((c, i + 1)); - break; // start of exponent - }, - '.' => { - break; // start of fractional part - }, - _ => { - return Err(PFE { kind: Invalid }); - }, - }, - } - } - - // If we are not yet at the exponent parse the fractional - // part of the significand - if exp_info.is_none() { - let mut power = 1.0; - for (i, c) in cs.by_ref() { - match c.to_digit(radix) { - Some(digit) => { - // Decrease power one order of magnitude - power = power / (radix as $T); - // add/subtract current digit depending on sign - sig = if is_positive { - sig + (digit as $T) * power - } else { - sig - (digit as $T) * power - }; - // Detect overflow by comparing to last value - if is_positive && sig < prev_sig - { return Ok(Float::infinity()); } - if !is_positive && sig > prev_sig - { return Ok(Float::neg_infinity()); } - prev_sig = sig; - }, - None => match c { - 'e' | 'E' | 'p' | 'P' => { - exp_info = Some((c, i + 1)); - break; // start of exponent - }, - _ => { - return Err(PFE { kind: Invalid }); - }, - }, - } - } - } - - // Parse and calculate the exponent - let exp = match exp_info { - Some((c, offset)) => { - let base = match c { - 'E' | 'e' if radix == 10 => 10.0, - 'P' | 'p' if radix == 16 => 2.0, - _ => return Err(PFE { kind: Invalid }), - }; - - // Parse the exponent as decimal integer - let src = &src[offset..]; - let (is_positive, exp) = match src.slice_shift_char() { - Some(('-', src)) => (false, src.parse::<usize>()), - Some(('+', src)) => (true, src.parse::<usize>()), - Some((_, _)) => (true, src.parse::<usize>()), - None => return Err(PFE { kind: Invalid }), - }; - - match (is_positive, exp) { - (true, Ok(exp)) => base.powi(exp as i32), - (false, Ok(exp)) => 1.0 / base.powi(exp as i32), - (_, Err(_)) => return Err(PFE { kind: Invalid }), - } - }, - None => 1.0, // no exponent - }; - - Ok(sig * exp) + $T::from_str_radix(src, 10) } } } } -from_str_radix_float_impl! { f32 } -from_str_radix_float_impl! { f64 } +from_str_float_impl!(f32); +from_str_float_impl!(f64); macro_rules! from_str_radix_int_impl { - ($T:ty) => { + ($($T:ident)*) => {$( #[stable(feature = "rust1", since = "1.0.0")] #[allow(deprecated)] impl FromStr for $T { type Err = ParseIntError; - #[inline] fn from_str(src: &str) -> Result<$T, ParseIntError> { from_str_radix(src, 10) } } + )*} +} +from_str_radix_int_impl! { isize i8 i16 i32 i64 usize u8 u16 u32 u64 } - #[stable(feature = "rust1", since = "1.0.0")] - #[allow(deprecated)] - impl FromStrRadix for $T { - type Err = ParseIntError; - fn from_str_radix(src: &str, radix: u32) - -> Result<$T, ParseIntError> { - use self::IntErrorKind::*; - use self::ParseIntError as PIE; - assert!(radix >= 2 && radix <= 36, - "from_str_radix_int: must lie in the range `[2, 36]` - found {}", - radix); - - let is_signed_ty = (0 as $T) > Int::min_value(); - - match src.slice_shift_char() { - Some(('-', "")) => Err(PIE { kind: Empty }), - Some(('-', src)) if is_signed_ty => { - // The number is negative - let mut result = 0; - for c in src.chars() { - let x = match c.to_digit(radix) { - Some(x) => x, - None => return Err(PIE { kind: InvalidDigit }), - }; - result = match result.checked_mul(radix as $T) { - Some(result) => result, - None => return Err(PIE { kind: Underflow }), - }; - result = match result.checked_sub(x as $T) { - Some(result) => result, - None => return Err(PIE { kind: Underflow }), - }; - } - Ok(result) - }, - Some((_, _)) => { - // The number is signed - let mut result = 0; - for c in src.chars() { - let x = match c.to_digit(radix) { - Some(x) => x, - None => return Err(PIE { kind: InvalidDigit }), - }; - result = match result.checked_mul(radix as $T) { - Some(result) => result, - None => return Err(PIE { kind: Overflow }), - }; - result = match result.checked_add(x as $T) { - Some(result) => result, - None => return Err(PIE { kind: Overflow }), - }; - } - Ok(result) - }, - None => Err(ParseIntError { kind: Empty }), - } +#[doc(hidden)] +trait FromStrRadixHelper: PartialOrd + Copy { + fn min_value() -> Self; + fn from_u32(u: u32) -> Self; + fn checked_mul(&self, other: u32) -> Option<Self>; + fn checked_sub(&self, other: u32) -> Option<Self>; + fn checked_add(&self, other: u32) -> Option<Self>; +} + +macro_rules! doit { + ($($t:ident)*) => ($(impl FromStrRadixHelper for $t { + fn min_value() -> Self { <$t>::min_value() } + fn from_u32(u: u32) -> Self { u as $t } + fn checked_mul(&self, other: u32) -> Option<Self> { + <$t>::checked_mul(*self, other as $t) + } + fn checked_sub(&self, other: u32) -> Option<Self> { + <$t>::checked_sub(*self, other as $t) + } + fn checked_add(&self, other: u32) -> Option<Self> { + <$t>::checked_add(*self, other as $t) + } + })*) +} +doit! { i8 i16 i32 i64 isize u8 u16 u32 u64 usize } + +fn from_str_radix<T: FromStrRadixHelper>(src: &str, radix: u32) + -> Result<T, ParseIntError> { + use self::IntErrorKind::*; + use self::ParseIntError as PIE; + assert!(radix >= 2 && radix <= 36, + "from_str_radix_int: must lie in the range `[2, 36]` - found {}", + radix); + + let is_signed_ty = T::from_u32(0) > T::min_value(); + + match src.slice_shift_char() { + Some(('-', "")) => Err(PIE { kind: Empty }), + Some(('-', src)) if is_signed_ty => { + // The number is negative + let mut result = T::from_u32(0); + for c in src.chars() { + let x = match c.to_digit(radix) { + Some(x) => x, + None => return Err(PIE { kind: InvalidDigit }), + }; + result = match result.checked_mul(radix) { + Some(result) => result, + None => return Err(PIE { kind: Underflow }), + }; + result = match result.checked_sub(x) { + Some(result) => result, + None => return Err(PIE { kind: Underflow }), + }; } - } + Ok(result) + }, + Some((_, _)) => { + // The number is signed + let mut result = T::from_u32(0); + for c in src.chars() { + let x = match c.to_digit(radix) { + Some(x) => x, + None => return Err(PIE { kind: InvalidDigit }), + }; + result = match result.checked_mul(radix) { + Some(result) => result, + None => return Err(PIE { kind: Overflow }), + }; + result = match result.checked_add(x) { + Some(result) => result, + None => return Err(PIE { kind: Overflow }), + }; + } + Ok(result) + }, + None => Err(ParseIntError { kind: Empty }), } } -from_str_radix_int_impl! { isize } -from_str_radix_int_impl! { i8 } -from_str_radix_int_impl! { i16 } -from_str_radix_int_impl! { i32 } -from_str_radix_int_impl! { i64 } -from_str_radix_int_impl! { usize } -from_str_radix_int_impl! { u8 } -from_str_radix_int_impl! { u16 } -from_str_radix_int_impl! { u32 } -from_str_radix_int_impl! { u64 } /// An error which can be returned when parsing an integer. #[derive(Debug, Clone, PartialEq)] @@ -3121,11 +1509,10 @@ impl fmt::Display for ParseIntError { /// An error which can be returned when parsing a float. #[derive(Debug, Clone, PartialEq)] -#[stable(feature = "rust1", since = "1.0.0")] -pub struct ParseFloatError { kind: FloatErrorKind } +pub struct ParseFloatError { pub kind: FloatErrorKind } #[derive(Debug, Clone, PartialEq)] -enum FloatErrorKind { +pub enum FloatErrorKind { Empty, Invalid, } diff --git a/src/libcore/num/wrapping.rs b/src/libcore/num/wrapping.rs index aa84708816b..b7ca497db18 100644 --- a/src/libcore/num/wrapping.rs +++ b/src/libcore/num/wrapping.rs @@ -15,8 +15,6 @@ use super::Wrapping; use ops::*; -use intrinsics::{overflowing_add, overflowing_sub, overflowing_mul}; - use intrinsics::{i8_add_with_overflow, u8_add_with_overflow}; use intrinsics::{i16_add_with_overflow, u16_add_with_overflow}; use intrinsics::{i32_add_with_overflow, u32_add_with_overflow}; @@ -33,14 +31,6 @@ use intrinsics::{i64_mul_with_overflow, u64_mul_with_overflow}; use ::{i8,i16,i32,i64}; #[unstable(feature = "core", reason = "may be removed, renamed, or relocated")] -#[deprecated(since = "1.0.0", reason = "moved to inherent methods")] -pub trait WrappingOps { - fn wrapping_add(self, rhs: Self) -> Self; - fn wrapping_sub(self, rhs: Self) -> Self; - fn wrapping_mul(self, rhs: Self) -> Self; -} - -#[unstable(feature = "core", reason = "may be removed, renamed, or relocated")] pub trait OverflowingOps { fn overflowing_add(self, rhs: Self) -> (Self, bool); fn overflowing_sub(self, rhs: Self) -> (Self, bool); @@ -99,27 +89,6 @@ sh_impl_all! { u8 u16 u32 u64 usize i8 i16 i32 i64 isize } macro_rules! wrapping_impl { ($($t:ty)*) => ($( - impl WrappingOps for $t { - #[inline(always)] - fn wrapping_add(self, rhs: $t) -> $t { - unsafe { - overflowing_add(self, rhs) - } - } - #[inline(always)] - fn wrapping_sub(self, rhs: $t) -> $t { - unsafe { - overflowing_sub(self, rhs) - } - } - #[inline(always)] - fn wrapping_mul(self, rhs: $t) -> $t { - unsafe { - overflowing_mul(self, rhs) - } - } - } - #[stable(feature = "rust1", since = "1.0.0")] impl Add for Wrapping<$t> { type Output = Wrapping<$t>; diff --git a/src/libcore/result.rs b/src/libcore/result.rs index 17edce56e2b..e909946ece4 100644 --- a/src/libcore/result.rs +++ b/src/libcore/result.rs @@ -234,8 +234,6 @@ use fmt; use iter::{Iterator, DoubleEndedIterator, FromIterator, ExactSizeIterator, IntoIterator}; use ops::{FnMut, FnOnce}; use option::Option::{self, None, Some}; -#[allow(deprecated)] -use slice::AsSlice; use slice; /// `Result` is a type that represents either success (`Ok`) or failure (`Err`). @@ -768,26 +766,6 @@ impl<T: fmt::Debug, E> Result<T, E> { // Trait implementations ///////////////////////////////////////////////////////////////////////////// -#[unstable(feature = "core", - reason = "waiting on the stability of the trait itself")] -#[deprecated(since = "1.0.0", - reason = "use inherent method instead")] -#[allow(deprecated)] -impl<T, E> AsSlice<T> for Result<T, E> { - /// Converts from `Result<T, E>` to `&[T]` (without copying) - #[inline] - fn as_slice<'a>(&'a self) -> &'a [T] { - match *self { - Ok(ref x) => slice::ref_slice(x), - Err(_) => { - // work around lack of implicit coercion from fixed-size array to slice - let emp: &[_] = &[]; - emp - } - } - } -} - #[stable(feature = "rust1", since = "1.0.0")] impl<T, E> IntoIterator for Result<T, E> { type Item = T; diff --git a/src/libcore/slice.rs b/src/libcore/slice.rs index 4b1742a4348..1e96d761d40 100644 --- a/src/libcore/slice.rs +++ b/src/libcore/slice.rs @@ -51,7 +51,7 @@ use result::Result::{Ok, Err}; use ptr; use mem; use mem::size_of; -use marker::{Send, Sized, Sync, self}; +use marker::{Send, Sync, self}; use raw::Repr; // Avoid conflicts with *both* the Slice trait (buggy) and the `slice::raw` module. use raw::Slice as RawSlice; @@ -595,37 +595,6 @@ impl<T> ops::IndexMut<RangeFull> for [T] { // Common traits //////////////////////////////////////////////////////////////////////////////// -/// Data that is viewable as a slice. -#[unstable(feature = "core", - reason = "will be replaced by slice syntax")] -#[deprecated(since = "1.0.0", - reason = "use std::convert::AsRef<[T]> instead")] -pub trait AsSlice<T> { - /// Work with `self` as a slice. - fn as_slice<'a>(&'a self) -> &'a [T]; -} - -#[unstable(feature = "core", reason = "trait is experimental")] -#[allow(deprecated)] -impl<T> AsSlice<T> for [T] { - #[inline(always)] - fn as_slice<'a>(&'a self) -> &'a [T] { self } -} - -#[unstable(feature = "core", reason = "trait is experimental")] -#[allow(deprecated)] -impl<'a, T, U: ?Sized + AsSlice<T>> AsSlice<T> for &'a U { - #[inline(always)] - fn as_slice(&self) -> &[T] { AsSlice::as_slice(*self) } -} - -#[unstable(feature = "core", reason = "trait is experimental")] -#[allow(deprecated)] -impl<'a, T, U: ?Sized + AsSlice<T>> AsSlice<T> for &'a mut U { - #[inline(always)] - fn as_slice(&self) -> &[T] { AsSlice::as_slice(*self) } -} - #[stable(feature = "rust1", since = "1.0.0")] impl<'a, T> Default for &'a [T] { #[stable(feature = "rust1", since = "1.0.0")] diff --git a/src/libcore/str/mod.rs b/src/libcore/str/mod.rs index 9c3ab001187..4d343ea0f1e 100644 --- a/src/libcore/str/mod.rs +++ b/src/libcore/str/mod.rs @@ -25,7 +25,6 @@ use default::Default; use fmt; use iter::ExactSizeIterator; use iter::{Map, Iterator, DoubleEndedIterator}; -use marker::Sized; use mem; use ops::{Fn, FnMut, FnOnce}; use option::Option::{self, None, Some}; @@ -1463,30 +1462,6 @@ mod traits { } } -/// Any string that can be represented as a slice -#[unstable(feature = "core", - reason = "Instead of taking this bound generically, this trait will be \ - replaced with one of slicing syntax (&foo[..]), deref coercions, or \ - a more generic conversion trait")] -#[deprecated(since = "1.0.0", - reason = "use std::convert::AsRef<str> instead")] -pub trait Str { - /// Work with `self` as a slice. - fn as_slice<'a>(&'a self) -> &'a str; -} - -#[allow(deprecated)] -impl Str for str { - #[inline] - fn as_slice<'a>(&'a self) -> &'a str { self } -} - -#[allow(deprecated)] -impl<'a, S: ?Sized> Str for &'a S where S: Str { - #[inline] - fn as_slice(&self) -> &str { Str::as_slice(*self) } -} - /// Methods for string slices #[allow(missing_docs)] #[doc(hidden)] diff --git a/src/libcoretest/cmp.rs b/src/libcoretest/cmp.rs index 9ed1508c3eb..e0d396c68b4 100644 --- a/src/libcoretest/cmp.rs +++ b/src/libcoretest/cmp.rs @@ -110,8 +110,6 @@ fn test_partial_max() { #[test] fn test_user_defined_eq() { - use core::num::SignedInt; - // Our type. struct SketchyNum { num : isize diff --git a/src/libcoretest/iter.rs b/src/libcoretest/iter.rs index a56820c61cc..2866c193c3b 100644 --- a/src/libcoretest/iter.rs +++ b/src/libcoretest/iter.rs @@ -11,7 +11,6 @@ use core::iter::*; use core::iter::order::*; use core::iter::MinMaxResult::*; -use core::num::SignedInt; use core::usize; use core::cmp; @@ -784,16 +783,6 @@ fn test_range_step() { } #[test] -fn test_range_step_inclusive() { - assert_eq!(range_step_inclusive(0, 20, 5).collect::<Vec<isize>>(), [0, 5, 10, 15, 20]); - assert_eq!(range_step_inclusive(20, 0, -5).collect::<Vec<isize>>(), [20, 15, 10, 5, 0]); - assert_eq!(range_step_inclusive(20, 0, -6).collect::<Vec<isize>>(), [20, 14, 8, 2]); - assert_eq!(range_step_inclusive(200, 255, 50).collect::<Vec<u8>>(), [200, 250]); - assert_eq!(range_step_inclusive(200, -5, 1).collect::<Vec<isize>>(), []); - assert_eq!(range_step_inclusive(200, 200, 1).collect::<Vec<isize>>(), [200]); -} - -#[test] fn test_reverse() { let mut ys = [1, 2, 3, 4, 5]; ys.iter_mut().reverse_in_place(); diff --git a/src/libcoretest/lib.rs b/src/libcoretest/lib.rs index 6059e49df19..e0e8e46af6c 100644 --- a/src/libcoretest/lib.rs +++ b/src/libcoretest/lib.rs @@ -10,8 +10,8 @@ // Do not remove on snapshot creation. Needed for bootstrap. (Issue #22364) #![cfg_attr(stage0, feature(custom_attribute))] + #![feature(box_syntax)] -#![feature(int_uint)] #![feature(unboxed_closures)] #![feature(unsafe_destructor)] #![feature(core)] @@ -21,13 +21,11 @@ #![feature(std_misc)] #![feature(libc)] #![feature(hash)] -#![feature(io)] -#![feature(collections)] #![feature(debug_builders)] #![feature(unique)] #![feature(step_by)] #![feature(slice_patterns)] -#![allow(deprecated)] // rand +#![feature(float_from_str_radix)] extern crate core; extern crate test; diff --git a/src/libcoretest/num/int_macros.rs b/src/libcoretest/num/int_macros.rs index cb2359873e9..b1c8aec3c35 100644 --- a/src/libcoretest/num/int_macros.rs +++ b/src/libcoretest/num/int_macros.rs @@ -8,12 +8,11 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. -macro_rules! int_module { ($T:ty, $T_i:ident) => ( +macro_rules! int_module { ($T:ident, $T_i:ident) => ( #[cfg(test)] mod tests { use core::$T_i::*; use core::isize; - use core::num::{FromStrRadix, Int, SignedInt}; use core::ops::{Shl, Shr, Not, BitXor, BitAnd, BitOr}; use num; @@ -129,30 +128,30 @@ mod tests { #[test] fn test_le() { - assert_eq!(Int::from_le(A.to_le()), A); - assert_eq!(Int::from_le(B.to_le()), B); - assert_eq!(Int::from_le(C.to_le()), C); - assert_eq!(Int::from_le(_0), _0); - assert_eq!(Int::from_le(_1), _1); + assert_eq!($T::from_le(A.to_le()), A); + assert_eq!($T::from_le(B.to_le()), B); + assert_eq!($T::from_le(C.to_le()), C); + assert_eq!($T::from_le(_0), _0); + assert_eq!($T::from_le(_1), _1); assert_eq!(_0.to_le(), _0); assert_eq!(_1.to_le(), _1); } #[test] fn test_be() { - assert_eq!(Int::from_be(A.to_be()), A); - assert_eq!(Int::from_be(B.to_be()), B); - assert_eq!(Int::from_be(C.to_be()), C); - assert_eq!(Int::from_be(_0), _0); - assert_eq!(Int::from_be(_1), _1); + assert_eq!($T::from_be(A.to_be()), A); + assert_eq!($T::from_be(B.to_be()), B); + assert_eq!($T::from_be(C.to_be()), C); + assert_eq!($T::from_be(_0), _0); + assert_eq!($T::from_be(_1), _1); assert_eq!(_0.to_be(), _0); assert_eq!(_1.to_be(), _1); } #[test] fn test_signed_checked_div() { - assert!(10.checked_div(2) == Some(5)); - assert!(5.checked_div(0) == None); + assert!((10 as $T).checked_div(2) == Some(5)); + assert!((5 as $T).checked_div(0) == None); assert!(isize::MIN.checked_div(-1) == None); } @@ -180,26 +179,26 @@ mod tests { #[test] fn test_from_str_radix() { - assert_eq!(FromStrRadix::from_str_radix("123", 10), Ok(123 as $T)); - assert_eq!(FromStrRadix::from_str_radix("1001", 2), Ok(9 as $T)); - assert_eq!(FromStrRadix::from_str_radix("123", 8), Ok(83 as $T)); - assert_eq!(FromStrRadix::from_str_radix("123", 16), Ok(291 as i32)); - assert_eq!(FromStrRadix::from_str_radix("ffff", 16), Ok(65535 as i32)); - assert_eq!(FromStrRadix::from_str_radix("FFFF", 16), Ok(65535 as i32)); - assert_eq!(FromStrRadix::from_str_radix("z", 36), Ok(35 as $T)); - assert_eq!(FromStrRadix::from_str_radix("Z", 36), Ok(35 as $T)); - - assert_eq!(FromStrRadix::from_str_radix("-123", 10), Ok(-123 as $T)); - assert_eq!(FromStrRadix::from_str_radix("-1001", 2), Ok(-9 as $T)); - assert_eq!(FromStrRadix::from_str_radix("-123", 8), Ok(-83 as $T)); - assert_eq!(FromStrRadix::from_str_radix("-123", 16), Ok(-291 as i32)); - assert_eq!(FromStrRadix::from_str_radix("-ffff", 16), Ok(-65535 as i32)); - assert_eq!(FromStrRadix::from_str_radix("-FFFF", 16), Ok(-65535 as i32)); - assert_eq!(FromStrRadix::from_str_radix("-z", 36), Ok(-35 as $T)); - assert_eq!(FromStrRadix::from_str_radix("-Z", 36), Ok(-35 as $T)); - - assert_eq!(FromStrRadix::from_str_radix("Z", 35).ok(), None::<$T>); - assert_eq!(FromStrRadix::from_str_radix("-9", 2).ok(), None::<$T>); + assert_eq!($T::from_str_radix("123", 10), Ok(123 as $T)); + assert_eq!($T::from_str_radix("1001", 2), Ok(9 as $T)); + assert_eq!($T::from_str_radix("123", 8), Ok(83 as $T)); + assert_eq!(i32::from_str_radix("123", 16), Ok(291 as i32)); + assert_eq!(i32::from_str_radix("ffff", 16), Ok(65535 as i32)); + assert_eq!(i32::from_str_radix("FFFF", 16), Ok(65535 as i32)); + assert_eq!($T::from_str_radix("z", 36), Ok(35 as $T)); + assert_eq!($T::from_str_radix("Z", 36), Ok(35 as $T)); + + assert_eq!($T::from_str_radix("-123", 10), Ok(-123 as $T)); + assert_eq!($T::from_str_radix("-1001", 2), Ok(-9 as $T)); + assert_eq!($T::from_str_radix("-123", 8), Ok(-83 as $T)); + assert_eq!(i32::from_str_radix("-123", 16), Ok(-291 as i32)); + assert_eq!(i32::from_str_radix("-ffff", 16), Ok(-65535 as i32)); + assert_eq!(i32::from_str_radix("-FFFF", 16), Ok(-65535 as i32)); + assert_eq!($T::from_str_radix("-z", 36), Ok(-35 as $T)); + assert_eq!($T::from_str_radix("-Z", 36), Ok(-35 as $T)); + + assert_eq!($T::from_str_radix("Z", 35).ok(), None::<$T>); + assert_eq!($T::from_str_radix("-9", 2).ok(), None::<$T>); } #[test] diff --git a/src/libcoretest/num/mod.rs b/src/libcoretest/num/mod.rs index 9087b87f640..85ca547da85 100644 --- a/src/libcoretest/num/mod.rs +++ b/src/libcoretest/num/mod.rs @@ -10,7 +10,6 @@ use core::cmp::PartialEq; use core::fmt::Debug; -use core::num::{NumCast, cast}; use core::ops::{Add, Sub, Mul, Div, Rem}; use core::marker::Copy; @@ -32,18 +31,12 @@ mod u64; /// Helper function for testing numeric operations pub fn test_num<T>(ten: T, two: T) where - T: PartialEq + NumCast + T: PartialEq + Add<Output=T> + Sub<Output=T> + Mul<Output=T> + Div<Output=T> + Rem<Output=T> + Debug + Copy { - assert_eq!(ten.add(two), cast(12).unwrap()); - assert_eq!(ten.sub(two), cast(8).unwrap()); - assert_eq!(ten.mul(two), cast(20).unwrap()); - assert_eq!(ten.div(two), cast(5).unwrap()); - assert_eq!(ten.rem(two), cast(0).unwrap()); - assert_eq!(ten.add(two), ten + two); assert_eq!(ten.sub(two), ten - two); assert_eq!(ten.mul(two), ten * two); @@ -56,33 +49,33 @@ mod test { use core::option::Option; use core::option::Option::{Some, None}; use core::num::Float; - use core::num::from_str_radix; #[test] fn from_str_issue7588() { - let u : Option<u8> = from_str_radix("1000", 10).ok(); + let u : Option<u8> = u8::from_str_radix("1000", 10).ok(); assert_eq!(u, None); - let s : Option<i16> = from_str_radix("80000", 10).ok(); + let s : Option<i16> = i16::from_str_radix("80000", 10).ok(); assert_eq!(s, None); - let f : Option<f32> = from_str_radix("10000000000000000000000000000000000000000", 10).ok(); + let s = "10000000000000000000000000000000000000000"; + let f : Option<f32> = f32::from_str_radix(s, 10).ok(); assert_eq!(f, Some(Float::infinity())); - let fe : Option<f32> = from_str_radix("1e40", 10).ok(); + let fe : Option<f32> = f32::from_str_radix("1e40", 10).ok(); assert_eq!(fe, Some(Float::infinity())); } #[test] fn test_from_str_radix_float() { - let x1 : Option<f64> = from_str_radix("-123.456", 10).ok(); + let x1 : Option<f64> = f64::from_str_radix("-123.456", 10).ok(); assert_eq!(x1, Some(-123.456)); - let x2 : Option<f32> = from_str_radix("123.456", 10).ok(); + let x2 : Option<f32> = f32::from_str_radix("123.456", 10).ok(); assert_eq!(x2, Some(123.456)); - let x3 : Option<f32> = from_str_radix("-0.0", 10).ok(); + let x3 : Option<f32> = f32::from_str_radix("-0.0", 10).ok(); assert_eq!(x3, Some(-0.0)); - let x4 : Option<f32> = from_str_radix("0.0", 10).ok(); + let x4 : Option<f32> = f32::from_str_radix("0.0", 10).ok(); assert_eq!(x4, Some(0.0)); - let x4 : Option<f32> = from_str_radix("1.0", 10).ok(); + let x4 : Option<f32> = f32::from_str_radix("1.0", 10).ok(); assert_eq!(x4, Some(1.0)); - let x5 : Option<f32> = from_str_radix("-1.0", 10).ok(); + let x5 : Option<f32> = f32::from_str_radix("-1.0", 10).ok(); assert_eq!(x5, Some(-1.0)); } diff --git a/src/libcoretest/num/uint_macros.rs b/src/libcoretest/num/uint_macros.rs index 5e00692766d..1712345f9d9 100644 --- a/src/libcoretest/num/uint_macros.rs +++ b/src/libcoretest/num/uint_macros.rs @@ -8,11 +8,10 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. -macro_rules! uint_module { ($T:ty, $T_i:ident) => ( +macro_rules! uint_module { ($T:ident, $T_i:ident) => ( #[cfg(test)] mod tests { use core::$T_i::*; - use core::num::Int; use num; use core::ops::{BitOr, BitAnd, BitXor, Shl, Shr, Not}; @@ -97,30 +96,30 @@ mod tests { #[test] fn test_le() { - assert_eq!(Int::from_le(A.to_le()), A); - assert_eq!(Int::from_le(B.to_le()), B); - assert_eq!(Int::from_le(C.to_le()), C); - assert_eq!(Int::from_le(_0), _0); - assert_eq!(Int::from_le(_1), _1); + assert_eq!($T::from_le(A.to_le()), A); + assert_eq!($T::from_le(B.to_le()), B); + assert_eq!($T::from_le(C.to_le()), C); + assert_eq!($T::from_le(_0), _0); + assert_eq!($T::from_le(_1), _1); assert_eq!(_0.to_le(), _0); assert_eq!(_1.to_le(), _1); } #[test] fn test_be() { - assert_eq!(Int::from_be(A.to_be()), A); - assert_eq!(Int::from_be(B.to_be()), B); - assert_eq!(Int::from_be(C.to_be()), C); - assert_eq!(Int::from_be(_0), _0); - assert_eq!(Int::from_be(_1), _1); + assert_eq!($T::from_be(A.to_be()), A); + assert_eq!($T::from_be(B.to_be()), B); + assert_eq!($T::from_be(C.to_be()), C); + assert_eq!($T::from_be(_0), _0); + assert_eq!($T::from_be(_1), _1); assert_eq!(_0.to_be(), _0); assert_eq!(_1.to_be(), _1); } #[test] fn test_unsigned_checked_div() { - assert!(10.checked_div(2) == Some(5)); - assert!(5.checked_div(0) == None); + assert!((10 as $T).checked_div(2) == Some(5)); + assert!((5 as $T).checked_div(0) == None); } } diff --git a/src/librand/chacha.rs b/src/librand/chacha.rs index 44187a4fc99..9cd3b74e155 100644 --- a/src/librand/chacha.rs +++ b/src/librand/chacha.rs @@ -11,8 +11,6 @@ //! The ChaCha random number generator. use core::prelude::*; -use core::num::Int; -use core::num::wrapping::WrappingOps; use {Rng, SeedableRng, Rand}; const KEY_WORDS : usize = 8; // 8 words for the 256-bit key diff --git a/src/librand/distributions/mod.rs b/src/librand/distributions/mod.rs index 77e53248607..4ea81b8e619 100644 --- a/src/librand/distributions/mod.rs +++ b/src/librand/distributions/mod.rs @@ -18,7 +18,7 @@ //! that do not need to record state. use core::prelude::*; -use core::num::{Float, Int}; +use core::num::Float; use core::marker::PhantomData; use {Rng, Rand}; diff --git a/src/librand/distributions/range.rs b/src/librand/distributions/range.rs index 8406c76cc1b..4916e305b70 100644 --- a/src/librand/distributions/range.rs +++ b/src/librand/distributions/range.rs @@ -13,8 +13,6 @@ // this is surprisingly complicated to be both generic & correct use core::prelude::PartialOrd; -use core::num::Int; -use core::num::wrapping::WrappingOps; use Rng; use distributions::{Sample, IndependentSample}; @@ -73,7 +71,7 @@ pub trait SampleRange { } macro_rules! integer_impl { - ($ty:ty, $unsigned:ty) => { + ($ty:ident, $unsigned:ident) => { impl SampleRange for $ty { // we play free and fast with unsigned vs signed here // (when $ty is signed), but that's fine, since the @@ -83,7 +81,7 @@ macro_rules! integer_impl { fn construct_range(low: $ty, high: $ty) -> Range<$ty> { let range = (high as $unsigned).wrapping_sub(low as $unsigned); - let unsigned_max: $unsigned = Int::max_value(); + let unsigned_max: $unsigned = $unsigned::max_value(); // this is the largest number that fits into $unsigned // that `range` divides evenly, so, if we've sampled @@ -148,7 +146,6 @@ float_impl! { f64 } #[cfg(test)] mod tests { - use std::num::Int; use std::prelude::v1::*; use distributions::{Sample, IndependentSample}; use super::Range as Range; @@ -168,11 +165,11 @@ mod tests { fn test_integers() { let mut rng = ::test::rng(); macro_rules! t { - ($($ty:ty),*) => {{ + ($($ty:ident),*) => {{ $( let v: &[($ty, $ty)] = &[(0, 10), (10, 127), - (Int::min_value(), Int::max_value())]; + ($ty::min_value(), $ty::max_value())]; for &(low, high) in v { let mut sampler: Range<$ty> = Range::new(low, high); for _ in 0..1000 { diff --git a/src/librbml/lib.rs b/src/librbml/lib.rs index e2875ac8ca5..b7938397038 100644 --- a/src/librbml/lib.rs +++ b/src/librbml/lib.rs @@ -836,7 +836,6 @@ pub mod writer { use std::io::prelude::*; use std::io::{self, SeekFrom, Cursor}; use std::slice::bytes; - use std::num::ToPrimitive; use super::{ EsVec, EsMap, EsEnum, EsSub8, EsSub32, EsVecElt, EsMapKey, EsU64, EsU32, EsU16, EsU8, EsI64, EsI32, EsI16, EsI8, @@ -1070,10 +1069,10 @@ pub mod writer { impl<'a> Encoder<'a> { // used internally to emit things like the vector length and so on fn _emit_tagged_sub(&mut self, v: usize) -> EncodeResult { - if let Some(v) = v.to_u8() { - self.wr_tagged_raw_u8(EsSub8 as usize, v) - } else if let Some(v) = v.to_u32() { - self.wr_tagged_raw_u32(EsSub32 as usize, v) + if v as u8 as usize == v { + self.wr_tagged_raw_u8(EsSub8 as usize, v as u8) + } else if v as u32 as usize == v { + self.wr_tagged_raw_u32(EsSub32 as usize, v as u32) } else { Err(io::Error::new(io::ErrorKind::Other, &format!("length or variant id too big: {}", @@ -1101,21 +1100,24 @@ pub mod writer { self.emit_u64(v as u64) } fn emit_u64(&mut self, v: u64) -> EncodeResult { - match v.to_u32() { - Some(v) => self.emit_u32(v), - None => self.wr_tagged_raw_u64(EsU64 as usize, v) + if v as u32 as u64 == v { + self.emit_u32(v as u32) + } else { + self.wr_tagged_raw_u64(EsU64 as usize, v) } } fn emit_u32(&mut self, v: u32) -> EncodeResult { - match v.to_u16() { - Some(v) => self.emit_u16(v), - None => self.wr_tagged_raw_u32(EsU32 as usize, v) + if v as u16 as u32 == v { + self.emit_u16(v as u16) + } else { + self.wr_tagged_raw_u32(EsU32 as usize, v) } } fn emit_u16(&mut self, v: u16) -> EncodeResult { - match v.to_u8() { - Some(v) => self.emit_u8(v), - None => self.wr_tagged_raw_u16(EsU16 as usize, v) + if v as u8 as u16 == v { + self.emit_u8(v as u8) + } else { + self.wr_tagged_raw_u16(EsU16 as usize, v) } } fn emit_u8(&mut self, v: u8) -> EncodeResult { @@ -1126,21 +1128,24 @@ pub mod writer { self.emit_i64(v as i64) } fn emit_i64(&mut self, v: i64) -> EncodeResult { - match v.to_i32() { - Some(v) => self.emit_i32(v), - None => self.wr_tagged_raw_i64(EsI64 as usize, v) + if v as i32 as i64 == v { + self.emit_i32(v as i32) + } else { + self.wr_tagged_raw_i64(EsI64 as usize, v) } } fn emit_i32(&mut self, v: i32) -> EncodeResult { - match v.to_i16() { - Some(v) => self.emit_i16(v), - None => self.wr_tagged_raw_i32(EsI32 as usize, v) + if v as i16 as i32 == v { + self.emit_i16(v as i16) + } else { + self.wr_tagged_raw_i32(EsI32 as usize, v) } } fn emit_i16(&mut self, v: i16) -> EncodeResult { - match v.to_i8() { - Some(v) => self.emit_i8(v), - None => self.wr_tagged_raw_i16(EsI16 as usize, v) + if v as i8 as i16 == v { + self.emit_i8(v as i8) + } else { + self.wr_tagged_raw_i16(EsI16 as usize, v) } } fn emit_i8(&mut self, v: i8) -> EncodeResult { diff --git a/src/librustc/lib.rs b/src/librustc/lib.rs index 5b4d6c144cf..9093b3b9f5c 100644 --- a/src/librustc/lib.rs +++ b/src/librustc/lib.rs @@ -68,6 +68,9 @@ extern crate test; pub use rustc_llvm as llvm; +#[macro_use] +mod macros; + // NB: This module needs to be declared first so diagnostics are // registered before they are used. pub mod diagnostics; @@ -141,6 +144,7 @@ pub mod util { pub mod ppaux; pub mod nodemap; pub mod lev_distance; + pub mod num; } pub mod lib { diff --git a/src/librustc/macros.rs b/src/librustc/macros.rs new file mode 100644 index 00000000000..ed764ebd9f9 --- /dev/null +++ b/src/librustc/macros.rs @@ -0,0 +1,46 @@ +// Copyright 2015 The Rust Project Developers. See the COPYRIGHT +// file at the top-level directory of this distribution and at +// http://rust-lang.org/COPYRIGHT. +// +// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or +// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license +// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +macro_rules! enum_from_u32 { + ($(#[$attr:meta])* pub enum $name:ident { + $($variant:ident = $e:expr,)* + }) => { + $(#[$attr])* + pub enum $name { + $($variant = $e),* + } + + impl $name { + pub fn from_u32(u: u32) -> Option<$name> { + $(if u == $name::$variant as u32 { + return Some($name::$variant) + })* + None + } + } + }; + ($(#[$attr:meta])* pub enum $name:ident { + $($variant:ident,)* + }) => { + $(#[$attr])* + pub enum $name { + $($variant,)* + } + + impl $name { + pub fn from_u32(u: u32) -> Option<$name> { + $(if u == $name::$variant as u32 { + return Some($name::$variant) + })* + None + } + } + } +} diff --git a/src/librustc/metadata/common.rs b/src/librustc/metadata/common.rs index cda00847686..06a40f1dd27 100644 --- a/src/librustc/metadata/common.rs +++ b/src/librustc/metadata/common.rs @@ -116,37 +116,39 @@ pub const tag_items_data_item_reexport_def_id: usize = 0x47; pub const tag_items_data_item_reexport_name: usize = 0x48; // used to encode crate_ctxt side tables -#[derive(Copy, Clone, PartialEq, FromPrimitive)] -#[repr(usize)] -pub enum astencode_tag { // Reserves 0x50 -- 0x6f - tag_ast = 0x50, - - tag_tree = 0x51, - - tag_id_range = 0x52, - - tag_table = 0x53, - // GAP 0x54, 0x55 - tag_table_def = 0x56, - tag_table_node_type = 0x57, - tag_table_item_subst = 0x58, - tag_table_freevars = 0x59, - tag_table_tcache = 0x5a, - tag_table_param_defs = 0x5b, - tag_table_mutbl = 0x5c, - tag_table_last_use = 0x5d, - tag_table_spill = 0x5e, - tag_table_method_map = 0x5f, - tag_table_vtable_map = 0x60, - tag_table_adjustments = 0x61, - tag_table_moves_map = 0x62, - tag_table_capture_map = 0x63, - tag_table_closure_tys = 0x64, - tag_table_closure_kinds = 0x65, - tag_table_upvar_capture_map = 0x66, - tag_table_capture_modes = 0x67, - tag_table_object_cast_map = 0x68, - tag_table_const_qualif = 0x69, +enum_from_u32! { + #[derive(Copy, Clone, PartialEq)] + #[repr(usize)] + pub enum astencode_tag { // Reserves 0x50 -- 0x6f + tag_ast = 0x50, + + tag_tree = 0x51, + + tag_id_range = 0x52, + + tag_table = 0x53, + // GAP 0x54, 0x55 + tag_table_def = 0x56, + tag_table_node_type = 0x57, + tag_table_item_subst = 0x58, + tag_table_freevars = 0x59, + tag_table_tcache = 0x5a, + tag_table_param_defs = 0x5b, + tag_table_mutbl = 0x5c, + tag_table_last_use = 0x5d, + tag_table_spill = 0x5e, + tag_table_method_map = 0x5f, + tag_table_vtable_map = 0x60, + tag_table_adjustments = 0x61, + tag_table_moves_map = 0x62, + tag_table_capture_map = 0x63, + tag_table_closure_tys = 0x64, + tag_table_closure_kinds = 0x65, + tag_table_upvar_capture_map = 0x66, + tag_table_capture_modes = 0x67, + tag_table_object_cast_map = 0x68, + tag_table_const_qualif = 0x69, + } } pub const tag_item_trait_item_sort: usize = 0x70; diff --git a/src/librustc/metadata/cstore.rs b/src/librustc/metadata/cstore.rs index 811aa21a0b7..1f18b13fc46 100644 --- a/src/librustc/metadata/cstore.rs +++ b/src/librustc/metadata/cstore.rs @@ -68,11 +68,13 @@ pub enum LinkagePreference { RequireStatic, } -#[derive(Copy, Clone, PartialEq, FromPrimitive)] -pub enum NativeLibraryKind { - NativeStatic, // native static library (.a archive) - NativeFramework, // OSX-specific - NativeUnknown, // default way to specify a dynamic library +enum_from_u32! { + #[derive(Copy, Clone, PartialEq)] + pub enum NativeLibraryKind { + NativeStatic, // native static library (.a archive) + NativeFramework, // OSX-specific + NativeUnknown, // default way to specify a dynamic library + } } // Where a crate came from on the local filesystem. One of these two options diff --git a/src/librustc/metadata/decoder.rs b/src/librustc/metadata/decoder.rs index 6b3bde409f5..cbd54256770 100644 --- a/src/librustc/metadata/decoder.rs +++ b/src/librustc/metadata/decoder.rs @@ -35,7 +35,6 @@ use std::collections::HashMap; use std::hash::{self, Hash, SipHasher}; use std::io::prelude::*; use std::io; -use std::num::FromPrimitive; use std::rc::Rc; use std::slice::bytes; use std::str; @@ -1349,7 +1348,7 @@ pub fn get_native_libraries(cdata: Cmd) let kind_doc = reader::get_doc(lib_doc, tag_native_libraries_kind); let name_doc = reader::get_doc(lib_doc, tag_native_libraries_name); let kind: cstore::NativeLibraryKind = - FromPrimitive::from_u32(reader::doc_as_u32(kind_doc)).unwrap(); + cstore::NativeLibraryKind::from_u32(reader::doc_as_u32(kind_doc)).unwrap(); let name = name_doc.as_str().to_string(); result.push((kind, name)); true @@ -1359,7 +1358,7 @@ pub fn get_native_libraries(cdata: Cmd) pub fn get_plugin_registrar_fn(data: &[u8]) -> Option<ast::NodeId> { reader::maybe_get_doc(rbml::Doc::new(data), tag_plugin_registrar_fn) - .map(|doc| FromPrimitive::from_u32(reader::doc_as_u32(doc)).unwrap()) + .map(|doc| reader::doc_as_u32(doc)) } pub fn each_exported_macro<F>(data: &[u8], intr: &IdentInterner, mut f: F) where @@ -1407,7 +1406,7 @@ pub fn get_missing_lang_items(cdata: Cmd) let mut result = Vec::new(); reader::tagged_docs(items, tag_lang_items_missing, |missing_docs| { let item: lang_items::LangItem = - FromPrimitive::from_u32(reader::doc_as_u32(missing_docs)).unwrap(); + lang_items::LangItem::from_u32(reader::doc_as_u32(missing_docs)).unwrap(); result.push(item); true }); diff --git a/src/librustc/middle/astencode.rs b/src/librustc/middle/astencode.rs index 7ee0ea4fd66..ee8373279d9 100644 --- a/src/librustc/middle/astencode.rs +++ b/src/librustc/middle/astencode.rs @@ -41,7 +41,6 @@ use syntax; use std::cell::Cell; use std::io::SeekFrom; use std::io::prelude::*; -use std::num::FromPrimitive; use std::rc::Rc; use std::fmt::Debug; @@ -1713,7 +1712,8 @@ fn decode_side_tables(dcx: &DecodeContext, debug!(">> Side table document with tag 0x{:x} \ found for id {} (orig {})", tag, id, id0); - let decoded_tag: Option<c::astencode_tag> = FromPrimitive::from_usize(tag); + let tag = tag as u32; + let decoded_tag: Option<c::astencode_tag> = c::astencode_tag::from_u32(tag); match decoded_tag { None => { dcx.tcx.sess.bug( diff --git a/src/librustc/middle/const_eval.rs b/src/librustc/middle/const_eval.rs index 367bcbbe1d8..2c6ffb3281f 100644 --- a/src/librustc/middle/const_eval.rs +++ b/src/librustc/middle/const_eval.rs @@ -20,6 +20,7 @@ use middle::{astencode, def}; use middle::pat_util::def_to_path; use middle::ty::{self, Ty}; use middle::astconv_util::ast_ty_to_prim_ty; +use util::num::ToPrimitive; use syntax::ast::{self, Expr}; use syntax::codemap::Span; @@ -30,7 +31,6 @@ use syntax::{ast_map, ast_util, codemap}; use std::borrow::{Cow, IntoCow}; use std::num::wrapping::OverflowingOps; -use std::num::ToPrimitive; use std::cmp::Ordering; use std::collections::hash_map::Entry::Vacant; use std::{i8, i16, i32, i64}; diff --git a/src/librustc/middle/lang_items.rs b/src/librustc/middle/lang_items.rs index 89a8625856c..c77a43e75cd 100644 --- a/src/librustc/middle/lang_items.rs +++ b/src/librustc/middle/lang_items.rs @@ -36,7 +36,6 @@ use syntax::visit::Visitor; use syntax::visit; use std::iter::Enumerate; -use std::num::FromPrimitive; use std::slice; // The actual lang items defined come at the end of this file in one handy table. @@ -46,9 +45,12 @@ macro_rules! lets_do_this { $( $variant:ident, $name:expr, $method:ident; )* ) => { -#[derive(Copy, Clone, FromPrimitive, PartialEq, Eq, Hash)] -pub enum LangItem { - $($variant),* + +enum_from_u32! { + #[derive(Copy, Clone, PartialEq, Eq, Hash)] + pub enum LangItem { + $($variant,)* + } } pub struct LanguageItems { @@ -71,7 +73,7 @@ impl LanguageItems { } pub fn item_name(index: usize) -> &'static str { - let item: Option<LangItem> = FromPrimitive::from_usize(index); + let item: Option<LangItem> = LangItem::from_u32(index as u32); match item { $( Some($variant) => $name, )* None => "???" diff --git a/src/librustc/middle/ty.rs b/src/librustc/middle/ty.rs index 53c3cdd02af..2c94399f921 100644 --- a/src/librustc/middle/ty.rs +++ b/src/librustc/middle/ty.rs @@ -63,6 +63,7 @@ use util::ppaux::{Repr, UserString}; use util::common::{memoized, ErrorReported}; use util::nodemap::{NodeMap, NodeSet, DefIdMap, DefIdSet}; use util::nodemap::FnvHashMap; +use util::num::ToPrimitive; use arena::TypedArena; use std::borrow::{Borrow, Cow}; @@ -71,7 +72,6 @@ use std::cmp; use std::fmt; use std::hash::{Hash, SipHasher, Hasher}; use std::mem; -use std::num::ToPrimitive; use std::ops; use std::rc::Rc; use std::vec::IntoIter; diff --git a/src/librustc/util/num.rs b/src/librustc/util/num.rs new file mode 100644 index 00000000000..da04976a96a --- /dev/null +++ b/src/librustc/util/num.rs @@ -0,0 +1,98 @@ +// Copyright 2015 The Rust Project Developers. See the COPYRIGHT +// file at the top-level directory of this distribution and at +// http://rust-lang.org/COPYRIGHT. +// +// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or +// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license +// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +pub trait ToPrimitive { + fn to_i8(&self) -> Option<i8>; + fn to_i16(&self) -> Option<i16>; + fn to_i32(&self) -> Option<i32>; + fn to_i64(&self) -> Option<i64>; + fn to_u8(&self) -> Option<u8>; + fn to_u16(&self) -> Option<u16>; + fn to_u32(&self) -> Option<u32>; + fn to_u64(&self) -> Option<u64>; +} + +impl ToPrimitive for i64 { + fn to_i8(&self) -> Option<i8> { + if *self < i8::min_value() as i64 || *self > i8::max_value() as i64 { + None + } else { + Some(*self as i8) + } + } + fn to_i16(&self) -> Option<i16> { + if *self < i16::min_value() as i64 || *self > i16::max_value() as i64 { + None + } else { + Some(*self as i16) + } + } + fn to_i32(&self) -> Option<i32> { + if *self < i32::min_value() as i64 || *self > i32::max_value() as i64 { + None + } else { + Some(*self as i32) + } + } + fn to_i64(&self) -> Option<i64> { + Some(*self) + } + fn to_u8(&self) -> Option<u8> { + if *self < 0 || *self > u8::max_value() as i64 { + None + } else { + Some(*self as u8) + } + } + fn to_u16(&self) -> Option<u16> { + if *self < 0 || *self > u16::max_value() as i64 { + None + } else { + Some(*self as u16) + } + } + fn to_u32(&self) -> Option<u32> { + if *self < 0 || *self > u32::max_value() as i64 { + None + } else { + Some(*self as u32) + } + } + fn to_u64(&self) -> Option<u64> { + if *self < 0 {None} else {Some(*self as u64)} + } +} + +impl ToPrimitive for u64 { + fn to_i8(&self) -> Option<i8> { + if *self > i8::max_value() as u64 {None} else {Some(*self as i8)} + } + fn to_i16(&self) -> Option<i16> { + if *self > i16::max_value() as u64 {None} else {Some(*self as i16)} + } + fn to_i32(&self) -> Option<i32> { + if *self > i32::max_value() as u64 {None} else {Some(*self as i32)} + } + fn to_i64(&self) -> Option<i64> { + if *self > i64::max_value() as u64 {None} else {Some(*self as i64)} + } + fn to_u8(&self) -> Option<u8> { + if *self > u8::max_value() as u64 {None} else {Some(*self as u8)} + } + fn to_u16(&self) -> Option<u16> { + if *self > u16::max_value() as u64 {None} else {Some(*self as u16)} + } + fn to_u32(&self) -> Option<u32> { + if *self > u32::max_value() as u64 {None} else {Some(*self as u32)} + } + fn to_u64(&self) -> Option<u64> { + Some(*self) + } +} diff --git a/src/librustc_back/sha2.rs b/src/librustc_back/sha2.rs index 898f20e7451..9ed827da8b2 100644 --- a/src/librustc_back/sha2.rs +++ b/src/librustc_back/sha2.rs @@ -12,10 +12,7 @@ //! use. This implementation is not intended for external use or for any use where security is //! important. -#![allow(deprecated)] // to_be32 - use std::iter::repeat; -use std::num::Int; use std::slice::bytes::{MutableByteVector, copy_memory}; use serialize::hex::ToHex; @@ -61,10 +58,10 @@ impl ToBits for u64 { /// Adds the specified number of bytes to the bit count. panic!() if this would cause numeric /// overflow. -fn add_bytes_to_bits<T: Int + ToBits>(bits: T, bytes: T) -> T { +fn add_bytes_to_bits(bits: u64, bytes: u64) -> u64 { let (new_high_bits, new_low_bits) = bytes.to_bits(); - if new_high_bits > T::zero() { + if new_high_bits > 0 { panic!("numeric overflow occurred.") } @@ -543,14 +540,14 @@ mod tests { // A normal addition - no overflow occurs #[test] fn test_add_bytes_to_bits_ok() { - assert!(super::add_bytes_to_bits::<u64>(100, 10) == 180); + assert!(super::add_bytes_to_bits(100, 10) == 180); } // A simple failure case - adding 1 to the max value #[test] #[should_panic] fn test_add_bytes_to_bits_overflow() { - super::add_bytes_to_bits::<u64>(u64::MAX, 1); + super::add_bytes_to_bits(u64::MAX, 1); } struct Test { diff --git a/src/librustc_trans/back/lto.rs b/src/librustc_trans/back/lto.rs index e06a7b882e6..6457140bcc0 100644 --- a/src/librustc_trans/back/lto.rs +++ b/src/librustc_trans/back/lto.rs @@ -21,9 +21,6 @@ use libc; use flate; use std::ffi::CString; -use std::mem; -#[allow(deprecated)] -use std::num::Int; pub fn run(sess: &session::Session, llmod: ModuleRef, tm: TargetMachineRef, reachable: &[String]) { @@ -199,19 +196,15 @@ fn is_versioned_bytecode_format(bc: &[u8]) -> bool { } fn extract_bytecode_format_version(bc: &[u8]) -> u32 { - return read_from_le_bytes::<u32>(bc, link::RLIB_BYTECODE_OBJECT_VERSION_OFFSET); + let pos = link::RLIB_BYTECODE_OBJECT_VERSION_OFFSET; + let byte_data = &bc[pos..pos + 4]; + let data = unsafe { *(byte_data.as_ptr() as *const u32) }; + u32::from_le(data) } fn extract_compressed_bytecode_size_v1(bc: &[u8]) -> u64 { - return read_from_le_bytes::<u64>(bc, link::RLIB_BYTECODE_OBJECT_V1_DATASIZE_OFFSET); -} - -#[allow(deprecated)] -fn read_from_le_bytes<T: Int>(bytes: &[u8], position_in_bytes: usize) -> T { - let byte_data = &bytes[position_in_bytes..position_in_bytes + mem::size_of::<T>()]; - let data = unsafe { - *(byte_data.as_ptr() as *const T) - }; - - Int::from_le(data) + let pos = link::RLIB_BYTECODE_OBJECT_V1_DATASIZE_OFFSET; + let byte_data = &bc[pos..pos + 8]; + let data = unsafe { *(byte_data.as_ptr() as *const u64) }; + u64::from_le(data) } diff --git a/src/librustc_trans/trans/adt.rs b/src/librustc_trans/trans/adt.rs index ffa068a2ae4..e2827eeae15 100644 --- a/src/librustc_trans/trans/adt.rs +++ b/src/librustc_trans/trans/adt.rs @@ -45,8 +45,6 @@ pub use self::Repr::*; -#[allow(deprecated)] -use std::num::Int; use std::rc::Rc; use llvm::{ValueRef, True, IntEQ, IntNE}; diff --git a/src/librustc_trans/trans/type_of.rs b/src/librustc_trans/trans/type_of.rs index b3ab58e416f..9f015213136 100644 --- a/src/librustc_trans/trans/type_of.rs +++ b/src/librustc_trans/trans/type_of.rs @@ -21,8 +21,6 @@ use util::ppaux::Repr; use trans::type_::Type; -#[allow(deprecated)] -use std::num::Int; use syntax::abi; use syntax::ast; diff --git a/src/libserialize/json.rs b/src/libserialize/json.rs index d042ef79233..baa6493533d 100644 --- a/src/libserialize/json.rs +++ b/src/libserialize/json.rs @@ -204,12 +204,10 @@ use std::io::prelude::*; use std::io; use std::mem::swap; use std::num::FpCategory as Fp; -#[allow(deprecated)] -use std::num::wrapping::WrappingOps; use std::ops::Index; use std::str::FromStr; use std::string; -use std::{char, f64, fmt, num, str}; +use std::{char, f64, fmt, str}; use std; use rustc_unicode::str as unicode_str; use rustc_unicode::str::Utf16Item; @@ -460,8 +458,8 @@ fn spaces(wr: &mut fmt::Write, mut n: usize) -> EncodeResult { fn fmt_number_or_null(v: f64) -> string::String { match v.classify() { Fp::Nan | Fp::Infinite => string::String::from_str("null"), - _ if v.fract() != 0f64 => f64::to_str_digits(v, 6), - _ => f64::to_str_digits(v, 6) + ".0", + _ if v.fract() != 0f64 => v.to_string(), + _ => v.to_string() + ".0", } } @@ -1165,7 +1163,7 @@ impl Json { pub fn as_i64(&self) -> Option<i64> { match *self { Json::I64(n) => Some(n), - Json::U64(n) => num::cast(n), + Json::U64(n) => Some(n as i64), _ => None } } @@ -1174,7 +1172,7 @@ impl Json { /// Returns None otherwise. pub fn as_u64(&self) -> Option<u64> { match *self { - Json::I64(n) => num::cast(n), + Json::I64(n) => Some(n as u64), Json::U64(n) => Some(n), _ => None } @@ -1184,8 +1182,8 @@ impl Json { /// Returns None otherwise. pub fn as_f64(&self) -> Option<f64> { match *self { - Json::I64(n) => num::cast(n), - Json::U64(n) => num::cast(n), + Json::I64(n) => Some(n as f64), + Json::U64(n) => Some(n as f64), Json::F64(n) => Some(n), _ => None } @@ -1556,7 +1554,7 @@ impl<T: Iterator<Item=char>> Parser<T> { #[allow(deprecated)] // possible resolve bug is mapping these to traits fn parse_u64(&mut self) -> Result<u64, ParserError> { - let mut accum = 0; + let mut accum = 0u64; let last_accum = 0; // necessary to detect overflow. match self.ch_or_null() { @@ -2121,14 +2119,8 @@ macro_rules! read_primitive { ($name:ident, $ty:ty) => { fn $name(&mut self) -> DecodeResult<$ty> { match self.pop() { - Json::I64(f) => match num::cast(f) { - Some(f) => Ok(f), - None => Err(ExpectedError("Number".to_string(), format!("{}", f))), - }, - Json::U64(f) => match num::cast(f) { - Some(f) => Ok(f), - None => Err(ExpectedError("Number".to_string(), format!("{}", f))), - }, + Json::I64(f) => Ok(f as $ty), + Json::U64(f) => Ok(f as $ty), Json::F64(f) => Err(ExpectedError("Integer".to_string(), format!("{}", f))), // re: #12967.. a type w/ numeric keys (ie HashMap<usize, V> etc) // is going to have a string here, as per JSON spec. diff --git a/src/libstd/collections/hash/map.rs b/src/libstd/collections/hash/map.rs index 33e609702c4..9ba90c470f8 100644 --- a/src/libstd/collections/hash/map.rs +++ b/src/libstd/collections/hash/map.rs @@ -1620,7 +1620,7 @@ mod test_map { use super::HashMap; use super::Entry::{Occupied, Vacant}; - use iter::{range_inclusive, range_step_inclusive, repeat}; + use iter::{range_inclusive, repeat}; use cell::RefCell; use rand::{thread_rng, Rng}; @@ -1856,7 +1856,7 @@ mod test_map { } // remove backwards - for i in range_step_inclusive(1000, 1, -1) { + for i in (1..1001).rev() { assert!(m.remove(&i).is_some()); for j in range_inclusive(i, 1000) { diff --git a/src/libstd/collections/hash/table.rs b/src/libstd/collections/hash/table.rs index 65ebf8515e6..3a63e2ab59c 100644 --- a/src/libstd/collections/hash/table.rs +++ b/src/libstd/collections/hash/table.rs @@ -17,7 +17,7 @@ use iter::{Iterator, ExactSizeIterator}; use marker::{Copy, Send, Sync, Sized, self}; use mem::{min_align_of, size_of}; use mem; -use num::wrapping::{OverflowingOps, WrappingOps}; +use num::wrapping::OverflowingOps; use ops::{Deref, DerefMut, Drop}; use option::Option; use option::Option::{Some, None}; diff --git a/src/libstd/env.rs b/src/libstd/env.rs index c66be35f3f6..114d0dd79a0 100644 --- a/src/libstd/env.rs +++ b/src/libstd/env.rs @@ -771,7 +771,7 @@ mod tests { } fn eq(a: Option<OsString>, b: Option<&str>) { - assert_eq!(a.as_ref().map(|s| &**s), b.map(OsStr::from_str).map(|s| &*s)); + assert_eq!(a.as_ref().map(|s| &**s), b.map(OsStr::new).map(|s| &*s)); } #[test] @@ -894,7 +894,7 @@ mod tests { fn join_paths_unix() { fn test_eq(input: &[&str], output: &str) -> bool { &*join_paths(input.iter().cloned()).unwrap() == - OsStr::from_str(output) + OsStr::new(output) } assert!(test_eq(&[], "")); @@ -910,7 +910,7 @@ mod tests { fn join_paths_windows() { fn test_eq(input: &[&str], output: &str) -> bool { &*join_paths(input.iter().cloned()).unwrap() == - OsStr::from_str(output) + OsStr::new(output) } assert!(test_eq(&[], "")); diff --git a/src/libstd/ffi/mod.rs b/src/libstd/ffi/mod.rs index 99becb67a5a..dfe706e0773 100644 --- a/src/libstd/ffi/mod.rs +++ b/src/libstd/ffi/mod.rs @@ -20,11 +20,3 @@ pub use self::os_str::{OsString, OsStr}; mod c_str; mod os_str; - -// FIXME (#21670): these should be defined in the os_str module -/// Freely convertible to an `&OsStr` slice. -#[unstable(feature = "std_misc")] -pub trait AsOsStr { - /// Converts to an `&OsStr` slice. - fn as_os_str(&self) -> &OsStr; -} diff --git a/src/libstd/ffi/os_str.rs b/src/libstd/ffi/os_str.rs index 08b41915d91..97bf33335b0 100644 --- a/src/libstd/ffi/os_str.rs +++ b/src/libstd/ffi/os_str.rs @@ -46,7 +46,6 @@ use vec::Vec; use sys::os_str::{Buf, Slice}; use sys_common::{AsInner, IntoInner, FromInner}; -use super::AsOsStr; /// Owned, mutable OS strings. #[derive(Clone)] @@ -226,14 +225,6 @@ impl OsStr { s.as_ref() } - /// Coerces directly from a `&str` slice to a `&OsStr` slice. - #[stable(feature = "rust1", since = "1.0.0")] - #[deprecated(since = "1.0.0", - reason = "use `OsStr::new` instead")] - pub fn from_str(s: &str) -> &OsStr { - unsafe { mem::transmute(Slice::from_str(s)) } - } - /// Yields a `&str` slice if the `OsStr` is valid unicode. /// /// This conversion may entail doing a check for UTF-8 validity. @@ -379,46 +370,6 @@ impl ToOwned for OsStr { } #[stable(feature = "rust1", since = "1.0.0")] -#[deprecated(since = "1.0.0", reason = "trait is deprecated")] -impl<'a, T: AsOsStr + ?Sized> AsOsStr for &'a T { - fn as_os_str(&self) -> &OsStr { - (*self).as_os_str() - } -} - -#[stable(feature = "rust1", since = "1.0.0")] -#[deprecated(since = "1.0.0", reason = "trait is deprecated")] -impl AsOsStr for OsStr { - fn as_os_str(&self) -> &OsStr { - self - } -} - -#[stable(feature = "rust1", since = "1.0.0")] -#[deprecated(since = "1.0.0", reason = "trait is deprecated")] -impl AsOsStr for OsString { - fn as_os_str(&self) -> &OsStr { - &self[..] - } -} - -#[stable(feature = "rust1", since = "1.0.0")] -#[deprecated(since = "1.0.0", reason = "trait is deprecated")] -impl AsOsStr for str { - fn as_os_str(&self) -> &OsStr { - unsafe { mem::transmute(Slice::from_str(self)) } - } -} - -#[stable(feature = "rust1", since = "1.0.0")] -#[deprecated(since = "1.0.0", reason = "trait is deprecated")] -impl AsOsStr for String { - fn as_os_str(&self) -> &OsStr { - unsafe { mem::transmute(Slice::from_str(self)) } - } -} - -#[stable(feature = "rust1", since = "1.0.0")] impl AsRef<OsStr> for OsStr { fn as_ref(&self) -> &OsStr { self diff --git a/src/libstd/io/error.rs b/src/libstd/io/error.rs index 959c15fcfd6..97c5a29d308 100644 --- a/src/libstd/io/error.rs +++ b/src/libstd/io/error.rs @@ -172,13 +172,6 @@ impl Error { Error { repr: Repr::Os(code) } } - /// Creates a new instance of an `Error` from a particular OS error code. - #[unstable(feature = "io", reason = "deprecated")] - #[deprecated(since = "1.0.0", reason = "renamed to from_raw_os_error")] - pub fn from_os_error(code: i32) -> Error { - Error { repr: Repr::Os(code) } - } - /// Returns the OS error that this error represents (if any). /// /// If this `Error` was constructed via `last_os_error` then this function diff --git a/src/libstd/lib.rs b/src/libstd/lib.rs index 4452a4457ac..96665259a4d 100644 --- a/src/libstd/lib.rs +++ b/src/libstd/lib.rs @@ -128,6 +128,8 @@ #![feature(std_misc)] #![feature(slice_patterns)] #![feature(debug_builders)] +#![feature(zero_one)] +#![cfg_attr(test, feature(float_from_str_radix))] #![cfg_attr(test, feature(test, rustc_private, std_misc))] // Don't link to std. We are std. diff --git a/src/libstd/net/mod.rs b/src/libstd/net/mod.rs index a152b98822a..3bfc764e540 100644 --- a/src/libstd/net/mod.rs +++ b/src/libstd/net/mod.rs @@ -18,8 +18,6 @@ use prelude::v1::*; use io::{self, Error, ErrorKind}; -#[allow(deprecated)] // Int -use num::Int; use sys_common::net2 as net_imp; pub use self::ip::{IpAddr, Ipv4Addr, Ipv6Addr, Ipv6MulticastScope}; @@ -55,10 +53,21 @@ pub enum Shutdown { Both, } -#[allow(deprecated)] // Int -fn hton<I: Int>(i: I) -> I { i.to_be() } -#[allow(deprecated)] // Int -fn ntoh<I: Int>(i: I) -> I { Int::from_be(i) } +#[doc(hidden)] +trait NetInt { + fn from_be(i: Self) -> Self; + fn to_be(&self) -> Self; +} +macro_rules! doit { + ($($t:ident)*) => ($(impl NetInt for $t { + fn from_be(i: Self) -> Self { <$t>::from_be(i) } + fn to_be(&self) -> Self { <$t>::to_be(*self) } + })*) +} +doit! { i8 i16 i32 i64 isize u8 u16 u32 u64 usize } + +fn hton<I: NetInt>(i: I) -> I { i.to_be() } +fn ntoh<I: NetInt>(i: I) -> I { I::from_be(i) } fn each_addr<A: ToSocketAddrs, F, T>(addr: A, mut f: F) -> io::Result<T> where F: FnMut(&SocketAddr) -> io::Result<T> diff --git a/src/libstd/num/f32.rs b/src/libstd/num/f32.rs index 736f6d2f4f4..0efc04ef83c 100644 --- a/src/libstd/num/f32.rs +++ b/src/libstd/num/f32.rs @@ -17,18 +17,14 @@ use prelude::v1::*; +use core::num; use intrinsics; use libc::c_int; -use num::{Float, FpCategory}; -use num::strconv; -use num::strconv::ExponentFormat::{ExpNone, ExpDec}; -use num::strconv::SignificantDigits::{DigAll, DigMax, DigExact}; -use num::strconv::SignFormat::SignNeg; - -use core::num; +use num::{FpCategory, ParseFloatError}; +use sys_common::FromInner; -pub use core::f32::{RADIX, MANTISSA_DIGITS, DIGITS, EPSILON, MIN_VALUE}; -pub use core::f32::{MIN_POS_VALUE, MAX_VALUE, MIN_EXP, MAX_EXP, MIN_10_EXP}; +pub use core::f32::{RADIX, MANTISSA_DIGITS, DIGITS, EPSILON}; +pub use core::f32::{MIN_EXP, MAX_EXP, MIN_10_EXP}; pub use core::f32::{MAX_10_EXP, NAN, INFINITY, NEG_INFINITY}; pub use core::f32::{MIN, MIN_POSITIVE, MAX}; pub use core::f32::consts; @@ -74,294 +70,16 @@ mod cmath { } } -#[stable(feature = "rust1", since = "1.0.0")] -#[allow(deprecated)] -impl Float for f32 { - #[inline] - fn nan() -> f32 { num::Float::nan() } - #[inline] - fn infinity() -> f32 { num::Float::infinity() } - #[inline] - fn neg_infinity() -> f32 { num::Float::neg_infinity() } - #[inline] - fn zero() -> f32 { num::Float::zero() } - #[inline] - fn neg_zero() -> f32 { num::Float::neg_zero() } - #[inline] - fn one() -> f32 { num::Float::one() } - - #[allow(deprecated)] - #[inline] - fn mantissa_digits(unused_self: Option<f32>) -> usize { - num::Float::mantissa_digits(unused_self) - } - #[allow(deprecated)] - #[inline] - fn digits(unused_self: Option<f32>) -> usize { num::Float::digits(unused_self) } - #[allow(deprecated)] - #[inline] - fn epsilon() -> f32 { num::Float::epsilon() } - #[allow(deprecated)] - #[inline] - fn min_exp(unused_self: Option<f32>) -> isize { num::Float::min_exp(unused_self) } - #[allow(deprecated)] - #[inline] - fn max_exp(unused_self: Option<f32>) -> isize { num::Float::max_exp(unused_self) } - #[allow(deprecated)] - #[inline] - fn min_10_exp(unused_self: Option<f32>) -> isize { num::Float::min_10_exp(unused_self) } - #[allow(deprecated)] - #[inline] - fn max_10_exp(unused_self: Option<f32>) -> isize { num::Float::max_10_exp(unused_self) } - #[allow(deprecated)] - #[inline] - fn min_value() -> f32 { num::Float::min_value() } - #[allow(deprecated)] - #[inline] - fn min_pos_value(unused_self: Option<f32>) -> f32 { num::Float::min_pos_value(unused_self) } - #[allow(deprecated)] - #[inline] - fn max_value() -> f32 { num::Float::max_value() } - - #[inline] - fn is_nan(self) -> bool { num::Float::is_nan(self) } - #[inline] - fn is_infinite(self) -> bool { num::Float::is_infinite(self) } - #[inline] - fn is_finite(self) -> bool { num::Float::is_finite(self) } - #[inline] - fn is_normal(self) -> bool { num::Float::is_normal(self) } - #[inline] - fn classify(self) -> FpCategory { num::Float::classify(self) } - - #[inline] - fn integer_decode(self) -> (u64, i16, i8) { num::Float::integer_decode(self) } - - #[inline] - fn floor(self) -> f32 { num::Float::floor(self) } - #[inline] - fn ceil(self) -> f32 { num::Float::ceil(self) } - #[inline] - fn round(self) -> f32 { num::Float::round(self) } - #[inline] - fn trunc(self) -> f32 { num::Float::trunc(self) } - #[inline] - fn fract(self) -> f32 { num::Float::fract(self) } - - #[inline] - fn abs(self) -> f32 { num::Float::abs(self) } - #[inline] - fn signum(self) -> f32 { num::Float::signum(self) } - #[inline] - fn is_positive(self) -> bool { num::Float::is_positive(self) } - #[inline] - fn is_negative(self) -> bool { num::Float::is_negative(self) } - - #[inline] - fn mul_add(self, a: f32, b: f32) -> f32 { num::Float::mul_add(self, a, b) } - #[inline] - fn recip(self) -> f32 { num::Float::recip(self) } - - #[inline] - fn powi(self, n: i32) -> f32 { num::Float::powi(self, n) } - #[inline] - fn powf(self, n: f32) -> f32 { num::Float::powf(self, n) } - - #[inline] - fn sqrt(self) -> f32 { num::Float::sqrt(self) } - #[inline] - fn rsqrt(self) -> f32 { num::Float::rsqrt(self) } - - #[inline] - fn exp(self) -> f32 { num::Float::exp(self) } - #[inline] - fn exp2(self) -> f32 { num::Float::exp2(self) } - #[inline] - fn ln(self) -> f32 { num::Float::ln(self) } - #[inline] - fn log(self, base: f32) -> f32 { num::Float::log(self, base) } - #[inline] - fn log2(self) -> f32 { num::Float::log2(self) } - #[inline] - fn log10(self) -> f32 { num::Float::log10(self) } - #[inline] - fn to_degrees(self) -> f32 { num::Float::to_degrees(self) } - #[inline] - fn to_radians(self) -> f32 { num::Float::to_radians(self) } - - /// Constructs a floating point number by multiplying `x` by 2 raised to the - /// power of `exp` - #[inline] - fn ldexp(self, exp: isize) -> f32 { - unsafe { cmath::ldexpf(self, exp as c_int) } - } - - /// Breaks the number into a normalized fraction and a base-2 exponent, - /// satisfying: - /// - /// - `self = x * pow(2, exp)` - /// - `0.5 <= abs(x) < 1.0` - #[inline] - fn frexp(self) -> (f32, isize) { - unsafe { - let mut exp = 0; - let x = cmath::frexpf(self, &mut exp); - (x, exp as isize) - } - } - - /// Returns the next representable floating-point value in the direction of - /// `other`. - #[inline] - fn next_after(self, other: f32) -> f32 { - unsafe { cmath::nextafterf(self, other) } - } - - #[inline] - fn max(self, other: f32) -> f32 { - unsafe { cmath::fmaxf(self, other) } - } - - #[inline] - fn min(self, other: f32) -> f32 { - unsafe { cmath::fminf(self, other) } - } - - #[inline] - fn abs_sub(self, other: f32) -> f32 { - unsafe { cmath::fdimf(self, other) } - } - - #[inline] - fn cbrt(self) -> f32 { - unsafe { cmath::cbrtf(self) } - } - - #[inline] - fn hypot(self, other: f32) -> f32 { - unsafe { cmath::hypotf(self, other) } - } - - #[inline] - fn sin(self) -> f32 { - unsafe { intrinsics::sinf32(self) } - } - - #[inline] - fn cos(self) -> f32 { - unsafe { intrinsics::cosf32(self) } - } - - #[inline] - fn tan(self) -> f32 { - unsafe { cmath::tanf(self) } - } - - #[inline] - fn asin(self) -> f32 { - unsafe { cmath::asinf(self) } - } - - #[inline] - fn acos(self) -> f32 { - unsafe { cmath::acosf(self) } - } - - #[inline] - fn atan(self) -> f32 { - unsafe { cmath::atanf(self) } - } - - #[inline] - fn atan2(self, other: f32) -> f32 { - unsafe { cmath::atan2f(self, other) } - } - - /// Simultaneously computes the sine and cosine of the number - #[inline] - fn sin_cos(self) -> (f32, f32) { - (self.sin(), self.cos()) - } - - /// Returns the exponential of the number, minus `1`, in a way that is - /// accurate even if the number is close to zero - #[inline] - fn exp_m1(self) -> f32 { - unsafe { cmath::expm1f(self) } - } - - /// Returns the natural logarithm of the number plus `1` (`ln(1+n)`) more - /// accurately than if the operations were performed separately - #[inline] - fn ln_1p(self) -> f32 { - unsafe { cmath::log1pf(self) } - } - - #[inline] - fn sinh(self) -> f32 { - unsafe { cmath::sinhf(self) } - } - - #[inline] - fn cosh(self) -> f32 { - unsafe { cmath::coshf(self) } - } - - #[inline] - fn tanh(self) -> f32 { - unsafe { cmath::tanhf(self) } - } - - /// Inverse hyperbolic sine - /// - /// # Returns - /// - /// - on success, the inverse hyperbolic sine of `self` will be returned - /// - `self` if `self` is `0.0`, `-0.0`, `INFINITY`, or `NEG_INFINITY` - /// - `NAN` if `self` is `NAN` - #[inline] - fn asinh(self) -> f32 { - match self { - NEG_INFINITY => NEG_INFINITY, - x => (x + ((x * x) + 1.0).sqrt()).ln(), - } - } - - /// Inverse hyperbolic cosine - /// - /// # Returns - /// - /// - on success, the inverse hyperbolic cosine of `self` will be returned - /// - `INFINITY` if `self` is `INFINITY` - /// - `NAN` if `self` is `NAN` or `self < 1.0` (including `NEG_INFINITY`) - #[inline] - fn acosh(self) -> f32 { - match self { - x if x < 1.0 => Float::nan(), - x => (x + ((x * x) - 1.0).sqrt()).ln(), - } - } - - /// Inverse hyperbolic tangent - /// - /// # Returns - /// - /// - on success, the inverse hyperbolic tangent of `self` will be returned - /// - `self` if `self` is `0.0` or `-0.0` - /// - `INFINITY` if `self` is `1.0` - /// - `NEG_INFINITY` if `self` is `-1.0` - /// - `NAN` if the `self` is `NAN` or outside the domain of `-1.0 <= self <= 1.0` - /// (including `INFINITY` and `NEG_INFINITY`) - #[inline] - fn atanh(self) -> f32 { - 0.5 * ((2.0 * self) / (1.0 - self)).ln_1p() - } -} - #[cfg(not(test))] #[lang = "f32"] #[stable(feature = "rust1", since = "1.0.0")] impl f32 { + /// Parses a float as with a given radix + #[unstable(feature = "float_from_str_radix", reason = "recently moved API")] + pub fn from_str_radix(s: &str, radix: u32) -> Result<f32, ParseFloatError> { + num::Float::from_str_radix(s, radix).map_err(FromInner::from_inner) + } + /// Returns `true` if this value is `NaN` and false otherwise. /// /// ``` @@ -617,11 +335,6 @@ impl f32 { #[inline] pub fn is_sign_positive(self) -> bool { num::Float::is_positive(self) } - #[stable(feature = "rust1", since = "1.0.0")] - #[deprecated(since = "1.0.0", reason = "renamed to is_sign_positive")] - #[inline] - pub fn is_positive(self) -> bool { num::Float::is_positive(self) } - /// Returns `true` if `self`'s sign is negative, including `-0.0` /// and `NEG_INFINITY`. /// @@ -641,11 +354,6 @@ impl f32 { #[inline] pub fn is_sign_negative(self) -> bool { num::Float::is_negative(self) } - #[stable(feature = "rust1", since = "1.0.0")] - #[deprecated(since = "1.0.0", reason = "renamed to is_sign_negative")] - #[inline] - pub fn is_negative(self) -> bool { num::Float::is_negative(self) } - /// Fused multiply-add. Computes `(self * a) + b` with only one rounding /// error. This produces a more accurate result with better performance than /// a separate multiplication operation followed by an add. @@ -729,24 +437,6 @@ impl f32 { #[inline] pub fn sqrt(self) -> f32 { num::Float::sqrt(self) } - /// Takes the reciprocal (inverse) square root of a number, `1/sqrt(x)`. - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::f32; - /// - /// let f = 4.0f32; - /// - /// let abs_difference = (f.rsqrt() - 0.5).abs(); - /// - /// assert!(abs_difference <= f32::EPSILON); - /// ``` - #[unstable(feature = "std_misc", - reason = "unsure about its place in the world")] - #[deprecated(since = "1.0.0", reason = "use self.sqrt().recip() instead")] - #[inline] - pub fn rsqrt(self) -> f32 { num::Float::rsqrt(self) } - /// Returns `e^(self)`, (the exponential function). /// /// ``` @@ -1339,7 +1029,7 @@ impl f32 { #[inline] pub fn acosh(self) -> f32 { match self { - x if x < 1.0 => Float::nan(), + x if x < 1.0 => ::f32::NAN, x => (x + ((x * x) - 1.0).sqrt()).ln(), } } @@ -1363,116 +1053,9 @@ impl f32 { } } -// -// Section: String Conversions -// - -/// Converts a float to a string -/// -/// # Arguments -/// -/// * num - The float value -#[inline] -#[unstable(feature = "std_misc", reason = "may be removed or relocated")] -#[deprecated(since = "1.0.0", reason = "use the ToString trait instead")] -pub fn to_string(num: f32) -> String { - let (r, _) = strconv::float_to_str_common( - num, 10, true, SignNeg, DigAll, ExpNone, false); - r -} - -/// Converts a float to a string in hexadecimal format -/// -/// # Arguments -/// -/// * num - The float value -#[inline] -#[unstable(feature = "std_misc", reason = "may be removed or relocated")] -#[deprecated(since = "1.0.0", reason = "use format! instead")] -pub fn to_str_hex(num: f32) -> String { - let (r, _) = strconv::float_to_str_common( - num, 16, true, SignNeg, DigAll, ExpNone, false); - r -} - -/// Converts a float to a string in a given radix, and a flag indicating -/// whether it's a special value -/// -/// # Arguments -/// -/// * num - The float value -/// * radix - The base to use -#[inline] -#[unstable(feature = "std_misc", reason = "may be removed or relocated")] -#[deprecated(since = "1.0.0", reason = "use format! instead")] -pub fn to_str_radix_special(num: f32, rdx: u32) -> (String, bool) { - strconv::float_to_str_common(num, rdx, true, SignNeg, DigAll, ExpNone, false) -} - -/// Converts a float to a string with exactly the number of -/// provided significant digits -/// -/// # Arguments -/// -/// * num - The float value -/// * digits - The number of significant digits -#[inline] -#[unstable(feature = "std_misc", reason = "may be removed or relocated")] -pub fn to_str_exact(num: f32, dig: usize) -> String { - let (r, _) = strconv::float_to_str_common( - num, 10, true, SignNeg, DigExact(dig), ExpNone, false); - r -} - -/// Converts a float to a string with a maximum number of -/// significant digits -/// -/// # Arguments -/// -/// * num - The float value -/// * digits - The number of significant digits -#[inline] -#[unstable(feature = "std_misc", reason = "may be removed or relocated")] -pub fn to_str_digits(num: f32, dig: usize) -> String { - let (r, _) = strconv::float_to_str_common( - num, 10, true, SignNeg, DigMax(dig), ExpNone, false); - r -} - -/// Converts a float to a string using the exponential notation with exactly the number of -/// provided digits after the decimal point in the significand -/// -/// # Arguments -/// -/// * num - The float value -/// * digits - The number of digits after the decimal point -/// * upper - Use `E` instead of `e` for the exponent sign -#[inline] -#[unstable(feature = "std_misc", reason = "may be removed or relocated")] -pub fn to_str_exp_exact(num: f32, dig: usize, upper: bool) -> String { - let (r, _) = strconv::float_to_str_common( - num, 10, true, SignNeg, DigExact(dig), ExpDec, upper); - r -} - -/// Converts a float to a string using the exponential notation with the maximum number of -/// digits after the decimal point in the significand -/// -/// # Arguments -/// -/// * num - The float value -/// * digits - The number of digits after the decimal point -/// * upper - Use `E` instead of `e` for the exponent sign -#[inline] -#[unstable(feature = "std_misc", reason = "may be removed or relocated")] -pub fn to_str_exp_digits(num: f32, dig: usize, upper: bool) -> String { - let (r, _) = strconv::float_to_str_common( - num, 10, true, SignNeg, DigMax(dig), ExpDec, upper); - r -} - #[cfg(test)] mod tests { + use f32; use f32::*; use num::*; use num::FpCategory as Fp; @@ -1496,7 +1079,7 @@ mod tests { #[test] fn test_nan() { - let nan: f32 = Float::nan(); + let nan: f32 = f32::NAN; assert!(nan.is_nan()); assert!(!nan.is_infinite()); assert!(!nan.is_finite()); @@ -1508,7 +1091,7 @@ mod tests { #[test] fn test_infinity() { - let inf: f32 = Float::infinity(); + let inf: f32 = f32::INFINITY; assert!(inf.is_infinite()); assert!(!inf.is_finite()); assert!(inf.is_sign_positive()); @@ -1520,7 +1103,7 @@ mod tests { #[test] fn test_neg_infinity() { - let neg_inf: f32 = Float::neg_infinity(); + let neg_inf: f32 = f32::NEG_INFINITY; assert!(neg_inf.is_infinite()); assert!(!neg_inf.is_finite()); assert!(!neg_inf.is_sign_positive()); @@ -1532,7 +1115,7 @@ mod tests { #[test] fn test_zero() { - let zero: f32 = Float::zero(); + let zero: f32 = 0.0f32; assert_eq!(0.0, zero); assert!(!zero.is_infinite()); assert!(zero.is_finite()); @@ -1545,7 +1128,7 @@ mod tests { #[test] fn test_neg_zero() { - let neg_zero: f32 = Float::neg_zero(); + let neg_zero: f32 = -0.0; assert_eq!(0.0, neg_zero); assert!(!neg_zero.is_infinite()); assert!(neg_zero.is_finite()); @@ -1558,7 +1141,7 @@ mod tests { #[test] fn test_one() { - let one: f32 = Float::one(); + let one: f32 = 1.0f32; assert_eq!(1.0, one); assert!(!one.is_infinite()); assert!(one.is_finite()); @@ -1571,9 +1154,9 @@ mod tests { #[test] fn test_is_nan() { - let nan: f32 = Float::nan(); - let inf: f32 = Float::infinity(); - let neg_inf: f32 = Float::neg_infinity(); + let nan: f32 = f32::NAN; + let inf: f32 = f32::INFINITY; + let neg_inf: f32 = f32::NEG_INFINITY; assert!(nan.is_nan()); assert!(!0.0f32.is_nan()); assert!(!5.3f32.is_nan()); @@ -1584,9 +1167,9 @@ mod tests { #[test] fn test_is_infinite() { - let nan: f32 = Float::nan(); - let inf: f32 = Float::infinity(); - let neg_inf: f32 = Float::neg_infinity(); + let nan: f32 = f32::NAN; + let inf: f32 = f32::INFINITY; + let neg_inf: f32 = f32::NEG_INFINITY; assert!(!nan.is_infinite()); assert!(inf.is_infinite()); assert!(neg_inf.is_infinite()); @@ -1597,9 +1180,9 @@ mod tests { #[test] fn test_is_finite() { - let nan: f32 = Float::nan(); - let inf: f32 = Float::infinity(); - let neg_inf: f32 = Float::neg_infinity(); + let nan: f32 = f32::NAN; + let inf: f32 = f32::INFINITY; + let neg_inf: f32 = f32::NEG_INFINITY; assert!(!nan.is_finite()); assert!(!inf.is_finite()); assert!(!neg_inf.is_finite()); @@ -1610,11 +1193,11 @@ mod tests { #[test] fn test_is_normal() { - let nan: f32 = Float::nan(); - let inf: f32 = Float::infinity(); - let neg_inf: f32 = Float::neg_infinity(); - let zero: f32 = Float::zero(); - let neg_zero: f32 = Float::neg_zero(); + let nan: f32 = f32::NAN; + let inf: f32 = f32::INFINITY; + let neg_inf: f32 = f32::NEG_INFINITY; + let zero: f32 = 0.0f32; + let neg_zero: f32 = -0.0; assert!(!nan.is_normal()); assert!(!inf.is_normal()); assert!(!neg_inf.is_normal()); @@ -1627,11 +1210,11 @@ mod tests { #[test] fn test_classify() { - let nan: f32 = Float::nan(); - let inf: f32 = Float::infinity(); - let neg_inf: f32 = Float::neg_infinity(); - let zero: f32 = Float::zero(); - let neg_zero: f32 = Float::neg_zero(); + let nan: f32 = f32::NAN; + let inf: f32 = f32::INFINITY; + let neg_inf: f32 = f32::NEG_INFINITY; + let zero: f32 = 0.0f32; + let neg_zero: f32 = -0.0; assert_eq!(nan.classify(), Fp::Nan); assert_eq!(inf.classify(), Fp::Infinite); assert_eq!(neg_inf.classify(), Fp::Infinite); @@ -1774,9 +1357,9 @@ mod tests { #[test] fn test_mul_add() { - let nan: f32 = Float::nan(); - let inf: f32 = Float::infinity(); - let neg_inf: f32 = Float::neg_infinity(); + let nan: f32 = f32::NAN; + let inf: f32 = f32::INFINITY; + let neg_inf: f32 = f32::NEG_INFINITY; assert_approx_eq!(12.3f32.mul_add(4.5, 6.7), 62.05); assert_approx_eq!((-12.3f32).mul_add(-4.5, -6.7), 48.65); assert_approx_eq!(0.0f32.mul_add(8.9, 1.2), 1.2); @@ -1790,9 +1373,9 @@ mod tests { #[test] fn test_recip() { - let nan: f32 = Float::nan(); - let inf: f32 = Float::infinity(); - let neg_inf: f32 = Float::neg_infinity(); + let nan: f32 = f32::NAN; + let inf: f32 = f32::INFINITY; + let neg_inf: f32 = f32::NEG_INFINITY; assert_eq!(1.0f32.recip(), 1.0); assert_eq!(2.0f32.recip(), 0.5); assert_eq!((-0.4f32).recip(), -2.5); @@ -1804,9 +1387,9 @@ mod tests { #[test] fn test_powi() { - let nan: f32 = Float::nan(); - let inf: f32 = Float::infinity(); - let neg_inf: f32 = Float::neg_infinity(); + let nan: f32 = f32::NAN; + let inf: f32 = f32::INFINITY; + let neg_inf: f32 = f32::NEG_INFINITY; assert_eq!(1.0f32.powi(1), 1.0); assert_approx_eq!((-3.1f32).powi(2), 9.61); assert_approx_eq!(5.9f32.powi(-2), 0.028727); @@ -1818,9 +1401,9 @@ mod tests { #[test] fn test_powf() { - let nan: f32 = Float::nan(); - let inf: f32 = Float::infinity(); - let neg_inf: f32 = Float::neg_infinity(); + let nan: f32 = f32::NAN; + let inf: f32 = f32::INFINITY; + let neg_inf: f32 = f32::NEG_INFINITY; assert_eq!(1.0f32.powf(1.0), 1.0); assert_approx_eq!(3.4f32.powf(4.5), 246.408218); assert_approx_eq!(2.7f32.powf(-3.2), 0.041652); @@ -1844,29 +1427,14 @@ mod tests { } #[test] - fn test_rsqrt() { - let nan: f32 = Float::nan(); - let inf: f32 = Float::infinity(); - let neg_inf: f32 = Float::neg_infinity(); - assert!(nan.rsqrt().is_nan()); - assert_eq!(inf.rsqrt(), 0.0); - assert!(neg_inf.rsqrt().is_nan()); - assert!((-1.0f32).rsqrt().is_nan()); - assert_eq!((-0.0f32).rsqrt(), neg_inf); - assert_eq!(0.0f32.rsqrt(), inf); - assert_eq!(1.0f32.rsqrt(), 1.0); - assert_eq!(4.0f32.rsqrt(), 0.5); - } - - #[test] fn test_exp() { assert_eq!(1.0, 0.0f32.exp()); assert_approx_eq!(2.718282, 1.0f32.exp()); assert_approx_eq!(148.413162, 5.0f32.exp()); - let inf: f32 = Float::infinity(); - let neg_inf: f32 = Float::neg_infinity(); - let nan: f32 = Float::nan(); + let inf: f32 = f32::INFINITY; + let neg_inf: f32 = f32::NEG_INFINITY; + let nan: f32 = f32::NAN; assert_eq!(inf, inf.exp()); assert_eq!(0.0, neg_inf.exp()); assert!(nan.exp().is_nan()); @@ -1877,9 +1445,9 @@ mod tests { assert_eq!(32.0, 5.0f32.exp2()); assert_eq!(1.0, 0.0f32.exp2()); - let inf: f32 = Float::infinity(); - let neg_inf: f32 = Float::neg_infinity(); - let nan: f32 = Float::nan(); + let inf: f32 = f32::INFINITY; + let neg_inf: f32 = f32::NEG_INFINITY; + let nan: f32 = f32::NAN; assert_eq!(inf, inf.exp2()); assert_eq!(0.0, neg_inf.exp2()); assert!(nan.exp2().is_nan()); @@ -1887,9 +1455,9 @@ mod tests { #[test] fn test_ln() { - let nan: f32 = Float::nan(); - let inf: f32 = Float::infinity(); - let neg_inf: f32 = Float::neg_infinity(); + let nan: f32 = f32::NAN; + let inf: f32 = f32::INFINITY; + let neg_inf: f32 = f32::NEG_INFINITY; assert_approx_eq!(1.0f32.exp().ln(), 1.0); assert!(nan.ln().is_nan()); assert_eq!(inf.ln(), inf); @@ -1902,12 +1470,12 @@ mod tests { #[test] fn test_log() { - let nan: f32 = Float::nan(); - let inf: f32 = Float::infinity(); - let neg_inf: f32 = Float::neg_infinity(); + let nan: f32 = f32::NAN; + let inf: f32 = f32::INFINITY; + let neg_inf: f32 = f32::NEG_INFINITY; assert_eq!(10.0f32.log(10.0), 1.0); assert_approx_eq!(2.3f32.log(3.5), 0.664858); - assert_eq!(1.0f32.exp().log(1.0.exp()), 1.0); + assert_eq!(1.0f32.exp().log(1.0f32.exp()), 1.0); assert!(1.0f32.log(1.0).is_nan()); assert!(1.0f32.log(-13.9).is_nan()); assert!(nan.log(2.3).is_nan()); @@ -1920,9 +1488,9 @@ mod tests { #[test] fn test_log2() { - let nan: f32 = Float::nan(); - let inf: f32 = Float::infinity(); - let neg_inf: f32 = Float::neg_infinity(); + let nan: f32 = f32::NAN; + let inf: f32 = f32::INFINITY; + let neg_inf: f32 = f32::NEG_INFINITY; assert_approx_eq!(10.0f32.log2(), 3.321928); assert_approx_eq!(2.3f32.log2(), 1.201634); assert_approx_eq!(1.0f32.exp().log2(), 1.442695); @@ -1936,9 +1504,9 @@ mod tests { #[test] fn test_log10() { - let nan: f32 = Float::nan(); - let inf: f32 = Float::infinity(); - let neg_inf: f32 = Float::neg_infinity(); + let nan: f32 = f32::NAN; + let inf: f32 = f32::INFINITY; + let neg_inf: f32 = f32::NEG_INFINITY; assert_eq!(10.0f32.log10(), 1.0); assert_approx_eq!(2.3f32.log10(), 0.361728); assert_approx_eq!(1.0f32.exp().log10(), 0.434294); @@ -1954,9 +1522,9 @@ mod tests { #[test] fn test_to_degrees() { let pi: f32 = consts::PI; - let nan: f32 = Float::nan(); - let inf: f32 = Float::infinity(); - let neg_inf: f32 = Float::neg_infinity(); + let nan: f32 = f32::NAN; + let inf: f32 = f32::INFINITY; + let neg_inf: f32 = f32::NEG_INFINITY; assert_eq!(0.0f32.to_degrees(), 0.0); assert_approx_eq!((-5.8f32).to_degrees(), -332.315521); assert_eq!(pi.to_degrees(), 180.0); @@ -1968,9 +1536,9 @@ mod tests { #[test] fn test_to_radians() { let pi: f32 = consts::PI; - let nan: f32 = Float::nan(); - let inf: f32 = Float::infinity(); - let neg_inf: f32 = Float::neg_infinity(); + let nan: f32 = f32::NAN; + let inf: f32 = f32::INFINITY; + let neg_inf: f32 = f32::NEG_INFINITY; assert_eq!(0.0f32.to_radians(), 0.0); assert_approx_eq!(154.6f32.to_radians(), 2.698279); assert_approx_eq!((-332.31f32).to_radians(), -5.799903); @@ -1984,40 +1552,40 @@ mod tests { fn test_ldexp() { // We have to use from_str until base-2 exponents // are supported in floating-point literals - let f1: f32 = FromStrRadix::from_str_radix("1p-123", 16).unwrap(); - let f2: f32 = FromStrRadix::from_str_radix("1p-111", 16).unwrap(); - let f3: f32 = FromStrRadix::from_str_radix("1.Cp-12", 16).unwrap(); - assert_eq!(1f32.ldexp(-123), f1); - assert_eq!(1f32.ldexp(-111), f2); - assert_eq!(Float::ldexp(1.75f32, -12), f3); + let f1: f32 = f32::from_str_radix("1p-123", 16).unwrap(); + let f2: f32 = f32::from_str_radix("1p-111", 16).unwrap(); + let f3: f32 = f32::from_str_radix("1.Cp-12", 16).unwrap(); + assert_eq!(f32::ldexp(1f32, -123), f1); + assert_eq!(f32::ldexp(1f32, -111), f2); + assert_eq!(f32::ldexp(1.75f32, -12), f3); - assert_eq!(Float::ldexp(0f32, -123), 0f32); - assert_eq!(Float::ldexp(-0f32, -123), -0f32); + assert_eq!(f32::ldexp(0f32, -123), 0f32); + assert_eq!(f32::ldexp(-0f32, -123), -0f32); - let inf: f32 = Float::infinity(); - let neg_inf: f32 = Float::neg_infinity(); - let nan: f32 = Float::nan(); - assert_eq!(Float::ldexp(inf, -123), inf); - assert_eq!(Float::ldexp(neg_inf, -123), neg_inf); - assert!(Float::ldexp(nan, -123).is_nan()); + let inf: f32 = f32::INFINITY; + let neg_inf: f32 = f32::NEG_INFINITY; + let nan: f32 = f32::NAN; + assert_eq!(f32::ldexp(inf, -123), inf); + assert_eq!(f32::ldexp(neg_inf, -123), neg_inf); + assert!(f32::ldexp(nan, -123).is_nan()); } #[test] fn test_frexp() { // We have to use from_str until base-2 exponents // are supported in floating-point literals - let f1: f32 = FromStrRadix::from_str_radix("1p-123", 16).unwrap(); - let f2: f32 = FromStrRadix::from_str_radix("1p-111", 16).unwrap(); - let f3: f32 = FromStrRadix::from_str_radix("1.Cp-123", 16).unwrap(); + let f1: f32 = f32::from_str_radix("1p-123", 16).unwrap(); + let f2: f32 = f32::from_str_radix("1p-111", 16).unwrap(); + let f3: f32 = f32::from_str_radix("1.Cp-123", 16).unwrap(); let (x1, exp1) = f1.frexp(); let (x2, exp2) = f2.frexp(); let (x3, exp3) = f3.frexp(); assert_eq!((x1, exp1), (0.5f32, -122)); assert_eq!((x2, exp2), (0.5f32, -110)); assert_eq!((x3, exp3), (0.875f32, -122)); - assert_eq!(Float::ldexp(x1, exp1), f1); - assert_eq!(Float::ldexp(x2, exp2), f2); - assert_eq!(Float::ldexp(x3, exp3), f3); + assert_eq!(f32::ldexp(x1, exp1), f1); + assert_eq!(f32::ldexp(x2, exp2), f2); + assert_eq!(f32::ldexp(x3, exp3), f3); assert_eq!(0f32.frexp(), (0f32, 0)); assert_eq!((-0f32).frexp(), (-0f32, 0)); @@ -2025,9 +1593,9 @@ mod tests { #[test] #[cfg_attr(windows, ignore)] // FIXME #8755 fn test_frexp_nowin() { - let inf: f32 = Float::infinity(); - let neg_inf: f32 = Float::neg_infinity(); - let nan: f32 = Float::nan(); + let inf: f32 = f32::INFINITY; + let neg_inf: f32 = f32::NEG_INFINITY; + let nan: f32 = f32::NAN; assert_eq!(match inf.frexp() { (x, _) => x }, inf); assert_eq!(match neg_inf.frexp() { (x, _) => x }, neg_inf); assert!(match nan.frexp() { (x, _) => x.is_nan() }) @@ -2056,9 +1624,9 @@ mod tests { assert_eq!(0.0f32.asinh(), 0.0f32); assert_eq!((-0.0f32).asinh(), -0.0f32); - let inf: f32 = Float::infinity(); - let neg_inf: f32 = Float::neg_infinity(); - let nan: f32 = Float::nan(); + let inf: f32 = f32::INFINITY; + let neg_inf: f32 = f32::NEG_INFINITY; + let nan: f32 = f32::NAN; assert_eq!(inf.asinh(), inf); assert_eq!(neg_inf.asinh(), neg_inf); assert!(nan.asinh().is_nan()); @@ -2071,9 +1639,9 @@ mod tests { assert_eq!(1.0f32.acosh(), 0.0f32); assert!(0.999f32.acosh().is_nan()); - let inf: f32 = Float::infinity(); - let neg_inf: f32 = Float::neg_infinity(); - let nan: f32 = Float::nan(); + let inf: f32 = f32::INFINITY; + let neg_inf: f32 = f32::NEG_INFINITY; + let nan: f32 = f32::NAN; assert_eq!(inf.acosh(), inf); assert!(neg_inf.acosh().is_nan()); assert!(nan.acosh().is_nan()); @@ -2086,17 +1654,17 @@ mod tests { assert_eq!(0.0f32.atanh(), 0.0f32); assert_eq!((-0.0f32).atanh(), -0.0f32); - let inf32: f32 = Float::infinity(); - let neg_inf32: f32 = Float::neg_infinity(); + let inf32: f32 = f32::INFINITY; + let neg_inf32: f32 = f32::NEG_INFINITY; assert_eq!(1.0f32.atanh(), inf32); assert_eq!((-1.0f32).atanh(), neg_inf32); assert!(2f64.atanh().atanh().is_nan()); assert!((-2f64).atanh().atanh().is_nan()); - let inf64: f32 = Float::infinity(); - let neg_inf64: f32 = Float::neg_infinity(); - let nan32: f32 = Float::nan(); + let inf64: f32 = f32::INFINITY; + let neg_inf64: f32 = f32::NEG_INFINITY; + let nan32: f32 = f32::NAN; assert!(inf64.atanh().is_nan()); assert!(neg_inf64.atanh().is_nan()); assert!(nan32.atanh().is_nan()); @@ -2118,9 +1686,9 @@ mod tests { let frac_pi_8: f32 = consts::FRAC_PI_8; let frac_1_pi: f32 = consts::FRAC_1_PI; let frac_2_pi: f32 = consts::FRAC_2_PI; - let frac_2_sqrtpi: f32 = consts::FRAC_2_SQRTPI; - let sqrt2: f32 = consts::SQRT2; - let frac_1_sqrt2: f32 = consts::FRAC_1_SQRT2; + let frac_2_sqrtpi: f32 = consts::FRAC_2_SQRT_PI; + let sqrt2: f32 = consts::SQRT_2; + let frac_1_sqrt2: f32 = consts::FRAC_1_SQRT_2; let e: f32 = consts::E; let log2_e: f32 = consts::LOG2_E; let log10_e: f32 = consts::LOG10_E; diff --git a/src/libstd/num/f64.rs b/src/libstd/num/f64.rs index bb9067eca13..e1497f3958d 100644 --- a/src/libstd/num/f64.rs +++ b/src/libstd/num/f64.rs @@ -16,18 +16,14 @@ use prelude::v1::*; +use core::num; use intrinsics; use libc::c_int; -use num::{Float, FpCategory}; -use num::strconv; -use num::strconv::ExponentFormat::{ExpNone, ExpDec}; -use num::strconv::SignificantDigits::{DigAll, DigMax, DigExact}; -use num::strconv::SignFormat::SignNeg; - -use core::num; +use num::{FpCategory, ParseFloatError}; +use sys_common::FromInner; -pub use core::f64::{RADIX, MANTISSA_DIGITS, DIGITS, EPSILON, MIN_VALUE}; -pub use core::f64::{MIN_POS_VALUE, MAX_VALUE, MIN_EXP, MAX_EXP, MIN_10_EXP}; +pub use core::f64::{RADIX, MANTISSA_DIGITS, DIGITS, EPSILON}; +pub use core::f64::{MIN_EXP, MAX_EXP, MIN_10_EXP}; pub use core::f64::{MAX_10_EXP, NAN, INFINITY, NEG_INFINITY}; pub use core::f64::{MIN, MIN_POSITIVE, MAX}; pub use core::f64::consts; @@ -82,295 +78,16 @@ mod cmath { } } -#[stable(feature = "rust1", since = "1.0.0")] -#[allow(deprecated)] -impl Float for f64 { - // inlined methods from `num::Float` - #[inline] - fn nan() -> f64 { num::Float::nan() } - #[inline] - fn infinity() -> f64 { num::Float::infinity() } - #[inline] - fn neg_infinity() -> f64 { num::Float::neg_infinity() } - #[inline] - fn zero() -> f64 { num::Float::zero() } - #[inline] - fn neg_zero() -> f64 { num::Float::neg_zero() } - #[inline] - fn one() -> f64 { num::Float::one() } - - - #[allow(deprecated)] - #[inline] - fn mantissa_digits(unused_self: Option<f64>) -> usize { - num::Float::mantissa_digits(unused_self) - } - #[allow(deprecated)] - #[inline] - fn digits(unused_self: Option<f64>) -> usize { num::Float::digits(unused_self) } - #[allow(deprecated)] - #[inline] - fn epsilon() -> f64 { num::Float::epsilon() } - #[allow(deprecated)] - #[inline] - fn min_exp(unused_self: Option<f64>) -> isize { num::Float::min_exp(unused_self) } - #[allow(deprecated)] - #[inline] - fn max_exp(unused_self: Option<f64>) -> isize { num::Float::max_exp(unused_self) } - #[allow(deprecated)] - #[inline] - fn min_10_exp(unused_self: Option<f64>) -> isize { num::Float::min_10_exp(unused_self) } - #[allow(deprecated)] - #[inline] - fn max_10_exp(unused_self: Option<f64>) -> isize { num::Float::max_10_exp(unused_self) } - #[allow(deprecated)] - #[inline] - fn min_value() -> f64 { num::Float::min_value() } - #[allow(deprecated)] - #[inline] - fn min_pos_value(unused_self: Option<f64>) -> f64 { num::Float::min_pos_value(unused_self) } - #[allow(deprecated)] - #[inline] - fn max_value() -> f64 { num::Float::max_value() } - - #[inline] - fn is_nan(self) -> bool { num::Float::is_nan(self) } - #[inline] - fn is_infinite(self) -> bool { num::Float::is_infinite(self) } - #[inline] - fn is_finite(self) -> bool { num::Float::is_finite(self) } - #[inline] - fn is_normal(self) -> bool { num::Float::is_normal(self) } - #[inline] - fn classify(self) -> FpCategory { num::Float::classify(self) } - - #[inline] - fn integer_decode(self) -> (u64, i16, i8) { num::Float::integer_decode(self) } - - #[inline] - fn floor(self) -> f64 { num::Float::floor(self) } - #[inline] - fn ceil(self) -> f64 { num::Float::ceil(self) } - #[inline] - fn round(self) -> f64 { num::Float::round(self) } - #[inline] - fn trunc(self) -> f64 { num::Float::trunc(self) } - #[inline] - fn fract(self) -> f64 { num::Float::fract(self) } - - #[inline] - fn abs(self) -> f64 { num::Float::abs(self) } - #[inline] - fn signum(self) -> f64 { num::Float::signum(self) } - #[inline] - fn is_positive(self) -> bool { num::Float::is_positive(self) } - #[inline] - fn is_negative(self) -> bool { num::Float::is_negative(self) } - - #[inline] - fn mul_add(self, a: f64, b: f64) -> f64 { num::Float::mul_add(self, a, b) } - #[inline] - fn recip(self) -> f64 { num::Float::recip(self) } - - #[inline] - fn powi(self, n: i32) -> f64 { num::Float::powi(self, n) } - #[inline] - fn powf(self, n: f64) -> f64 { num::Float::powf(self, n) } - - #[inline] - fn sqrt(self) -> f64 { num::Float::sqrt(self) } - #[inline] - fn rsqrt(self) -> f64 { num::Float::rsqrt(self) } - - #[inline] - fn exp(self) -> f64 { num::Float::exp(self) } - #[inline] - fn exp2(self) -> f64 { num::Float::exp2(self) } - #[inline] - fn ln(self) -> f64 { num::Float::ln(self) } - #[inline] - fn log(self, base: f64) -> f64 { num::Float::log(self, base) } - #[inline] - fn log2(self) -> f64 { num::Float::log2(self) } - #[inline] - fn log10(self) -> f64 { num::Float::log10(self) } - - #[inline] - fn to_degrees(self) -> f64 { num::Float::to_degrees(self) } - #[inline] - fn to_radians(self) -> f64 { num::Float::to_radians(self) } - - #[inline] - fn ldexp(self, exp: isize) -> f64 { - unsafe { cmath::ldexp(self, exp as c_int) } - } - - /// Breaks the number into a normalized fraction and a base-2 exponent, - /// satisfying: - /// - /// - `self = x * pow(2, exp)` - /// - `0.5 <= abs(x) < 1.0` - #[inline] - fn frexp(self) -> (f64, isize) { - unsafe { - let mut exp = 0; - let x = cmath::frexp(self, &mut exp); - (x, exp as isize) - } - } - - /// Returns the next representable floating-point value in the direction of - /// `other`. - #[inline] - fn next_after(self, other: f64) -> f64 { - unsafe { cmath::nextafter(self, other) } - } - - #[inline] - fn max(self, other: f64) -> f64 { - unsafe { cmath::fmax(self, other) } - } - - #[inline] - fn min(self, other: f64) -> f64 { - unsafe { cmath::fmin(self, other) } - } - - #[inline] - fn abs_sub(self, other: f64) -> f64 { - unsafe { cmath::fdim(self, other) } - } - - #[inline] - fn cbrt(self) -> f64 { - unsafe { cmath::cbrt(self) } - } - - #[inline] - fn hypot(self, other: f64) -> f64 { - unsafe { cmath::hypot(self, other) } - } - - #[inline] - fn sin(self) -> f64 { - unsafe { intrinsics::sinf64(self) } - } - - #[inline] - fn cos(self) -> f64 { - unsafe { intrinsics::cosf64(self) } - } - - #[inline] - fn tan(self) -> f64 { - unsafe { cmath::tan(self) } - } - - #[inline] - fn asin(self) -> f64 { - unsafe { cmath::asin(self) } - } - - #[inline] - fn acos(self) -> f64 { - unsafe { cmath::acos(self) } - } - - #[inline] - fn atan(self) -> f64 { - unsafe { cmath::atan(self) } - } - - #[inline] - fn atan2(self, other: f64) -> f64 { - unsafe { cmath::atan2(self, other) } - } - - /// Simultaneously computes the sine and cosine of the number - #[inline] - fn sin_cos(self) -> (f64, f64) { - (self.sin(), self.cos()) - } - - /// Returns the exponential of the number, minus `1`, in a way that is - /// accurate even if the number is close to zero - #[inline] - fn exp_m1(self) -> f64 { - unsafe { cmath::expm1(self) } - } - - /// Returns the natural logarithm of the number plus `1` (`ln(1+n)`) more - /// accurately than if the operations were performed separately - #[inline] - fn ln_1p(self) -> f64 { - unsafe { cmath::log1p(self) } - } - - #[inline] - fn sinh(self) -> f64 { - unsafe { cmath::sinh(self) } - } - - #[inline] - fn cosh(self) -> f64 { - unsafe { cmath::cosh(self) } - } - - #[inline] - fn tanh(self) -> f64 { - unsafe { cmath::tanh(self) } - } - - /// Inverse hyperbolic sine - /// - /// # Returns - /// - /// - on success, the inverse hyperbolic sine of `self` will be returned - /// - `self` if `self` is `0.0`, `-0.0`, `INFINITY`, or `NEG_INFINITY` - /// - `NAN` if `self` is `NAN` - #[inline] - fn asinh(self) -> f64 { - match self { - NEG_INFINITY => NEG_INFINITY, - x => (x + ((x * x) + 1.0).sqrt()).ln(), - } - } - - /// Inverse hyperbolic cosine - /// - /// # Returns - /// - /// - on success, the inverse hyperbolic cosine of `self` will be returned - /// - `INFINITY` if `self` is `INFINITY` - /// - `NAN` if `self` is `NAN` or `self < 1.0` (including `NEG_INFINITY`) - #[inline] - fn acosh(self) -> f64 { - match self { - x if x < 1.0 => Float::nan(), - x => (x + ((x * x) - 1.0).sqrt()).ln(), - } - } - - /// Inverse hyperbolic tangent - /// - /// # Returns - /// - /// - on success, the inverse hyperbolic tangent of `self` will be returned - /// - `self` if `self` is `0.0` or `-0.0` - /// - `INFINITY` if `self` is `1.0` - /// - `NEG_INFINITY` if `self` is `-1.0` - /// - `NAN` if the `self` is `NAN` or outside the domain of `-1.0 <= self <= 1.0` - /// (including `INFINITY` and `NEG_INFINITY`) - #[inline] - fn atanh(self) -> f64 { - 0.5 * ((2.0 * self) / (1.0 - self)).ln_1p() - } -} - #[cfg(not(test))] #[lang = "f64"] #[stable(feature = "rust1", since = "1.0.0")] impl f64 { + /// Parses a float as with a given radix + #[unstable(feature = "float_from_str_radix", reason = "recently moved API")] + pub fn from_str_radix(s: &str, radix: u32) -> Result<f64, ParseFloatError> { + num::Float::from_str_radix(s, radix).map_err(FromInner::from_inner) + } + /// Returns `true` if this value is `NaN` and false otherwise. /// /// ``` @@ -726,22 +443,6 @@ impl f64 { #[inline] pub fn sqrt(self) -> f64 { num::Float::sqrt(self) } - /// Takes the reciprocal (inverse) square root of a number, `1/sqrt(x)`. - /// - /// ``` - /// # #![feature(std_misc)] - /// let f = 4.0_f64; - /// - /// let abs_difference = (f.rsqrt() - 0.5).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[unstable(feature = "std_misc", - reason = "unsure about its place in the world")] - #[deprecated(since = "1.0.0", reason = "use self.sqrt().recip() instead")] - #[inline] - pub fn rsqrt(self) -> f64 { num::Float::rsqrt(self) } - /// Returns `e^(self)`, (the exponential function). /// /// ``` @@ -1304,7 +1005,7 @@ impl f64 { #[inline] pub fn acosh(self) -> f64 { match self { - x if x < 1.0 => Float::nan(), + x if x < 1.0 => NAN, x => (x + ((x * x) - 1.0).sqrt()).ln(), } } @@ -1328,116 +1029,9 @@ impl f64 { } } -// -// Section: String Conversions -// - -/// Converts a float to a string -/// -/// # Arguments -/// -/// * num - The float value -#[inline] -#[unstable(feature = "std_misc", reason = "may be removed or relocated")] -#[deprecated(since = "1.0.0", reason = "use the ToString trait instead")] -pub fn to_string(num: f64) -> String { - let (r, _) = strconv::float_to_str_common( - num, 10, true, SignNeg, DigAll, ExpNone, false); - r -} - -/// Converts a float to a string in hexadecimal format -/// -/// # Arguments -/// -/// * num - The float value -#[inline] -#[unstable(feature = "std_misc", reason = "may be removed or relocated")] -#[deprecated(since = "1.0.0", reason = "use format! instead")] -pub fn to_str_hex(num: f64) -> String { - let (r, _) = strconv::float_to_str_common( - num, 16, true, SignNeg, DigAll, ExpNone, false); - r -} - -/// Converts a float to a string in a given radix, and a flag indicating -/// whether it's a special value -/// -/// # Arguments -/// -/// * num - The float value -/// * radix - The base to use -#[inline] -#[unstable(feature = "std_misc", reason = "may be removed or relocated")] -#[deprecated(since = "1.0.0", reason = "use format! instead")] -pub fn to_str_radix_special(num: f64, rdx: u32) -> (String, bool) { - strconv::float_to_str_common(num, rdx, true, SignNeg, DigAll, ExpNone, false) -} - -/// Converts a float to a string with exactly the number of -/// provided significant digits -/// -/// # Arguments -/// -/// * num - The float value -/// * digits - The number of significant digits -#[inline] -#[unstable(feature = "std_misc", reason = "may be removed or relocated")] -pub fn to_str_exact(num: f64, dig: usize) -> String { - let (r, _) = strconv::float_to_str_common( - num, 10, true, SignNeg, DigExact(dig), ExpNone, false); - r -} - -/// Converts a float to a string with a maximum number of -/// significant digits -/// -/// # Arguments -/// -/// * num - The float value -/// * digits - The number of significant digits -#[inline] -#[unstable(feature = "std_misc", reason = "may be removed or relocated")] -pub fn to_str_digits(num: f64, dig: usize) -> String { - let (r, _) = strconv::float_to_str_common( - num, 10, true, SignNeg, DigMax(dig), ExpNone, false); - r -} - -/// Converts a float to a string using the exponential notation with exactly the number of -/// provided digits after the decimal point in the significand -/// -/// # Arguments -/// -/// * num - The float value -/// * digits - The number of digits after the decimal point -/// * upper - Use `E` instead of `e` for the exponent sign -#[inline] -#[unstable(feature = "std_misc", reason = "may be removed or relocated")] -pub fn to_str_exp_exact(num: f64, dig: usize, upper: bool) -> String { - let (r, _) = strconv::float_to_str_common( - num, 10, true, SignNeg, DigExact(dig), ExpDec, upper); - r -} - -/// Converts a float to a string using the exponential notation with the maximum number of -/// digits after the decimal point in the significand -/// -/// # Arguments -/// -/// * num - The float value -/// * digits - The number of digits after the decimal point -/// * upper - Use `E` instead of `e` for the exponent sign -#[inline] -#[unstable(feature = "std_misc", reason = "may be removed or relocated")] -pub fn to_str_exp_digits(num: f64, dig: usize, upper: bool) -> String { - let (r, _) = strconv::float_to_str_common( - num, 10, true, SignNeg, DigMax(dig), ExpDec, upper); - r -} - #[cfg(test)] mod tests { + use f64; use f64::*; use num::*; use num::FpCategory as Fp; @@ -1461,7 +1055,7 @@ mod tests { #[test] fn test_nan() { - let nan: f64 = Float::nan(); + let nan: f64 = NAN; assert!(nan.is_nan()); assert!(!nan.is_infinite()); assert!(!nan.is_finite()); @@ -1473,7 +1067,7 @@ mod tests { #[test] fn test_infinity() { - let inf: f64 = Float::infinity(); + let inf: f64 = INFINITY; assert!(inf.is_infinite()); assert!(!inf.is_finite()); assert!(inf.is_sign_positive()); @@ -1485,7 +1079,7 @@ mod tests { #[test] fn test_neg_infinity() { - let neg_inf: f64 = Float::neg_infinity(); + let neg_inf: f64 = NEG_INFINITY; assert!(neg_inf.is_infinite()); assert!(!neg_inf.is_finite()); assert!(!neg_inf.is_sign_positive()); @@ -1497,7 +1091,7 @@ mod tests { #[test] fn test_zero() { - let zero: f64 = Float::zero(); + let zero: f64 = 0.0f64; assert_eq!(0.0, zero); assert!(!zero.is_infinite()); assert!(zero.is_finite()); @@ -1510,7 +1104,7 @@ mod tests { #[test] fn test_neg_zero() { - let neg_zero: f64 = Float::neg_zero(); + let neg_zero: f64 = -0.0; assert_eq!(0.0, neg_zero); assert!(!neg_zero.is_infinite()); assert!(neg_zero.is_finite()); @@ -1523,7 +1117,7 @@ mod tests { #[test] fn test_one() { - let one: f64 = Float::one(); + let one: f64 = 1.0f64; assert_eq!(1.0, one); assert!(!one.is_infinite()); assert!(one.is_finite()); @@ -1536,9 +1130,9 @@ mod tests { #[test] fn test_is_nan() { - let nan: f64 = Float::nan(); - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); + let nan: f64 = NAN; + let inf: f64 = INFINITY; + let neg_inf: f64 = NEG_INFINITY; assert!(nan.is_nan()); assert!(!0.0f64.is_nan()); assert!(!5.3f64.is_nan()); @@ -1549,9 +1143,9 @@ mod tests { #[test] fn test_is_infinite() { - let nan: f64 = Float::nan(); - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); + let nan: f64 = NAN; + let inf: f64 = INFINITY; + let neg_inf: f64 = NEG_INFINITY; assert!(!nan.is_infinite()); assert!(inf.is_infinite()); assert!(neg_inf.is_infinite()); @@ -1562,9 +1156,9 @@ mod tests { #[test] fn test_is_finite() { - let nan: f64 = Float::nan(); - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); + let nan: f64 = NAN; + let inf: f64 = INFINITY; + let neg_inf: f64 = NEG_INFINITY; assert!(!nan.is_finite()); assert!(!inf.is_finite()); assert!(!neg_inf.is_finite()); @@ -1575,11 +1169,11 @@ mod tests { #[test] fn test_is_normal() { - let nan: f64 = Float::nan(); - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); - let zero: f64 = Float::zero(); - let neg_zero: f64 = Float::neg_zero(); + let nan: f64 = NAN; + let inf: f64 = INFINITY; + let neg_inf: f64 = NEG_INFINITY; + let zero: f64 = 0.0f64; + let neg_zero: f64 = -0.0; assert!(!nan.is_normal()); assert!(!inf.is_normal()); assert!(!neg_inf.is_normal()); @@ -1592,11 +1186,11 @@ mod tests { #[test] fn test_classify() { - let nan: f64 = Float::nan(); - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); - let zero: f64 = Float::zero(); - let neg_zero: f64 = Float::neg_zero(); + let nan: f64 = NAN; + let inf: f64 = INFINITY; + let neg_inf: f64 = NEG_INFINITY; + let zero: f64 = 0.0f64; + let neg_zero: f64 = -0.0; assert_eq!(nan.classify(), Fp::Nan); assert_eq!(inf.classify(), Fp::Infinite); assert_eq!(neg_inf.classify(), Fp::Infinite); @@ -1738,9 +1332,9 @@ mod tests { #[test] fn test_mul_add() { - let nan: f64 = Float::nan(); - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); + let nan: f64 = NAN; + let inf: f64 = INFINITY; + let neg_inf: f64 = NEG_INFINITY; assert_approx_eq!(12.3f64.mul_add(4.5, 6.7), 62.05); assert_approx_eq!((-12.3f64).mul_add(-4.5, -6.7), 48.65); assert_approx_eq!(0.0f64.mul_add(8.9, 1.2), 1.2); @@ -1754,9 +1348,9 @@ mod tests { #[test] fn test_recip() { - let nan: f64 = Float::nan(); - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); + let nan: f64 = NAN; + let inf: f64 = INFINITY; + let neg_inf: f64 = NEG_INFINITY; assert_eq!(1.0f64.recip(), 1.0); assert_eq!(2.0f64.recip(), 0.5); assert_eq!((-0.4f64).recip(), -2.5); @@ -1768,9 +1362,9 @@ mod tests { #[test] fn test_powi() { - let nan: f64 = Float::nan(); - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); + let nan: f64 = NAN; + let inf: f64 = INFINITY; + let neg_inf: f64 = NEG_INFINITY; assert_eq!(1.0f64.powi(1), 1.0); assert_approx_eq!((-3.1f64).powi(2), 9.61); assert_approx_eq!(5.9f64.powi(-2), 0.028727); @@ -1782,9 +1376,9 @@ mod tests { #[test] fn test_powf() { - let nan: f64 = Float::nan(); - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); + let nan: f64 = NAN; + let inf: f64 = INFINITY; + let neg_inf: f64 = NEG_INFINITY; assert_eq!(1.0f64.powf(1.0), 1.0); assert_approx_eq!(3.4f64.powf(4.5), 246.408183); assert_approx_eq!(2.7f64.powf(-3.2), 0.041652); @@ -1808,29 +1402,14 @@ mod tests { } #[test] - fn test_rsqrt() { - let nan: f64 = Float::nan(); - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); - assert!(nan.rsqrt().is_nan()); - assert_eq!(inf.rsqrt(), 0.0); - assert!(neg_inf.rsqrt().is_nan()); - assert!((-1.0f64).rsqrt().is_nan()); - assert_eq!((-0.0f64).rsqrt(), neg_inf); - assert_eq!(0.0f64.rsqrt(), inf); - assert_eq!(1.0f64.rsqrt(), 1.0); - assert_eq!(4.0f64.rsqrt(), 0.5); - } - - #[test] fn test_exp() { assert_eq!(1.0, 0.0f64.exp()); assert_approx_eq!(2.718282, 1.0f64.exp()); assert_approx_eq!(148.413159, 5.0f64.exp()); - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); - let nan: f64 = Float::nan(); + let inf: f64 = INFINITY; + let neg_inf: f64 = NEG_INFINITY; + let nan: f64 = NAN; assert_eq!(inf, inf.exp()); assert_eq!(0.0, neg_inf.exp()); assert!(nan.exp().is_nan()); @@ -1841,9 +1420,9 @@ mod tests { assert_eq!(32.0, 5.0f64.exp2()); assert_eq!(1.0, 0.0f64.exp2()); - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); - let nan: f64 = Float::nan(); + let inf: f64 = INFINITY; + let neg_inf: f64 = NEG_INFINITY; + let nan: f64 = NAN; assert_eq!(inf, inf.exp2()); assert_eq!(0.0, neg_inf.exp2()); assert!(nan.exp2().is_nan()); @@ -1851,9 +1430,9 @@ mod tests { #[test] fn test_ln() { - let nan: f64 = Float::nan(); - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); + let nan: f64 = NAN; + let inf: f64 = INFINITY; + let neg_inf: f64 = NEG_INFINITY; assert_approx_eq!(1.0f64.exp().ln(), 1.0); assert!(nan.ln().is_nan()); assert_eq!(inf.ln(), inf); @@ -1866,12 +1445,12 @@ mod tests { #[test] fn test_log() { - let nan: f64 = Float::nan(); - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); + let nan: f64 = NAN; + let inf: f64 = INFINITY; + let neg_inf: f64 = NEG_INFINITY; assert_eq!(10.0f64.log(10.0), 1.0); assert_approx_eq!(2.3f64.log(3.5), 0.664858); - assert_eq!(1.0f64.exp().log(1.0.exp()), 1.0); + assert_eq!(1.0f64.exp().log(1.0f64.exp()), 1.0); assert!(1.0f64.log(1.0).is_nan()); assert!(1.0f64.log(-13.9).is_nan()); assert!(nan.log(2.3).is_nan()); @@ -1884,9 +1463,9 @@ mod tests { #[test] fn test_log2() { - let nan: f64 = Float::nan(); - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); + let nan: f64 = NAN; + let inf: f64 = INFINITY; + let neg_inf: f64 = NEG_INFINITY; assert_approx_eq!(10.0f64.log2(), 3.321928); assert_approx_eq!(2.3f64.log2(), 1.201634); assert_approx_eq!(1.0f64.exp().log2(), 1.442695); @@ -1900,9 +1479,9 @@ mod tests { #[test] fn test_log10() { - let nan: f64 = Float::nan(); - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); + let nan: f64 = NAN; + let inf: f64 = INFINITY; + let neg_inf: f64 = NEG_INFINITY; assert_eq!(10.0f64.log10(), 1.0); assert_approx_eq!(2.3f64.log10(), 0.361728); assert_approx_eq!(1.0f64.exp().log10(), 0.434294); @@ -1918,9 +1497,9 @@ mod tests { #[test] fn test_to_degrees() { let pi: f64 = consts::PI; - let nan: f64 = Float::nan(); - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); + let nan: f64 = NAN; + let inf: f64 = INFINITY; + let neg_inf: f64 = NEG_INFINITY; assert_eq!(0.0f64.to_degrees(), 0.0); assert_approx_eq!((-5.8f64).to_degrees(), -332.315521); assert_eq!(pi.to_degrees(), 180.0); @@ -1932,9 +1511,9 @@ mod tests { #[test] fn test_to_radians() { let pi: f64 = consts::PI; - let nan: f64 = Float::nan(); - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); + let nan: f64 = NAN; + let inf: f64 = INFINITY; + let neg_inf: f64 = NEG_INFINITY; assert_eq!(0.0f64.to_radians(), 0.0); assert_approx_eq!(154.6f64.to_radians(), 2.698279); assert_approx_eq!((-332.31f64).to_radians(), -5.799903); @@ -1948,40 +1527,40 @@ mod tests { fn test_ldexp() { // We have to use from_str until base-2 exponents // are supported in floating-point literals - let f1: f64 = FromStrRadix::from_str_radix("1p-123", 16).unwrap(); - let f2: f64 = FromStrRadix::from_str_radix("1p-111", 16).unwrap(); - let f3: f64 = FromStrRadix::from_str_radix("1.Cp-12", 16).unwrap(); - assert_eq!(1f64.ldexp(-123), f1); - assert_eq!(1f64.ldexp(-111), f2); - assert_eq!(Float::ldexp(1.75f64, -12), f3); + let f1: f64 = f64::from_str_radix("1p-123", 16).unwrap(); + let f2: f64 = f64::from_str_radix("1p-111", 16).unwrap(); + let f3: f64 = f64::from_str_radix("1.Cp-12", 16).unwrap(); + assert_eq!(f64::ldexp(1f64, -123), f1); + assert_eq!(f64::ldexp(1f64, -111), f2); + assert_eq!(f64::ldexp(1.75f64, -12), f3); - assert_eq!(Float::ldexp(0f64, -123), 0f64); - assert_eq!(Float::ldexp(-0f64, -123), -0f64); + assert_eq!(f64::ldexp(0f64, -123), 0f64); + assert_eq!(f64::ldexp(-0f64, -123), -0f64); - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); - let nan: f64 = Float::nan(); - assert_eq!(Float::ldexp(inf, -123), inf); - assert_eq!(Float::ldexp(neg_inf, -123), neg_inf); - assert!(Float::ldexp(nan, -123).is_nan()); + let inf: f64 = INFINITY; + let neg_inf: f64 = NEG_INFINITY; + let nan: f64 = NAN; + assert_eq!(f64::ldexp(inf, -123), inf); + assert_eq!(f64::ldexp(neg_inf, -123), neg_inf); + assert!(f64::ldexp(nan, -123).is_nan()); } #[test] fn test_frexp() { // We have to use from_str until base-2 exponents // are supported in floating-point literals - let f1: f64 = FromStrRadix::from_str_radix("1p-123", 16).unwrap(); - let f2: f64 = FromStrRadix::from_str_radix("1p-111", 16).unwrap(); - let f3: f64 = FromStrRadix::from_str_radix("1.Cp-123", 16).unwrap(); + let f1: f64 = f64::from_str_radix("1p-123", 16).unwrap(); + let f2: f64 = f64::from_str_radix("1p-111", 16).unwrap(); + let f3: f64 = f64::from_str_radix("1.Cp-123", 16).unwrap(); let (x1, exp1) = f1.frexp(); let (x2, exp2) = f2.frexp(); let (x3, exp3) = f3.frexp(); assert_eq!((x1, exp1), (0.5f64, -122)); assert_eq!((x2, exp2), (0.5f64, -110)); assert_eq!((x3, exp3), (0.875f64, -122)); - assert_eq!(Float::ldexp(x1, exp1), f1); - assert_eq!(Float::ldexp(x2, exp2), f2); - assert_eq!(Float::ldexp(x3, exp3), f3); + assert_eq!(f64::ldexp(x1, exp1), f1); + assert_eq!(f64::ldexp(x2, exp2), f2); + assert_eq!(f64::ldexp(x3, exp3), f3); assert_eq!(0f64.frexp(), (0f64, 0)); assert_eq!((-0f64).frexp(), (-0f64, 0)); @@ -1989,9 +1568,9 @@ mod tests { #[test] #[cfg_attr(windows, ignore)] // FIXME #8755 fn test_frexp_nowin() { - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); - let nan: f64 = Float::nan(); + let inf: f64 = INFINITY; + let neg_inf: f64 = NEG_INFINITY; + let nan: f64 = NAN; assert_eq!(match inf.frexp() { (x, _) => x }, inf); assert_eq!(match neg_inf.frexp() { (x, _) => x }, neg_inf); assert!(match nan.frexp() { (x, _) => x.is_nan() }) @@ -2020,9 +1599,9 @@ mod tests { assert_eq!(0.0f64.asinh(), 0.0f64); assert_eq!((-0.0f64).asinh(), -0.0f64); - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); - let nan: f64 = Float::nan(); + let inf: f64 = INFINITY; + let neg_inf: f64 = NEG_INFINITY; + let nan: f64 = NAN; assert_eq!(inf.asinh(), inf); assert_eq!(neg_inf.asinh(), neg_inf); assert!(nan.asinh().is_nan()); @@ -2035,9 +1614,9 @@ mod tests { assert_eq!(1.0f64.acosh(), 0.0f64); assert!(0.999f64.acosh().is_nan()); - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); - let nan: f64 = Float::nan(); + let inf: f64 = INFINITY; + let neg_inf: f64 = NEG_INFINITY; + let nan: f64 = NAN; assert_eq!(inf.acosh(), inf); assert!(neg_inf.acosh().is_nan()); assert!(nan.acosh().is_nan()); @@ -2050,9 +1629,9 @@ mod tests { assert_eq!(0.0f64.atanh(), 0.0f64); assert_eq!((-0.0f64).atanh(), -0.0f64); - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); - let nan: f64 = Float::nan(); + let inf: f64 = INFINITY; + let neg_inf: f64 = NEG_INFINITY; + let nan: f64 = NAN; assert_eq!(1.0f64.atanh(), inf); assert_eq!((-1.0f64).atanh(), neg_inf); assert!(2f64.atanh().atanh().is_nan()); @@ -2076,9 +1655,9 @@ mod tests { let frac_pi_8: f64 = consts::FRAC_PI_8; let frac_1_pi: f64 = consts::FRAC_1_PI; let frac_2_pi: f64 = consts::FRAC_2_PI; - let frac_2_sqrtpi: f64 = consts::FRAC_2_SQRTPI; - let sqrt2: f64 = consts::SQRT2; - let frac_1_sqrt2: f64 = consts::FRAC_1_SQRT2; + let frac_2_sqrtpi: f64 = consts::FRAC_2_SQRT_PI; + let sqrt2: f64 = consts::SQRT_2; + let frac_1_sqrt2: f64 = consts::FRAC_1_SQRT_2; let e: f64 = consts::E; let log2_e: f64 = consts::LOG2_E; let log10_e: f64 = consts::LOG10_E; diff --git a/src/libstd/num/mod.rs b/src/libstd/num/mod.rs index e0b9c720dbb..cd26be013c4 100644 --- a/src/libstd/num/mod.rs +++ b/src/libstd/num/mod.rs @@ -15,1117 +15,27 @@ #![stable(feature = "rust1", since = "1.0.0")] #![allow(missing_docs)] -#![allow(deprecated)] -#[cfg(test)] use fmt::Debug; -use ops::{Add, Sub, Mul, Div, Rem, Neg}; +use fmt; +use core::num; -use marker::Copy; -use clone::Clone; -use cmp::{PartialOrd, PartialEq}; - -pub use core::num::{Int, SignedInt, Zero, One}; -pub use core::num::{cast, FromPrimitive, NumCast, ToPrimitive}; -pub use core::num::{from_int, from_i8, from_i16, from_i32, from_i64}; -pub use core::num::{from_uint, from_u8, from_u16, from_u32, from_u64}; -pub use core::num::{from_f32, from_f64}; -pub use core::num::{FromStrRadix, from_str_radix}; -pub use core::num::{FpCategory, ParseIntError, ParseFloatError}; +pub use core::num::{Zero, One}; +pub use core::num::{FpCategory, ParseIntError}; pub use core::num::{wrapping, Wrapping}; -use option::Option; - -#[unstable(feature = "std_misc", reason = "likely to be removed")] -pub mod strconv; - -/// Mathematical operations on primitive floating point numbers. -#[stable(feature = "rust1", since = "1.0.0")] -#[deprecated(since = "1.0.0", - reason = "replaced by inherent methods; use rust-lang/num for generics")] -pub trait Float - : Copy + Clone - + NumCast - + PartialOrd - + PartialEq - + Neg<Output=Self> - + Add<Output=Self> - + Sub<Output=Self> - + Mul<Output=Self> - + Div<Output=Self> - + Rem<Output=Self> -{ - // inlined methods from `num::Float` - /// Returns the `NaN` value. - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// - /// let nan: f32 = Float::nan(); - /// - /// assert!(nan.is_nan()); - /// ``` - #[unstable(feature = "std_misc", - reason = "unsure about its place in the world")] - fn nan() -> Self; - /// Returns the infinite value. - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// use std::f32; - /// - /// let infinity: f32 = Float::infinity(); - /// - /// assert!(infinity.is_infinite()); - /// assert!(!infinity.is_finite()); - /// assert!(infinity > f32::MAX); - /// ``` - #[unstable(feature = "std_misc", - reason = "unsure about its place in the world")] - fn infinity() -> Self; - /// Returns the negative infinite value. - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// use std::f32; - /// - /// let neg_infinity: f32 = Float::neg_infinity(); - /// - /// assert!(neg_infinity.is_infinite()); - /// assert!(!neg_infinity.is_finite()); - /// assert!(neg_infinity < f32::MIN); - /// ``` - #[unstable(feature = "std_misc", - reason = "unsure about its place in the world")] - fn neg_infinity() -> Self; - /// Returns `0.0`. - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// - /// let inf: f32 = Float::infinity(); - /// let zero: f32 = Float::zero(); - /// let neg_zero: f32 = Float::neg_zero(); - /// - /// assert_eq!(zero, neg_zero); - /// assert_eq!(7.0f32/inf, zero); - /// assert_eq!(zero * 10.0, zero); - /// ``` - #[unstable(feature = "std_misc", - reason = "unsure about its place in the world")] - fn zero() -> Self; - /// Returns `-0.0`. - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// - /// let inf: f32 = Float::infinity(); - /// let zero: f32 = Float::zero(); - /// let neg_zero: f32 = Float::neg_zero(); - /// - /// assert_eq!(zero, neg_zero); - /// assert_eq!(7.0f32/inf, zero); - /// assert_eq!(zero * 10.0, zero); - /// ``` - #[unstable(feature = "std_misc", - reason = "unsure about its place in the world")] - fn neg_zero() -> Self; - /// Returns `1.0`. - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// - /// let one: f32 = Float::one(); - /// - /// assert_eq!(one, 1.0f32); - /// ``` - #[unstable(feature = "std_misc", - reason = "unsure about its place in the world")] - fn one() -> Self; - - // FIXME (#5527): These should be associated constants - - /// Deprecated: use `std::f32::MANTISSA_DIGITS` or `std::f64::MANTISSA_DIGITS` - /// instead. - #[unstable(feature = "std_misc")] - #[deprecated(since = "1.0.0", - reason = "use `std::f32::MANTISSA_DIGITS` or \ - `std::f64::MANTISSA_DIGITS` as appropriate")] - fn mantissa_digits(unused_self: Option<Self>) -> usize; - /// Deprecated: use `std::f32::DIGITS` or `std::f64::DIGITS` instead. - #[unstable(feature = "std_misc")] - #[deprecated(since = "1.0.0", - reason = "use `std::f32::DIGITS` or `std::f64::DIGITS` as appropriate")] - fn digits(unused_self: Option<Self>) -> usize; - /// Deprecated: use `std::f32::EPSILON` or `std::f64::EPSILON` instead. - #[unstable(feature = "std_misc")] - #[deprecated(since = "1.0.0", - reason = "use `std::f32::EPSILON` or `std::f64::EPSILON` as appropriate")] - fn epsilon() -> Self; - /// Deprecated: use `std::f32::MIN_EXP` or `std::f64::MIN_EXP` instead. - #[unstable(feature = "std_misc")] - #[deprecated(since = "1.0.0", - reason = "use `std::f32::MIN_EXP` or `std::f64::MIN_EXP` as appropriate")] - fn min_exp(unused_self: Option<Self>) -> isize; - /// Deprecated: use `std::f32::MAX_EXP` or `std::f64::MAX_EXP` instead. - #[unstable(feature = "std_misc")] - #[deprecated(since = "1.0.0", - reason = "use `std::f32::MAX_EXP` or `std::f64::MAX_EXP` as appropriate")] - fn max_exp(unused_self: Option<Self>) -> isize; - /// Deprecated: use `std::f32::MIN_10_EXP` or `std::f64::MIN_10_EXP` instead. - #[unstable(feature = "std_misc")] - #[deprecated(since = "1.0.0", - reason = "use `std::f32::MIN_10_EXP` or `std::f64::MIN_10_EXP` as appropriate")] - fn min_10_exp(unused_self: Option<Self>) -> isize; - /// Deprecated: use `std::f32::MAX_10_EXP` or `std::f64::MAX_10_EXP` instead. - #[unstable(feature = "std_misc")] - #[deprecated(since = "1.0.0", - reason = "use `std::f32::MAX_10_EXP` or `std::f64::MAX_10_EXP` as appropriate")] - fn max_10_exp(unused_self: Option<Self>) -> isize; - - /// Returns the smallest finite value that this type can represent. - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// use std::f64; - /// - /// let x: f64 = Float::min_value(); - /// - /// assert_eq!(x, f64::MIN); - /// ``` - #[unstable(feature = "std_misc", - reason = "unsure about its place in the world")] - fn min_value() -> Self; - /// Returns the smallest normalized positive number that this type can represent. - #[unstable(feature = "std_misc", - reason = "unsure about its place in the world")] - fn min_pos_value(unused_self: Option<Self>) -> Self; - /// Returns the largest finite value that this type can represent. - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// use std::f64; - /// - /// let x: f64 = Float::max_value(); - /// assert_eq!(x, f64::MAX); - /// ``` - #[unstable(feature = "std_misc", - reason = "unsure about its place in the world")] - fn max_value() -> Self; - /// Returns `true` if this value is `NaN` and false otherwise. - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// use std::f64; - /// - /// let nan = f64::NAN; - /// let f = 7.0; - /// - /// assert!(nan.is_nan()); - /// assert!(!f.is_nan()); - /// ``` - #[unstable(feature = "std_misc", reason = "position is undecided")] - fn is_nan(self) -> bool; - /// Returns `true` if this value is positive infinity or negative infinity and - /// false otherwise. - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// use std::f32; - /// - /// let f = 7.0f32; - /// let inf: f32 = Float::infinity(); - /// let neg_inf: f32 = Float::neg_infinity(); - /// let nan: f32 = f32::NAN; - /// - /// assert!(!f.is_infinite()); - /// assert!(!nan.is_infinite()); - /// - /// assert!(inf.is_infinite()); - /// assert!(neg_inf.is_infinite()); - /// ``` - #[unstable(feature = "std_misc", reason = "position is undecided")] - fn is_infinite(self) -> bool; - /// Returns `true` if this number is neither infinite nor `NaN`. - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// use std::f32; - /// - /// let f = 7.0f32; - /// let inf: f32 = Float::infinity(); - /// let neg_inf: f32 = Float::neg_infinity(); - /// let nan: f32 = f32::NAN; - /// - /// assert!(f.is_finite()); - /// - /// assert!(!nan.is_finite()); - /// assert!(!inf.is_finite()); - /// assert!(!neg_inf.is_finite()); - /// ``` - #[unstable(feature = "std_misc", reason = "position is undecided")] - fn is_finite(self) -> bool; - - /// Returns `true` if the number is neither zero, infinite, - /// [subnormal][subnormal], or `NaN`. - /// - /// ``` - /// use std::num::Float; - /// use std::f32; - /// - /// let min = f32::MIN_POSITIVE; // 1.17549435e-38f32 - /// let max = f32::MAX; - /// let lower_than_min = 1.0e-40_f32; - /// let zero = 0.0f32; - /// - /// assert!(min.is_normal()); - /// assert!(max.is_normal()); - /// - /// assert!(!zero.is_normal()); - /// assert!(!f32::NAN.is_normal()); - /// assert!(!f32::INFINITY.is_normal()); - /// // Values between `0` and `min` are Subnormal. - /// assert!(!lower_than_min.is_normal()); - /// ``` - /// [subnormal]: http://en.wikipedia.org/wiki/Denormal_number - #[unstable(feature = "std_misc", reason = "position is undecided")] - fn is_normal(self) -> bool; - - /// Returns the floating point category of the number. If only one property - /// is going to be tested, it is generally faster to use the specific - /// predicate instead. - /// - /// ``` - /// use std::num::{Float, FpCategory}; - /// use std::f32; - /// - /// let num = 12.4f32; - /// let inf = f32::INFINITY; - /// - /// assert_eq!(num.classify(), FpCategory::Normal); - /// assert_eq!(inf.classify(), FpCategory::Infinite); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn classify(self) -> FpCategory; - - /// Returns the mantissa, base 2 exponent, and sign as integers, respectively. - /// The original number can be recovered by `sign * mantissa * 2 ^ exponent`. - /// The floating point encoding is documented in the [Reference][floating-point]. - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// - /// let num = 2.0f32; - /// - /// // (8388608, -22, 1) - /// let (mantissa, exponent, sign) = num.integer_decode(); - /// let sign_f = sign as f32; - /// let mantissa_f = mantissa as f32; - /// let exponent_f = num.powf(exponent as f32); - /// - /// // 1 * 8388608 * 2^(-22) == 2 - /// let abs_difference = (sign_f * mantissa_f * exponent_f - num).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - /// [floating-point]: ../../../../../reference.html#machine-types - #[unstable(feature = "std_misc", reason = "signature is undecided")] - fn integer_decode(self) -> (u64, i16, i8); - - /// Returns the largest integer less than or equal to a number. - /// - /// ``` - /// use std::num::Float; - /// - /// let f = 3.99; - /// let g = 3.0; - /// - /// assert_eq!(f.floor(), 3.0); - /// assert_eq!(g.floor(), 3.0); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn floor(self) -> Self; - /// Returns the smallest integer greater than or equal to a number. - /// - /// ``` - /// use std::num::Float; - /// - /// let f = 3.01; - /// let g = 4.0; - /// - /// assert_eq!(f.ceil(), 4.0); - /// assert_eq!(g.ceil(), 4.0); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn ceil(self) -> Self; - /// Returns the nearest integer to a number. Round half-way cases away from - /// `0.0`. - /// - /// ``` - /// use std::num::Float; - /// - /// let f = 3.3; - /// let g = -3.3; - /// - /// assert_eq!(f.round(), 3.0); - /// assert_eq!(g.round(), -3.0); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn round(self) -> Self; - /// Returns the integer part of a number. - /// - /// ``` - /// use std::num::Float; - /// - /// let f = 3.3; - /// let g = -3.7; - /// - /// assert_eq!(f.trunc(), 3.0); - /// assert_eq!(g.trunc(), -3.0); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn trunc(self) -> Self; - /// Returns the fractional part of a number. - /// - /// ``` - /// use std::num::Float; - /// - /// let x = 3.5; - /// let y = -3.5; - /// let abs_difference_x = (x.fract() - 0.5).abs(); - /// let abs_difference_y = (y.fract() - (-0.5)).abs(); - /// - /// assert!(abs_difference_x < 1e-10); - /// assert!(abs_difference_y < 1e-10); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn fract(self) -> Self; - /// Computes the absolute value of `self`. Returns `Float::nan()` if the - /// number is `Float::nan()`. - /// - /// ``` - /// use std::num::Float; - /// use std::f64; - /// - /// let x = 3.5; - /// let y = -3.5; - /// - /// let abs_difference_x = (x.abs() - x).abs(); - /// let abs_difference_y = (y.abs() - (-y)).abs(); - /// - /// assert!(abs_difference_x < 1e-10); - /// assert!(abs_difference_y < 1e-10); - /// - /// assert!(f64::NAN.abs().is_nan()); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn abs(self) -> Self; - /// Returns a number that represents the sign of `self`. - /// - /// - `1.0` if the number is positive, `+0.0` or `Float::infinity()` - /// - `-1.0` if the number is negative, `-0.0` or `Float::neg_infinity()` - /// - `Float::nan()` if the number is `Float::nan()` - /// - /// ``` - /// use std::num::Float; - /// use std::f64; - /// - /// let f = 3.5; - /// - /// assert_eq!(f.signum(), 1.0); - /// assert_eq!(f64::NEG_INFINITY.signum(), -1.0); - /// - /// assert!(f64::NAN.signum().is_nan()); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn signum(self) -> Self; - /// Returns `true` if `self` is positive, including `+0.0` and - /// `Float::infinity()`. - /// - /// ``` - /// use std::num::Float; - /// use std::f64; - /// - /// let nan: f64 = f64::NAN; - /// - /// let f = 7.0; - /// let g = -7.0; - /// - /// assert!(f.is_positive()); - /// assert!(!g.is_positive()); - /// // Requires both tests to determine if is `NaN` - /// assert!(!nan.is_positive() && !nan.is_negative()); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn is_positive(self) -> bool; - /// Returns `true` if `self` is negative, including `-0.0` and - /// `Float::neg_infinity()`. - /// - /// ``` - /// use std::num::Float; - /// use std::f64; - /// - /// let nan = f64::NAN; - /// - /// let f = 7.0; - /// let g = -7.0; - /// - /// assert!(!f.is_negative()); - /// assert!(g.is_negative()); - /// // Requires both tests to determine if is `NaN`. - /// assert!(!nan.is_positive() && !nan.is_negative()); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn is_negative(self) -> bool; - - /// Fused multiply-add. Computes `(self * a) + b` with only one rounding - /// error. This produces a more accurate result with better performance than - /// a separate multiplication operation followed by an add. - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// - /// let m = 10.0; - /// let x = 4.0; - /// let b = 60.0; - /// - /// // 100.0 - /// let abs_difference = (m.mul_add(x, b) - (m*x + b)).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[unstable(feature = "std_misc", - reason = "unsure about its place in the world")] - fn mul_add(self, a: Self, b: Self) -> Self; - /// Takes the reciprocal (inverse) of a number, `1/x`. - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// - /// let x = 2.0; - /// let abs_difference = (x.recip() - (1.0/x)).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[unstable(feature = "std_misc", - reason = "unsure about its place in the world")] - fn recip(self) -> Self; - - /// Raises a number to an integer power. - /// - /// Using this function is generally faster than using `powf` - /// - /// ``` - /// use std::num::Float; - /// - /// let x = 2.0; - /// let abs_difference = (x.powi(2) - x*x).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn powi(self, n: i32) -> Self; - /// Raises a number to a floating point power. - /// - /// ``` - /// use std::num::Float; - /// - /// let x = 2.0; - /// let abs_difference = (x.powf(2.0) - x*x).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn powf(self, n: Self) -> Self; - /// Takes the square root of a number. - /// - /// Returns NaN if `self` is a negative number. - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// - /// let positive = 4.0; - /// let negative = -4.0; - /// - /// let abs_difference = (positive.sqrt() - 2.0).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// assert!(negative.sqrt().is_nan()); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn sqrt(self) -> Self; - - /// Takes the reciprocal (inverse) square root of a number, `1/sqrt(x)`. - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// - /// let f = 4.0; - /// - /// let abs_difference = (f.rsqrt() - 0.5).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[unstable(feature = "std_misc", - reason = "unsure about its place in the world")] - fn rsqrt(self) -> Self; - - /// Returns `e^(self)`, (the exponential function). - /// - /// ``` - /// use std::num::Float; - /// - /// let one = 1.0; - /// // e^1 - /// let e = one.exp(); - /// - /// // ln(e) - 1 == 0 - /// let abs_difference = (e.ln() - 1.0).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn exp(self) -> Self; - /// Returns `2^(self)`. - /// - /// ``` - /// use std::num::Float; - /// - /// let f = 2.0; - /// - /// // 2^2 - 4 == 0 - /// let abs_difference = (f.exp2() - 4.0).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn exp2(self) -> Self; - /// Returns the natural logarithm of the number. - /// - /// ``` - /// use std::num::Float; - /// - /// let one = 1.0; - /// // e^1 - /// let e = one.exp(); - /// - /// // ln(e) - 1 == 0 - /// let abs_difference = (e.ln() - 1.0).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn ln(self) -> Self; - /// Returns the logarithm of the number with respect to an arbitrary base. - /// - /// ``` - /// use std::num::Float; - /// - /// let ten = 10.0; - /// let two = 2.0; - /// - /// // log10(10) - 1 == 0 - /// let abs_difference_10 = (ten.log(10.0) - 1.0).abs(); - /// - /// // log2(2) - 1 == 0 - /// let abs_difference_2 = (two.log(2.0) - 1.0).abs(); - /// - /// assert!(abs_difference_10 < 1e-10); - /// assert!(abs_difference_2 < 1e-10); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn log(self, base: Self) -> Self; - /// Returns the base 2 logarithm of the number. - /// - /// ``` - /// use std::num::Float; - /// - /// let two = 2.0; - /// - /// // log2(2) - 1 == 0 - /// let abs_difference = (two.log2() - 1.0).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn log2(self) -> Self; - /// Returns the base 10 logarithm of the number. - /// - /// ``` - /// use std::num::Float; - /// - /// let ten = 10.0; - /// - /// // log10(10) - 1 == 0 - /// let abs_difference = (ten.log10() - 1.0).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn log10(self) -> Self; - - /// Converts radians to degrees. - /// - /// ``` - /// use std::num::Float; - /// use std::f64::consts; - /// - /// let angle = consts::PI; - /// - /// let abs_difference = (angle.to_degrees() - 180.0).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[unstable(feature = "std_misc", reason = "desirability is unclear")] - fn to_degrees(self) -> Self; - /// Converts degrees to radians. - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// use std::f64::consts; - /// - /// let angle = 180.0; - /// - /// let abs_difference = (angle.to_radians() - consts::PI).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[unstable(feature = "std_misc", reason = "desirability is unclear")] - fn to_radians(self) -> Self; - /// Constructs a floating point number of `x*2^exp`. - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// - /// // 3*2^2 - 12 == 0 - /// let abs_difference = (Float::ldexp(3.0, 2) - 12.0).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[unstable(feature = "std_misc", - reason = "pending integer conventions")] - fn ldexp(self, exp: isize) -> Self; - /// Breaks the number into a normalized fraction and a base-2 exponent, - /// satisfying: - /// - /// * `self = x * 2^exp` - /// * `0.5 <= abs(x) < 1.0` - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// - /// let x = 4.0; - /// - /// // (1/2)*2^3 -> 1 * 8/2 -> 4.0 - /// let f = x.frexp(); - /// let abs_difference_0 = (f.0 - 0.5).abs(); - /// let abs_difference_1 = (f.1 as f64 - 3.0).abs(); - /// - /// assert!(abs_difference_0 < 1e-10); - /// assert!(abs_difference_1 < 1e-10); - /// ``` - #[unstable(feature = "std_misc", - reason = "pending integer conventions")] - fn frexp(self) -> (Self, isize); - /// Returns the next representable floating-point value in the direction of - /// `other`. - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// - /// let x = 1.0f32; - /// - /// let abs_diff = (x.next_after(2.0) - 1.00000011920928955078125_f32).abs(); - /// - /// assert!(abs_diff < 1e-10); - /// ``` - #[unstable(feature = "std_misc", - reason = "unsure about its place in the world")] - fn next_after(self, other: Self) -> Self; - - /// Returns the maximum of the two numbers. - /// - /// ``` - /// use std::num::Float; - /// - /// let x = 1.0; - /// let y = 2.0; - /// - /// assert_eq!(x.max(y), y); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn max(self, other: Self) -> Self; - /// Returns the minimum of the two numbers. - /// - /// ``` - /// use std::num::Float; - /// - /// let x = 1.0; - /// let y = 2.0; - /// - /// assert_eq!(x.min(y), x); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn min(self, other: Self) -> Self; - - /// The positive difference of two numbers. - /// - /// * If `self <= other`: `0:0` - /// * Else: `self - other` - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// - /// let x = 3.0; - /// let y = -3.0; - /// - /// let abs_difference_x = (x.abs_sub(1.0) - 2.0).abs(); - /// let abs_difference_y = (y.abs_sub(1.0) - 0.0).abs(); - /// - /// assert!(abs_difference_x < 1e-10); - /// assert!(abs_difference_y < 1e-10); - /// ``` - #[unstable(feature = "std_misc", reason = "may be renamed")] - fn abs_sub(self, other: Self) -> Self; - /// Takes the cubic root of a number. - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// - /// let x = 8.0; - /// - /// // x^(1/3) - 2 == 0 - /// let abs_difference = (x.cbrt() - 2.0).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[unstable(feature = "std_misc", reason = "may be renamed")] - fn cbrt(self) -> Self; - /// Calculates the length of the hypotenuse of a right-angle triangle given - /// legs of length `x` and `y`. - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// - /// let x = 2.0; - /// let y = 3.0; - /// - /// // sqrt(x^2 + y^2) - /// let abs_difference = (x.hypot(y) - (x.powi(2) + y.powi(2)).sqrt()).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[unstable(feature = "std_misc", - reason = "unsure about its place in the world")] - fn hypot(self, other: Self) -> Self; - - /// Computes the sine of a number (in radians). - /// - /// ``` - /// use std::num::Float; - /// use std::f64; - /// - /// let x = f64::consts::PI/2.0; - /// - /// let abs_difference = (x.sin() - 1.0).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn sin(self) -> Self; - /// Computes the cosine of a number (in radians). - /// - /// ``` - /// use std::num::Float; - /// use std::f64; - /// - /// let x = 2.0*f64::consts::PI; - /// - /// let abs_difference = (x.cos() - 1.0).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn cos(self) -> Self; - /// Computes the tangent of a number (in radians). - /// - /// ``` - /// use std::num::Float; - /// use std::f64; - /// - /// let x = f64::consts::PI/4.0; - /// let abs_difference = (x.tan() - 1.0).abs(); - /// - /// assert!(abs_difference < 1e-14); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn tan(self) -> Self; - /// Computes the arcsine of a number. Return value is in radians in - /// the range [-pi/2, pi/2] or NaN if the number is outside the range - /// [-1, 1]. - /// - /// ``` - /// use std::num::Float; - /// use std::f64; - /// - /// let f = f64::consts::PI / 2.0; - /// - /// // asin(sin(pi/2)) - /// let abs_difference = (f.sin().asin() - f64::consts::PI / 2.0).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn asin(self) -> Self; - /// Computes the arccosine of a number. Return value is in radians in - /// the range [0, pi] or NaN if the number is outside the range - /// [-1, 1]. - /// - /// ``` - /// use std::num::Float; - /// use std::f64; - /// - /// let f = f64::consts::PI / 4.0; - /// - /// // acos(cos(pi/4)) - /// let abs_difference = (f.cos().acos() - f64::consts::PI / 4.0).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn acos(self) -> Self; - /// Computes the arctangent of a number. Return value is in radians in the - /// range [-pi/2, pi/2]; - /// - /// ``` - /// use std::num::Float; - /// - /// let f = 1.0; - /// - /// // atan(tan(1)) - /// let abs_difference = (f.tan().atan() - 1.0).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn atan(self) -> Self; - /// Computes the four quadrant arctangent of `self` (`y`) and `other` (`x`). - /// - /// * `x = 0`, `y = 0`: `0` - /// * `x >= 0`: `arctan(y/x)` -> `[-pi/2, pi/2]` - /// * `y >= 0`: `arctan(y/x) + pi` -> `(pi/2, pi]` - /// * `y < 0`: `arctan(y/x) - pi` -> `(-pi, -pi/2)` - /// - /// ``` - /// use std::num::Float; - /// use std::f64; - /// - /// let pi = f64::consts::PI; - /// // All angles from horizontal right (+x) - /// // 45 deg counter-clockwise - /// let x1 = 3.0; - /// let y1 = -3.0; - /// - /// // 135 deg clockwise - /// let x2 = -3.0; - /// let y2 = 3.0; - /// - /// let abs_difference_1 = (y1.atan2(x1) - (-pi/4.0)).abs(); - /// let abs_difference_2 = (y2.atan2(x2) - 3.0*pi/4.0).abs(); - /// - /// assert!(abs_difference_1 < 1e-10); - /// assert!(abs_difference_2 < 1e-10); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn atan2(self, other: Self) -> Self; - /// Simultaneously computes the sine and cosine of the number, `x`. Returns - /// `(sin(x), cos(x))`. - /// - /// ``` - /// use std::num::Float; - /// use std::f64; - /// - /// let x = f64::consts::PI/4.0; - /// let f = x.sin_cos(); - /// - /// let abs_difference_0 = (f.0 - x.sin()).abs(); - /// let abs_difference_1 = (f.1 - x.cos()).abs(); - /// - /// assert!(abs_difference_0 < 1e-10); - /// assert!(abs_difference_0 < 1e-10); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn sin_cos(self) -> (Self, Self); - - /// Returns `e^(self) - 1` in a way that is accurate even if the - /// number is close to zero. - /// - /// ``` - /// # #![feature(std_misc)] - /// use std::num::Float; - /// - /// let x = 7.0; - /// - /// // e^(ln(7)) - 1 - /// let abs_difference = (x.ln().exp_m1() - 6.0).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[unstable(feature = "std_misc", reason = "may be renamed")] - fn exp_m1(self) -> Self; - /// Returns `ln(1+n)` (natural logarithm) more accurately than if - /// the operations were performed separately. - /// - /// ``` - /// use std::num::Float; - /// use std::f64; - /// - /// let x = f64::consts::E - 1.0; - /// - /// // ln(1 + (e - 1)) == ln(e) == 1 - /// let abs_difference = (x.ln_1p() - 1.0).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[unstable(feature = "std_misc", reason = "may be renamed")] - fn ln_1p(self) -> Self; - - /// Hyperbolic sine function. - /// - /// ``` - /// use std::num::Float; - /// use std::f64; - /// - /// let e = f64::consts::E; - /// let x = 1.0; - /// - /// let f = x.sinh(); - /// // Solving sinh() at 1 gives `(e^2-1)/(2e)` - /// let g = (e*e - 1.0)/(2.0*e); - /// let abs_difference = (f - g).abs(); - /// - /// assert!(abs_difference < 1e-10); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn sinh(self) -> Self; - /// Hyperbolic cosine function. - /// - /// ``` - /// use std::num::Float; - /// use std::f64; - /// - /// let e = f64::consts::E; - /// let x = 1.0; - /// let f = x.cosh(); - /// // Solving cosh() at 1 gives this result - /// let g = (e*e + 1.0)/(2.0*e); - /// let abs_difference = (f - g).abs(); - /// - /// // Same result - /// assert!(abs_difference < 1.0e-10); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn cosh(self) -> Self; - /// Hyperbolic tangent function. - /// - /// ``` - /// use std::num::Float; - /// use std::f64; - /// - /// let e = f64::consts::E; - /// let x = 1.0; - /// - /// let f = x.tanh(); - /// // Solving tanh() at 1 gives `(1 - e^(-2))/(1 + e^(-2))` - /// let g = (1.0 - e.powi(-2))/(1.0 + e.powi(-2)); - /// let abs_difference = (f - g).abs(); - /// - /// assert!(abs_difference < 1.0e-10); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn tanh(self) -> Self; - /// Inverse hyperbolic sine function. - /// - /// ``` - /// use std::num::Float; - /// - /// let x = 1.0; - /// let f = x.sinh().asinh(); - /// - /// let abs_difference = (f - x).abs(); - /// - /// assert!(abs_difference < 1.0e-10); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn asinh(self) -> Self; - /// Inverse hyperbolic cosine function. - /// - /// ``` - /// use std::num::Float; - /// - /// let x = 1.0; - /// let f = x.cosh().acosh(); - /// - /// let abs_difference = (f - x).abs(); - /// - /// assert!(abs_difference < 1.0e-10); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn acosh(self) -> Self; - /// Inverse hyperbolic tangent function. - /// - /// ``` - /// use std::num::Float; - /// use std::f64; - /// - /// let e = f64::consts::E; - /// let f = e.tanh().atanh(); - /// - /// let abs_difference = (f - e).abs(); - /// - /// assert!(abs_difference < 1.0e-10); - /// ``` - #[stable(feature = "rust1", since = "1.0.0")] - fn atanh(self) -> Self; -} +#[cfg(test)] use ops::{Add, Sub, Mul, Div, Rem}; +#[cfg(test)] use cmp::PartialEq; +#[cfg(test)] use marker::Copy; /// Helper function for testing numeric operations #[cfg(test)] pub fn test_num<T>(ten: T, two: T) where - T: PartialEq + NumCast + T: PartialEq + Add<Output=T> + Sub<Output=T> + Mul<Output=T> + Div<Output=T> - + Rem<Output=T> + Debug + + Rem<Output=T> + fmt::Debug + Copy { - assert_eq!(ten.add(two), cast(12).unwrap()); - assert_eq!(ten.sub(two), cast(8).unwrap()); - assert_eq!(ten.mul(two), cast(20).unwrap()); - assert_eq!(ten.div(two), cast(5).unwrap()); - assert_eq!(ten.rem(two), cast(0).unwrap()); - assert_eq!(ten.add(two), ten + two); assert_eq!(ten.sub(two), ten - two); assert_eq!(ten.mul(two), ten * two); @@ -1133,6 +43,31 @@ pub fn test_num<T>(ten: T, two: T) where assert_eq!(ten.rem(two), ten % two); } +/// An error which can be returned when parsing a float. +#[derive(Debug, Clone, PartialEq)] +#[stable(feature = "rust1", since = "1.0.0")] +pub struct ParseFloatError { inner: num::ParseFloatError } + +impl ::sys_common::FromInner<num::ParseFloatError> for ParseFloatError { + fn from_inner(inner: num::ParseFloatError) -> ParseFloatError { + ParseFloatError { inner: inner } + } +} + +impl ParseFloatError { + #[unstable(feature = "core", reason = "available through Error trait")] + pub fn description(&self) -> &str { + self.inner.description() + } +} + +#[stable(feature = "rust1", since = "1.0.0")] +impl fmt::Display for ParseFloatError { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + self.description().fmt(f) + } +} + #[cfg(test)] mod tests { use core::prelude::*; @@ -1148,432 +83,7 @@ mod tests { use u64; use usize; use string::ToString; - - macro_rules! test_cast_20 { - ($_20:expr) => ({ - let _20 = $_20; - - assert_eq!(20usize, _20.to_uint().unwrap()); - assert_eq!(20u8, _20.to_u8().unwrap()); - assert_eq!(20u16, _20.to_u16().unwrap()); - assert_eq!(20u32, _20.to_u32().unwrap()); - assert_eq!(20u64, _20.to_u64().unwrap()); - assert_eq!(20, _20.to_int().unwrap()); - assert_eq!(20i8, _20.to_i8().unwrap()); - assert_eq!(20i16, _20.to_i16().unwrap()); - assert_eq!(20i32, _20.to_i32().unwrap()); - assert_eq!(20i64, _20.to_i64().unwrap()); - assert_eq!(20f32, _20.to_f32().unwrap()); - assert_eq!(20f64, _20.to_f64().unwrap()); - - assert_eq!(_20, NumCast::from(20usize).unwrap()); - assert_eq!(_20, NumCast::from(20u8).unwrap()); - assert_eq!(_20, NumCast::from(20u16).unwrap()); - assert_eq!(_20, NumCast::from(20u32).unwrap()); - assert_eq!(_20, NumCast::from(20u64).unwrap()); - assert_eq!(_20, NumCast::from(20).unwrap()); - assert_eq!(_20, NumCast::from(20i8).unwrap()); - assert_eq!(_20, NumCast::from(20i16).unwrap()); - assert_eq!(_20, NumCast::from(20i32).unwrap()); - assert_eq!(_20, NumCast::from(20i64).unwrap()); - assert_eq!(_20, NumCast::from(20f32).unwrap()); - assert_eq!(_20, NumCast::from(20f64).unwrap()); - - assert_eq!(_20, cast(20usize).unwrap()); - assert_eq!(_20, cast(20u8).unwrap()); - assert_eq!(_20, cast(20u16).unwrap()); - assert_eq!(_20, cast(20u32).unwrap()); - assert_eq!(_20, cast(20u64).unwrap()); - assert_eq!(_20, cast(20).unwrap()); - assert_eq!(_20, cast(20i8).unwrap()); - assert_eq!(_20, cast(20i16).unwrap()); - assert_eq!(_20, cast(20i32).unwrap()); - assert_eq!(_20, cast(20i64).unwrap()); - assert_eq!(_20, cast(20f32).unwrap()); - assert_eq!(_20, cast(20f64).unwrap()); - }) - } - - #[test] fn test_u8_cast() { test_cast_20!(20u8) } - #[test] fn test_u16_cast() { test_cast_20!(20u16) } - #[test] fn test_u32_cast() { test_cast_20!(20u32) } - #[test] fn test_u64_cast() { test_cast_20!(20u64) } - #[test] fn test_uint_cast() { test_cast_20!(20usize) } - #[test] fn test_i8_cast() { test_cast_20!(20i8) } - #[test] fn test_i16_cast() { test_cast_20!(20i16) } - #[test] fn test_i32_cast() { test_cast_20!(20i32) } - #[test] fn test_i64_cast() { test_cast_20!(20i64) } - #[test] fn test_int_cast() { test_cast_20!(20) } - #[test] fn test_f32_cast() { test_cast_20!(20f32) } - #[test] fn test_f64_cast() { test_cast_20!(20f64) } - - #[test] - fn test_cast_range_int_min() { - assert_eq!(isize::MIN.to_int(), Some(isize::MIN as isize)); - assert_eq!(isize::MIN.to_i8(), None); - assert_eq!(isize::MIN.to_i16(), None); - // isize::MIN.to_i32() is word-size specific - assert_eq!(isize::MIN.to_i64(), Some(isize::MIN as i64)); - assert_eq!(isize::MIN.to_uint(), None); - assert_eq!(isize::MIN.to_u8(), None); - assert_eq!(isize::MIN.to_u16(), None); - assert_eq!(isize::MIN.to_u32(), None); - assert_eq!(isize::MIN.to_u64(), None); - - #[cfg(target_pointer_width = "32")] - fn check_word_size() { - assert_eq!(isize::MIN.to_i32(), Some(isize::MIN as i32)); - } - - #[cfg(target_pointer_width = "64")] - fn check_word_size() { - assert_eq!(isize::MIN.to_i32(), None); - } - - check_word_size(); - } - - #[test] - fn test_cast_range_i8_min() { - assert_eq!(i8::MIN.to_int(), Some(i8::MIN as isize)); - assert_eq!(i8::MIN.to_i8(), Some(i8::MIN as i8)); - assert_eq!(i8::MIN.to_i16(), Some(i8::MIN as i16)); - assert_eq!(i8::MIN.to_i32(), Some(i8::MIN as i32)); - assert_eq!(i8::MIN.to_i64(), Some(i8::MIN as i64)); - assert_eq!(i8::MIN.to_uint(), None); - assert_eq!(i8::MIN.to_u8(), None); - assert_eq!(i8::MIN.to_u16(), None); - assert_eq!(i8::MIN.to_u32(), None); - assert_eq!(i8::MIN.to_u64(), None); - } - - #[test] - fn test_cast_range_i16_min() { - assert_eq!(i16::MIN.to_int(), Some(i16::MIN as isize)); - assert_eq!(i16::MIN.to_i8(), None); - assert_eq!(i16::MIN.to_i16(), Some(i16::MIN as i16)); - assert_eq!(i16::MIN.to_i32(), Some(i16::MIN as i32)); - assert_eq!(i16::MIN.to_i64(), Some(i16::MIN as i64)); - assert_eq!(i16::MIN.to_uint(), None); - assert_eq!(i16::MIN.to_u8(), None); - assert_eq!(i16::MIN.to_u16(), None); - assert_eq!(i16::MIN.to_u32(), None); - assert_eq!(i16::MIN.to_u64(), None); - } - - #[test] - fn test_cast_range_i32_min() { - assert_eq!(i32::MIN.to_int(), Some(i32::MIN as isize)); - assert_eq!(i32::MIN.to_i8(), None); - assert_eq!(i32::MIN.to_i16(), None); - assert_eq!(i32::MIN.to_i32(), Some(i32::MIN as i32)); - assert_eq!(i32::MIN.to_i64(), Some(i32::MIN as i64)); - assert_eq!(i32::MIN.to_uint(), None); - assert_eq!(i32::MIN.to_u8(), None); - assert_eq!(i32::MIN.to_u16(), None); - assert_eq!(i32::MIN.to_u32(), None); - assert_eq!(i32::MIN.to_u64(), None); - } - - #[test] - fn test_cast_range_i64_min() { - // i64::MIN.to_int() is word-size specific - assert_eq!(i64::MIN.to_i8(), None); - assert_eq!(i64::MIN.to_i16(), None); - assert_eq!(i64::MIN.to_i32(), None); - assert_eq!(i64::MIN.to_i64(), Some(i64::MIN as i64)); - assert_eq!(i64::MIN.to_uint(), None); - assert_eq!(i64::MIN.to_u8(), None); - assert_eq!(i64::MIN.to_u16(), None); - assert_eq!(i64::MIN.to_u32(), None); - assert_eq!(i64::MIN.to_u64(), None); - - #[cfg(target_pointer_width = "32")] - fn check_word_size() { - assert_eq!(i64::MIN.to_int(), None); - } - - #[cfg(target_pointer_width = "64")] - fn check_word_size() { - assert_eq!(i64::MIN.to_int(), Some(i64::MIN as isize)); - } - - check_word_size(); - } - - #[test] - fn test_cast_range_int_max() { - assert_eq!(isize::MAX.to_int(), Some(isize::MAX as isize)); - assert_eq!(isize::MAX.to_i8(), None); - assert_eq!(isize::MAX.to_i16(), None); - // isize::MAX.to_i32() is word-size specific - assert_eq!(isize::MAX.to_i64(), Some(isize::MAX as i64)); - assert_eq!(isize::MAX.to_u8(), None); - assert_eq!(isize::MAX.to_u16(), None); - // isize::MAX.to_u32() is word-size specific - assert_eq!(isize::MAX.to_u64(), Some(isize::MAX as u64)); - - #[cfg(target_pointer_width = "32")] - fn check_word_size() { - assert_eq!(isize::MAX.to_i32(), Some(isize::MAX as i32)); - assert_eq!(isize::MAX.to_u32(), Some(isize::MAX as u32)); - } - - #[cfg(target_pointer_width = "64")] - fn check_word_size() { - assert_eq!(isize::MAX.to_i32(), None); - assert_eq!(isize::MAX.to_u32(), None); - } - - check_word_size(); - } - - #[test] - fn test_cast_range_i8_max() { - assert_eq!(i8::MAX.to_int(), Some(i8::MAX as isize)); - assert_eq!(i8::MAX.to_i8(), Some(i8::MAX as i8)); - assert_eq!(i8::MAX.to_i16(), Some(i8::MAX as i16)); - assert_eq!(i8::MAX.to_i32(), Some(i8::MAX as i32)); - assert_eq!(i8::MAX.to_i64(), Some(i8::MAX as i64)); - assert_eq!(i8::MAX.to_uint(), Some(i8::MAX as usize)); - assert_eq!(i8::MAX.to_u8(), Some(i8::MAX as u8)); - assert_eq!(i8::MAX.to_u16(), Some(i8::MAX as u16)); - assert_eq!(i8::MAX.to_u32(), Some(i8::MAX as u32)); - assert_eq!(i8::MAX.to_u64(), Some(i8::MAX as u64)); - } - - #[test] - fn test_cast_range_i16_max() { - assert_eq!(i16::MAX.to_int(), Some(i16::MAX as isize)); - assert_eq!(i16::MAX.to_i8(), None); - assert_eq!(i16::MAX.to_i16(), Some(i16::MAX as i16)); - assert_eq!(i16::MAX.to_i32(), Some(i16::MAX as i32)); - assert_eq!(i16::MAX.to_i64(), Some(i16::MAX as i64)); - assert_eq!(i16::MAX.to_uint(), Some(i16::MAX as usize)); - assert_eq!(i16::MAX.to_u8(), None); - assert_eq!(i16::MAX.to_u16(), Some(i16::MAX as u16)); - assert_eq!(i16::MAX.to_u32(), Some(i16::MAX as u32)); - assert_eq!(i16::MAX.to_u64(), Some(i16::MAX as u64)); - } - - #[test] - fn test_cast_range_i32_max() { - assert_eq!(i32::MAX.to_int(), Some(i32::MAX as isize)); - assert_eq!(i32::MAX.to_i8(), None); - assert_eq!(i32::MAX.to_i16(), None); - assert_eq!(i32::MAX.to_i32(), Some(i32::MAX as i32)); - assert_eq!(i32::MAX.to_i64(), Some(i32::MAX as i64)); - assert_eq!(i32::MAX.to_uint(), Some(i32::MAX as usize)); - assert_eq!(i32::MAX.to_u8(), None); - assert_eq!(i32::MAX.to_u16(), None); - assert_eq!(i32::MAX.to_u32(), Some(i32::MAX as u32)); - assert_eq!(i32::MAX.to_u64(), Some(i32::MAX as u64)); - } - - #[test] - fn test_cast_range_i64_max() { - // i64::MAX.to_int() is word-size specific - assert_eq!(i64::MAX.to_i8(), None); - assert_eq!(i64::MAX.to_i16(), None); - assert_eq!(i64::MAX.to_i32(), None); - assert_eq!(i64::MAX.to_i64(), Some(i64::MAX as i64)); - // i64::MAX.to_uint() is word-size specific - assert_eq!(i64::MAX.to_u8(), None); - assert_eq!(i64::MAX.to_u16(), None); - assert_eq!(i64::MAX.to_u32(), None); - assert_eq!(i64::MAX.to_u64(), Some(i64::MAX as u64)); - - #[cfg(target_pointer_width = "32")] - fn check_word_size() { - assert_eq!(i64::MAX.to_int(), None); - assert_eq!(i64::MAX.to_uint(), None); - } - - #[cfg(target_pointer_width = "64")] - fn check_word_size() { - assert_eq!(i64::MAX.to_int(), Some(i64::MAX as isize)); - assert_eq!(i64::MAX.to_uint(), Some(i64::MAX as usize)); - } - - check_word_size(); - } - - #[test] - fn test_cast_range_uint_min() { - assert_eq!(usize::MIN.to_int(), Some(usize::MIN as isize)); - assert_eq!(usize::MIN.to_i8(), Some(usize::MIN as i8)); - assert_eq!(usize::MIN.to_i16(), Some(usize::MIN as i16)); - assert_eq!(usize::MIN.to_i32(), Some(usize::MIN as i32)); - assert_eq!(usize::MIN.to_i64(), Some(usize::MIN as i64)); - assert_eq!(usize::MIN.to_uint(), Some(usize::MIN as usize)); - assert_eq!(usize::MIN.to_u8(), Some(usize::MIN as u8)); - assert_eq!(usize::MIN.to_u16(), Some(usize::MIN as u16)); - assert_eq!(usize::MIN.to_u32(), Some(usize::MIN as u32)); - assert_eq!(usize::MIN.to_u64(), Some(usize::MIN as u64)); - } - - #[test] - fn test_cast_range_u8_min() { - assert_eq!(u8::MIN.to_int(), Some(u8::MIN as isize)); - assert_eq!(u8::MIN.to_i8(), Some(u8::MIN as i8)); - assert_eq!(u8::MIN.to_i16(), Some(u8::MIN as i16)); - assert_eq!(u8::MIN.to_i32(), Some(u8::MIN as i32)); - assert_eq!(u8::MIN.to_i64(), Some(u8::MIN as i64)); - assert_eq!(u8::MIN.to_uint(), Some(u8::MIN as usize)); - assert_eq!(u8::MIN.to_u8(), Some(u8::MIN as u8)); - assert_eq!(u8::MIN.to_u16(), Some(u8::MIN as u16)); - assert_eq!(u8::MIN.to_u32(), Some(u8::MIN as u32)); - assert_eq!(u8::MIN.to_u64(), Some(u8::MIN as u64)); - } - - #[test] - fn test_cast_range_u16_min() { - assert_eq!(u16::MIN.to_int(), Some(u16::MIN as isize)); - assert_eq!(u16::MIN.to_i8(), Some(u16::MIN as i8)); - assert_eq!(u16::MIN.to_i16(), Some(u16::MIN as i16)); - assert_eq!(u16::MIN.to_i32(), Some(u16::MIN as i32)); - assert_eq!(u16::MIN.to_i64(), Some(u16::MIN as i64)); - assert_eq!(u16::MIN.to_uint(), Some(u16::MIN as usize)); - assert_eq!(u16::MIN.to_u8(), Some(u16::MIN as u8)); - assert_eq!(u16::MIN.to_u16(), Some(u16::MIN as u16)); - assert_eq!(u16::MIN.to_u32(), Some(u16::MIN as u32)); - assert_eq!(u16::MIN.to_u64(), Some(u16::MIN as u64)); - } - - #[test] - fn test_cast_range_u32_min() { - assert_eq!(u32::MIN.to_int(), Some(u32::MIN as isize)); - assert_eq!(u32::MIN.to_i8(), Some(u32::MIN as i8)); - assert_eq!(u32::MIN.to_i16(), Some(u32::MIN as i16)); - assert_eq!(u32::MIN.to_i32(), Some(u32::MIN as i32)); - assert_eq!(u32::MIN.to_i64(), Some(u32::MIN as i64)); - assert_eq!(u32::MIN.to_uint(), Some(u32::MIN as usize)); - assert_eq!(u32::MIN.to_u8(), Some(u32::MIN as u8)); - assert_eq!(u32::MIN.to_u16(), Some(u32::MIN as u16)); - assert_eq!(u32::MIN.to_u32(), Some(u32::MIN as u32)); - assert_eq!(u32::MIN.to_u64(), Some(u32::MIN as u64)); - } - - #[test] - fn test_cast_range_u64_min() { - assert_eq!(u64::MIN.to_int(), Some(u64::MIN as isize)); - assert_eq!(u64::MIN.to_i8(), Some(u64::MIN as i8)); - assert_eq!(u64::MIN.to_i16(), Some(u64::MIN as i16)); - assert_eq!(u64::MIN.to_i32(), Some(u64::MIN as i32)); - assert_eq!(u64::MIN.to_i64(), Some(u64::MIN as i64)); - assert_eq!(u64::MIN.to_uint(), Some(u64::MIN as usize)); - assert_eq!(u64::MIN.to_u8(), Some(u64::MIN as u8)); - assert_eq!(u64::MIN.to_u16(), Some(u64::MIN as u16)); - assert_eq!(u64::MIN.to_u32(), Some(u64::MIN as u32)); - assert_eq!(u64::MIN.to_u64(), Some(u64::MIN as u64)); - } - - #[test] - fn test_cast_range_uint_max() { - assert_eq!(usize::MAX.to_int(), None); - assert_eq!(usize::MAX.to_i8(), None); - assert_eq!(usize::MAX.to_i16(), None); - assert_eq!(usize::MAX.to_i32(), None); - // usize::MAX.to_i64() is word-size specific - assert_eq!(usize::MAX.to_u8(), None); - assert_eq!(usize::MAX.to_u16(), None); - // usize::MAX.to_u32() is word-size specific - assert_eq!(usize::MAX.to_u64(), Some(usize::MAX as u64)); - - #[cfg(target_pointer_width = "32")] - fn check_word_size() { - assert_eq!(usize::MAX.to_u32(), Some(usize::MAX as u32)); - assert_eq!(usize::MAX.to_i64(), Some(usize::MAX as i64)); - } - - #[cfg(target_pointer_width = "64")] - fn check_word_size() { - assert_eq!(usize::MAX.to_u32(), None); - assert_eq!(usize::MAX.to_i64(), None); - } - - check_word_size(); - } - - #[test] - fn test_cast_range_u8_max() { - assert_eq!(u8::MAX.to_int(), Some(u8::MAX as isize)); - assert_eq!(u8::MAX.to_i8(), None); - assert_eq!(u8::MAX.to_i16(), Some(u8::MAX as i16)); - assert_eq!(u8::MAX.to_i32(), Some(u8::MAX as i32)); - assert_eq!(u8::MAX.to_i64(), Some(u8::MAX as i64)); - assert_eq!(u8::MAX.to_uint(), Some(u8::MAX as usize)); - assert_eq!(u8::MAX.to_u8(), Some(u8::MAX as u8)); - assert_eq!(u8::MAX.to_u16(), Some(u8::MAX as u16)); - assert_eq!(u8::MAX.to_u32(), Some(u8::MAX as u32)); - assert_eq!(u8::MAX.to_u64(), Some(u8::MAX as u64)); - } - - #[test] - fn test_cast_range_u16_max() { - assert_eq!(u16::MAX.to_int(), Some(u16::MAX as isize)); - assert_eq!(u16::MAX.to_i8(), None); - assert_eq!(u16::MAX.to_i16(), None); - assert_eq!(u16::MAX.to_i32(), Some(u16::MAX as i32)); - assert_eq!(u16::MAX.to_i64(), Some(u16::MAX as i64)); - assert_eq!(u16::MAX.to_uint(), Some(u16::MAX as usize)); - assert_eq!(u16::MAX.to_u8(), None); - assert_eq!(u16::MAX.to_u16(), Some(u16::MAX as u16)); - assert_eq!(u16::MAX.to_u32(), Some(u16::MAX as u32)); - assert_eq!(u16::MAX.to_u64(), Some(u16::MAX as u64)); - } - - #[test] - fn test_cast_range_u32_max() { - // u32::MAX.to_int() is word-size specific - assert_eq!(u32::MAX.to_i8(), None); - assert_eq!(u32::MAX.to_i16(), None); - assert_eq!(u32::MAX.to_i32(), None); - assert_eq!(u32::MAX.to_i64(), Some(u32::MAX as i64)); - assert_eq!(u32::MAX.to_uint(), Some(u32::MAX as usize)); - assert_eq!(u32::MAX.to_u8(), None); - assert_eq!(u32::MAX.to_u16(), None); - assert_eq!(u32::MAX.to_u32(), Some(u32::MAX as u32)); - assert_eq!(u32::MAX.to_u64(), Some(u32::MAX as u64)); - - #[cfg(target_pointer_width = "32")] - fn check_word_size() { - assert_eq!(u32::MAX.to_int(), None); - } - - #[cfg(target_pointer_width = "64")] - fn check_word_size() { - assert_eq!(u32::MAX.to_int(), Some(u32::MAX as isize)); - } - - check_word_size(); - } - - #[test] - fn test_cast_range_u64_max() { - assert_eq!(u64::MAX.to_int(), None); - assert_eq!(u64::MAX.to_i8(), None); - assert_eq!(u64::MAX.to_i16(), None); - assert_eq!(u64::MAX.to_i32(), None); - assert_eq!(u64::MAX.to_i64(), None); - // u64::MAX.to_uint() is word-size specific - assert_eq!(u64::MAX.to_u8(), None); - assert_eq!(u64::MAX.to_u16(), None); - assert_eq!(u64::MAX.to_u32(), None); - assert_eq!(u64::MAX.to_u64(), Some(u64::MAX as u64)); - - #[cfg(target_pointer_width = "32")] - fn check_word_size() { - assert_eq!(u64::MAX.to_uint(), None); - } - - #[cfg(target_pointer_width = "64")] - fn check_word_size() { - assert_eq!(u64::MAX.to_uint(), Some(u64::MAX as usize)); - } - - check_word_size(); - } + use ops::Mul; #[test] fn test_saturating_add_uint() { @@ -1596,23 +106,23 @@ mod tests { #[test] fn test_saturating_add_int() { use isize::{MIN,MAX}; - assert_eq!(3.saturating_add(5), 8); - assert_eq!(3.saturating_add(MAX-1), MAX); + assert_eq!(3i32.saturating_add(5), 8); + assert_eq!(3isize.saturating_add(MAX-1), MAX); assert_eq!(MAX.saturating_add(MAX), MAX); assert_eq!((MAX-2).saturating_add(1), MAX-1); - assert_eq!(3.saturating_add(-5), -2); + assert_eq!(3i32.saturating_add(-5), -2); assert_eq!(MIN.saturating_add(-1), MIN); - assert_eq!((-2).saturating_add(-MAX), MIN); + assert_eq!((-2isize).saturating_add(-MAX), MIN); } #[test] fn test_saturating_sub_int() { use isize::{MIN,MAX}; - assert_eq!(3.saturating_sub(5), -2); + assert_eq!(3i32.saturating_sub(5), -2); assert_eq!(MIN.saturating_sub(1), MIN); - assert_eq!((-2).saturating_sub(MAX), MIN); - assert_eq!(3.saturating_sub(-5), 8); - assert_eq!(3.saturating_sub(-(MAX-1)), MAX); + assert_eq!((-2isize).saturating_sub(MAX), MIN); + assert_eq!(3i32.saturating_sub(-5), 8); + assert_eq!(3isize.saturating_sub(-(MAX-1)), MAX); assert_eq!(MAX.saturating_sub(-MAX), MAX); assert_eq!((MAX-2).saturating_sub(-1), MAX-1); } @@ -1716,56 +226,10 @@ mod tests { test_checked_next_power_of_two! { test_checked_next_power_of_two_u64, u64 } test_checked_next_power_of_two! { test_checked_next_power_of_two_uint, usize } - #[derive(PartialEq, Debug)] - struct Value { x: isize } - - impl ToPrimitive for Value { - fn to_i64(&self) -> Option<i64> { self.x.to_i64() } - fn to_u64(&self) -> Option<u64> { self.x.to_u64() } - } - - impl FromPrimitive for Value { - fn from_i64(n: i64) -> Option<Value> { Some(Value { x: n as isize }) } - fn from_u64(n: u64) -> Option<Value> { Some(Value { x: n as isize }) } - } - - #[test] - fn test_to_primitive() { - let value = Value { x: 5 }; - assert_eq!(value.to_int(), Some(5)); - assert_eq!(value.to_i8(), Some(5)); - assert_eq!(value.to_i16(), Some(5)); - assert_eq!(value.to_i32(), Some(5)); - assert_eq!(value.to_i64(), Some(5)); - assert_eq!(value.to_uint(), Some(5)); - assert_eq!(value.to_u8(), Some(5)); - assert_eq!(value.to_u16(), Some(5)); - assert_eq!(value.to_u32(), Some(5)); - assert_eq!(value.to_u64(), Some(5)); - assert_eq!(value.to_f32(), Some(5f32)); - assert_eq!(value.to_f64(), Some(5f64)); - } - - #[test] - fn test_from_primitive() { - assert_eq!(from_int(5), Some(Value { x: 5 })); - assert_eq!(from_i8(5), Some(Value { x: 5 })); - assert_eq!(from_i16(5), Some(Value { x: 5 })); - assert_eq!(from_i32(5), Some(Value { x: 5 })); - assert_eq!(from_i64(5), Some(Value { x: 5 })); - assert_eq!(from_uint(5), Some(Value { x: 5 })); - assert_eq!(from_u8(5), Some(Value { x: 5 })); - assert_eq!(from_u16(5), Some(Value { x: 5 })); - assert_eq!(from_u32(5), Some(Value { x: 5 })); - assert_eq!(from_u64(5), Some(Value { x: 5 })); - assert_eq!(from_f32(5f32), Some(Value { x: 5 })); - assert_eq!(from_f64(5f64), Some(Value { x: 5 })); - } - #[test] fn test_pow() { - fn naive_pow<T: Int>(base: T, exp: usize) -> T { - let one: T = Int::one(); + fn naive_pow<T: Mul<Output=T> + One + Copy>(base: T, exp: usize) -> T { + let one: T = T::one(); (0..exp).fold(one, |acc, _| acc * base) } macro_rules! assert_pow { @@ -1775,11 +239,11 @@ mod tests { assert_eq!(result, naive_pow($num, $exp)); }} } - assert_pow!((3, 0 ) => 1); - assert_pow!((5, 1 ) => 5); - assert_pow!((-4, 2 ) => 16); - assert_pow!((8, 3 ) => 512); - assert_pow!((2u64, 50) => 1125899906842624); + assert_pow!((3u32, 0 ) => 1); + assert_pow!((5u32, 1 ) => 5); + assert_pow!((-4i32, 2 ) => 16); + assert_pow!((8u32, 3 ) => 512); + assert_pow!((2u64, 50) => 1125899906842624); } #[test] @@ -1854,12 +318,11 @@ mod tests { mod bench { extern crate test; use self::test::Bencher; - use num::Int; use prelude::v1::*; #[bench] fn bench_pow_function(b: &mut Bencher) { - let v = (0..1024).collect::<Vec<_>>(); - b.iter(|| {v.iter().fold(0, |old, new| old.pow(*new as u32));}); + let v = (0..1024).collect::<Vec<u32>>(); + b.iter(|| {v.iter().fold(0u32, |old, new| old.pow(*new as u32));}); } } diff --git a/src/libstd/num/strconv.rs b/src/libstd/num/strconv.rs deleted file mode 100644 index ce1da4742d1..00000000000 --- a/src/libstd/num/strconv.rs +++ /dev/null @@ -1,556 +0,0 @@ -// Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT -// file at the top-level directory of this distribution and at -// http://rust-lang.org/COPYRIGHT. -// -// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or -// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license -// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your -// option. This file may not be copied, modified, or distributed -// except according to those terms. - -#![allow(missing_docs)] -#![allow(deprecated)] - -use self::ExponentFormat::*; -use self::SignificantDigits::*; -use self::SignFormat::*; - -use char; -use num::{self, Int, Float, ToPrimitive}; -use num::FpCategory as Fp; -use ops::FnMut; -use string::String; -use vec::Vec; - -/// A flag that specifies whether to use exponential (scientific) notation. -#[derive(Copy, Clone)] -pub enum ExponentFormat { - /// Do not use exponential notation. - ExpNone, - /// Use exponential notation with the exponent having a base of 10 and the - /// exponent sign being `e` or `E`. For example, 1000 would be printed - /// 1e3. - ExpDec, - /// Use exponential notation with the exponent having a base of 2 and the - /// exponent sign being `p` or `P`. For example, 8 would be printed 1p3. - ExpBin, -} - -/// The number of digits used for emitting the fractional part of a number, if -/// any. -#[derive(Copy, Clone)] -pub enum SignificantDigits { - /// All calculable digits will be printed. - /// - /// Note that bignums or fractions may cause a surprisingly large number - /// of digits to be printed. - DigAll, - - /// At most the given number of digits will be printed, truncating any - /// trailing zeroes. - DigMax(usize), - - /// Precisely the given number of digits will be printed. - DigExact(usize) -} - -/// How to emit the sign of a number. -#[derive(Copy, Clone)] -pub enum SignFormat { - /// No sign will be printed. The exponent sign will also be emitted. - SignNone, - /// `-` will be printed for negative values, but no sign will be emitted - /// for positive numbers. - SignNeg, - /// `+` will be printed for positive values, and `-` will be printed for - /// negative values. - SignAll, -} - -/// Converts an integral number to its string representation as a byte vector. -/// This is meant to be a common base implementation for all integral string -/// conversion functions like `to_string()` or `to_str_radix()`. -/// -/// # Arguments -/// -/// - `num` - The number to convert. Accepts any number that -/// implements the numeric traits. -/// - `radix` - Base to use. Accepts only the values 2-36. -/// - `sign` - How to emit the sign. Options are: -/// - `SignNone`: No sign at all. Basically emits `abs(num)`. -/// - `SignNeg`: Only `-` on negative values. -/// - `SignAll`: Both `+` on positive, and `-` on negative numbers. -/// - `f` - a callback which will be invoked for each ascii character -/// which composes the string representation of this integer -/// -/// # Panics -/// -/// - Panics if `radix` < 2 or `radix` > 36. -fn int_to_str_bytes_common<T, F>(num: T, radix: usize, sign: SignFormat, mut f: F) where - T: Int, - F: FnMut(u8), -{ - assert!(2 <= radix && radix <= 36); - - let _0: T = Int::zero(); - - let neg = num < _0; - let radix_gen: T = num::cast(radix).unwrap(); - - let mut deccum = num; - // This is just for integral types, the largest of which is a u64. The - // smallest base that we can have is 2, so the most number of digits we're - // ever going to have is 64 - let mut buf = [0; 64]; - let mut cur = 0; - - // Loop at least once to make sure at least a `0` gets emitted. - loop { - // Calculate the absolute value of each digit instead of only - // doing it once for the whole number because a - // representable negative number doesn't necessary have an - // representable additive inverse of the same type - // (See twos complement). But we assume that for the - // numbers [-35 .. 0] we always have [0 .. 35]. - let current_digit_signed = deccum % radix_gen; - let current_digit = if current_digit_signed < _0 { - _0 - current_digit_signed - } else { - current_digit_signed - }; - buf[cur] = match current_digit.to_u8().unwrap() { - i @ 0...9 => b'0' + i, - i => b'a' + (i - 10), - }; - cur += 1; - - deccum = deccum / radix_gen; - // No more digits to calculate for the non-fractional part -> break - if deccum == _0 { break; } - } - - // Decide what sign to put in front - match sign { - SignNeg | SignAll if neg => { f(b'-'); } - SignAll => { f(b'+'); } - _ => () - } - - // We built the number in reverse order, so un-reverse it here - while cur > 0 { - cur -= 1; - f(buf[cur]); - } -} - -/// Converts a number to its string representation as a byte vector. -/// This is meant to be a common base implementation for all numeric string -/// conversion functions like `to_string()` or `to_str_radix()`. -/// -/// # Arguments -/// -/// - `num` - The number to convert. Accepts any number that -/// implements the numeric traits. -/// - `radix` - Base to use. Accepts only the values 2-36. If the exponential notation -/// is used, then this base is only used for the significand. The exponent -/// itself always printed using a base of 10. -/// - `negative_zero` - Whether to treat the special value `-0` as -/// `-0` or as `+0`. -/// - `sign` - How to emit the sign. See `SignFormat`. -/// - `digits` - The amount of digits to use for emitting the fractional -/// part, if any. See `SignificantDigits`. -/// - `exp_format` - Whether or not to use the exponential (scientific) notation. -/// See `ExponentFormat`. -/// - `exp_capital` - Whether or not to use a capital letter for the exponent sign, if -/// exponential notation is desired. -/// -/// # Return value -/// -/// A tuple containing the byte vector, and a boolean flag indicating -/// whether it represents a special value like `inf`, `-inf`, `NaN` or not. -/// It returns a tuple because there can be ambiguity between a special value -/// and a number representation at higher bases. -/// -/// # Panics -/// -/// - Panics if `radix` < 2 or `radix` > 36. -/// - Panics if `radix` > 14 and `exp_format` is `ExpDec` due to conflict -/// between digit and exponent sign `'e'`. -/// - Panics if `radix` > 25 and `exp_format` is `ExpBin` due to conflict -/// between digit and exponent sign `'p'`. -pub fn float_to_str_bytes_common<T: Float>( - num: T, radix: u32, negative_zero: bool, - sign: SignFormat, digits: SignificantDigits, exp_format: ExponentFormat, exp_upper: bool - ) -> (Vec<u8>, bool) { - assert!(2 <= radix && radix <= 36); - match exp_format { - ExpDec if radix >= DIGIT_E_RADIX // decimal exponent 'e' - => panic!("float_to_str_bytes_common: radix {} incompatible with \ - use of 'e' as decimal exponent", radix), - ExpBin if radix >= DIGIT_P_RADIX // binary exponent 'p' - => panic!("float_to_str_bytes_common: radix {} incompatible with \ - use of 'p' as binary exponent", radix), - _ => () - } - - let _0: T = Float::zero(); - let _1: T = Float::one(); - - match num.classify() { - Fp::Nan => { return (b"NaN".to_vec(), true); } - Fp::Infinite if num > _0 => { - return match sign { - SignAll => (b"+inf".to_vec(), true), - _ => (b"inf".to_vec(), true) - }; - } - Fp::Infinite if num < _0 => { - return match sign { - SignNone => (b"inf".to_vec(), true), - _ => (b"-inf".to_vec(), true), - }; - } - _ => {} - } - - let neg = num < _0 || (negative_zero && _1 / num == Float::neg_infinity()); - let mut buf = Vec::new(); - let radix_gen: T = num::cast(radix as isize).unwrap(); - - let (num, exp) = match exp_format { - ExpNone => (num, 0), - ExpDec | ExpBin => { - if num == _0 { - (num, 0) - } else { - let (exp, exp_base) = match exp_format { - ExpDec => (num.abs().log10().floor(), num::cast::<f64, T>(10.0f64).unwrap()), - ExpBin => (num.abs().log2().floor(), num::cast::<f64, T>(2.0f64).unwrap()), - ExpNone => unreachable!() - }; - - (num / exp_base.powf(exp), num::cast::<T, i32>(exp).unwrap()) - } - } - }; - - // First emit the non-fractional part, looping at least once to make - // sure at least a `0` gets emitted. - let mut deccum = num.trunc(); - loop { - // Calculate the absolute value of each digit instead of only - // doing it once for the whole number because a - // representable negative number doesn't necessary have an - // representable additive inverse of the same type - // (See twos complement). But we assume that for the - // numbers [-35 .. 0] we always have [0 .. 35]. - let current_digit = (deccum % radix_gen).abs(); - - // Decrease the deccumulator one digit at a time - deccum = deccum / radix_gen; - deccum = deccum.trunc(); - - buf.push(char::from_digit(current_digit.to_isize().unwrap() as u32, radix) - .unwrap() as u8); - - // No more digits to calculate for the non-fractional part -> break - if deccum == _0 { break; } - } - - // If limited digits, calculate one digit more for rounding. - let (limit_digits, digit_count, exact) = match digits { - DigAll => (false, 0, false), - DigMax(count) => (true, count+1, false), - DigExact(count) => (true, count+1, true) - }; - - // Decide what sign to put in front - match sign { - SignNeg | SignAll if neg => { - buf.push(b'-'); - } - SignAll => { - buf.push(b'+'); - } - _ => () - } - - buf.reverse(); - - // Remember start of the fractional digits. - // Points one beyond end of buf if none get generated, - // or at the '.' otherwise. - let start_fractional_digits = buf.len(); - - // Now emit the fractional part, if any - deccum = num.fract(); - if deccum != _0 || (limit_digits && exact && digit_count > 0) { - buf.push(b'.'); - let mut dig = 0; - - // calculate new digits while - // - there is no limit and there are digits left - // - or there is a limit, it's not reached yet and - // - it's exact - // - or it's a maximum, and there are still digits left - while (!limit_digits && deccum != _0) - || (limit_digits && dig < digit_count && ( - exact - || (!exact && deccum != _0) - ) - ) { - // Shift first fractional digit into the integer part - deccum = deccum * radix_gen; - - // Calculate the absolute value of each digit. - // See note in first loop. - let current_digit = deccum.trunc().abs(); - - buf.push(char::from_digit( - current_digit.to_isize().unwrap() as u32, radix).unwrap() as u8); - - // Decrease the deccumulator one fractional digit at a time - deccum = deccum.fract(); - dig += 1; - } - - // If digits are limited, and that limit has been reached, - // cut off the one extra digit, and depending on its value - // round the remaining ones. - if limit_digits && dig == digit_count { - let ascii2value = |chr: u8| { - (chr as char).to_digit(radix).unwrap() - }; - let value2ascii = |val: u32| { - char::from_digit(val, radix).unwrap() as u8 - }; - - let extra_digit = ascii2value(buf.pop().unwrap()); - if extra_digit >= radix / 2 { // -> need to round - let mut i: isize = buf.len() as isize - 1; - loop { - // If reached left end of number, have to - // insert additional digit: - if i < 0 - || buf[i as usize] == b'-' - || buf[i as usize] == b'+' { - buf.insert((i + 1) as usize, value2ascii(1)); - break; - } - - // Skip the '.' - if buf[i as usize] == b'.' { i -= 1; continue; } - - // Either increment the digit, - // or set to 0 if max and carry the 1. - let current_digit = ascii2value(buf[i as usize]); - if current_digit < (radix - 1) { - buf[i as usize] = value2ascii(current_digit+1); - break; - } else { - buf[i as usize] = value2ascii(0); - i -= 1; - } - } - } - } - } - - // if number of digits is not exact, remove all trailing '0's up to - // and including the '.' - if !exact { - let buf_max_i = buf.len() - 1; - - // index to truncate from - let mut i = buf_max_i; - - // discover trailing zeros of fractional part - while i > start_fractional_digits && buf[i] == b'0' { - i -= 1; - } - - // Only attempt to truncate digits if buf has fractional digits - if i >= start_fractional_digits { - // If buf ends with '.', cut that too. - if buf[i] == b'.' { i -= 1 } - - // only resize buf if we actually remove digits - if i < buf_max_i { - buf = buf[.. (i + 1)].to_vec(); - } - } - } // If exact and trailing '.', just cut that - else { - let max_i = buf.len() - 1; - if buf[max_i] == b'.' { - buf = buf[.. max_i].to_vec(); - } - } - - match exp_format { - ExpNone => (), - _ => { - buf.push(match exp_format { - ExpDec if exp_upper => 'E', - ExpDec if !exp_upper => 'e', - ExpBin if exp_upper => 'P', - ExpBin if !exp_upper => 'p', - _ => unreachable!() - } as u8); - - int_to_str_bytes_common(exp, 10, sign, |c| buf.push(c)); - } - } - - (buf, false) -} - -/// Converts a number to its string representation. This is a wrapper for -/// `to_str_bytes_common()`, for details see there. -#[inline] -pub fn float_to_str_common<T: Float>( - num: T, radix: u32, negative_zero: bool, - sign: SignFormat, digits: SignificantDigits, exp_format: ExponentFormat, exp_capital: bool - ) -> (String, bool) { - let (bytes, special) = float_to_str_bytes_common(num, radix, - negative_zero, sign, digits, exp_format, exp_capital); - (String::from_utf8(bytes).unwrap(), special) -} - -// Some constants for from_str_bytes_common's input validation, -// they define minimum radix values for which the character is a valid digit. -const DIGIT_P_RADIX: u32 = ('p' as u32) - ('a' as u32) + 11; -const DIGIT_E_RADIX: u32 = ('e' as u32) - ('a' as u32) + 11; - -#[cfg(test)] -mod tests { - use core::num::wrapping::WrappingOps; - use string::ToString; - - #[test] - fn test_int_to_str_overflow() { - let mut i8_val: i8 = 127; - assert_eq!(i8_val.to_string(), "127"); - - i8_val = i8_val.wrapping_add(1); - assert_eq!(i8_val.to_string(), "-128"); - - let mut i16_val: i16 = 32_767; - assert_eq!(i16_val.to_string(), "32767"); - - i16_val = i16_val.wrapping_add(1); - assert_eq!(i16_val.to_string(), "-32768"); - - let mut i32_val: i32 = 2_147_483_647; - assert_eq!(i32_val.to_string(), "2147483647"); - - i32_val = i32_val.wrapping_add(1); - assert_eq!(i32_val.to_string(), "-2147483648"); - - let mut i64_val: i64 = 9_223_372_036_854_775_807; - assert_eq!(i64_val.to_string(), "9223372036854775807"); - - i64_val = i64_val.wrapping_add(1); - assert_eq!(i64_val.to_string(), "-9223372036854775808"); - } -} - -#[cfg(test)] -mod bench { - #![allow(deprecated)] // rand - extern crate test; - - mod usize { - use super::test::Bencher; - use rand::{thread_rng, Rng}; - use std::fmt; - - #[inline] - fn to_string(x: usize, base: u8) { - format!("{}", fmt::radix(x, base)); - } - - #[bench] - fn to_str_bin(b: &mut Bencher) { - let mut rng = thread_rng(); - b.iter(|| { to_string(rng.gen::<usize>(), 2); }) - } - - #[bench] - fn to_str_oct(b: &mut Bencher) { - let mut rng = thread_rng(); - b.iter(|| { to_string(rng.gen::<usize>(), 8); }) - } - - #[bench] - fn to_str_dec(b: &mut Bencher) { - let mut rng = thread_rng(); - b.iter(|| { to_string(rng.gen::<usize>(), 10); }) - } - - #[bench] - fn to_str_hex(b: &mut Bencher) { - let mut rng = thread_rng(); - b.iter(|| { to_string(rng.gen::<usize>(), 16); }) - } - - #[bench] - fn to_str_base_36(b: &mut Bencher) { - let mut rng = thread_rng(); - b.iter(|| { to_string(rng.gen::<usize>(), 36); }) - } - } - - mod isize { - use super::test::Bencher; - use rand::{thread_rng, Rng}; - use std::fmt; - - #[inline] - fn to_string(x: isize, base: u8) { - format!("{}", fmt::radix(x, base)); - } - - #[bench] - fn to_str_bin(b: &mut Bencher) { - let mut rng = thread_rng(); - b.iter(|| { to_string(rng.gen::<isize>(), 2); }) - } - - #[bench] - fn to_str_oct(b: &mut Bencher) { - let mut rng = thread_rng(); - b.iter(|| { to_string(rng.gen::<isize>(), 8); }) - } - - #[bench] - fn to_str_dec(b: &mut Bencher) { - let mut rng = thread_rng(); - b.iter(|| { to_string(rng.gen::<isize>(), 10); }) - } - - #[bench] - fn to_str_hex(b: &mut Bencher) { - let mut rng = thread_rng(); - b.iter(|| { to_string(rng.gen::<isize>(), 16); }) - } - - #[bench] - fn to_str_base_36(b: &mut Bencher) { - let mut rng = thread_rng(); - b.iter(|| { to_string(rng.gen::<isize>(), 36); }) - } - } - - mod f64 { - use super::test::Bencher; - use rand::{thread_rng, Rng}; - use f64; - - #[bench] - fn float_to_string(b: &mut Bencher) { - let mut rng = thread_rng(); - b.iter(|| { f64::to_string(rng.gen()); }) - } - } -} diff --git a/src/libstd/num/uint_macros.rs b/src/libstd/num/uint_macros.rs index c9e6a8f66d1..96b0ba1c77f 100644 --- a/src/libstd/num/uint_macros.rs +++ b/src/libstd/num/uint_macros.rs @@ -12,12 +12,11 @@ #![doc(hidden)] #![allow(unsigned_negation)] -macro_rules! uint_module { ($T:ty) => ( +macro_rules! uint_module { ($T:ident) => ( #[cfg(test)] mod tests { use prelude::v1::*; - use num::FromStrRadix; fn from_str<T: ::str::FromStr>(t: &str) -> Option<T> { ::str::FromStr::from_str(t).ok() @@ -38,15 +37,15 @@ mod tests { #[test] pub fn test_parse_bytes() { - assert_eq!(FromStrRadix::from_str_radix("123", 10), Ok(123 as $T)); - assert_eq!(FromStrRadix::from_str_radix("1001", 2), Ok(9 as $T)); - assert_eq!(FromStrRadix::from_str_radix("123", 8), Ok(83 as $T)); - assert_eq!(FromStrRadix::from_str_radix("123", 16), Ok(291 as u16)); - assert_eq!(FromStrRadix::from_str_radix("ffff", 16), Ok(65535 as u16)); - assert_eq!(FromStrRadix::from_str_radix("z", 36), Ok(35 as $T)); - - assert_eq!(FromStrRadix::from_str_radix("Z", 10).ok(), None::<$T>); - assert_eq!(FromStrRadix::from_str_radix("_", 2).ok(), None::<$T>); + assert_eq!($T::from_str_radix("123", 10), Ok(123 as $T)); + assert_eq!($T::from_str_radix("1001", 2), Ok(9 as $T)); + assert_eq!($T::from_str_radix("123", 8), Ok(83 as $T)); + assert_eq!(u16::from_str_radix("123", 16), Ok(291 as u16)); + assert_eq!(u16::from_str_radix("ffff", 16), Ok(65535 as u16)); + assert_eq!($T::from_str_radix("z", 36), Ok(35 as $T)); + + assert_eq!($T::from_str_radix("Z", 10).ok(), None::<$T>); + assert_eq!($T::from_str_radix("_", 2).ok(), None::<$T>); } } diff --git a/src/libstd/path.rs b/src/libstd/path.rs index 26aaa63aabb..e8052041aeb 100644 --- a/src/libstd/path.rs +++ b/src/libstd/path.rs @@ -110,7 +110,7 @@ use string::String; use vec::Vec; use fmt; -use ffi::{OsStr, OsString, AsOsStr}; +use ffi::{OsStr, OsString}; use self::platform::{is_sep_byte, is_verbatim_sep, MAIN_SEP_STR, parse_prefix}; @@ -1185,14 +1185,6 @@ impl AsRef<OsStr> for PathBuf { } #[stable(feature = "rust1", since = "1.0.0")] -#[deprecated(since = "1.0.0", reason = "trait is deprecated")] -impl AsOsStr for PathBuf { - fn as_os_str(&self) -> &OsStr { - &self.inner[..] - } -} - -#[stable(feature = "rust1", since = "1.0.0")] impl Into<OsString> for PathBuf { fn into(self) -> OsString { self.inner @@ -1653,14 +1645,6 @@ impl AsRef<OsStr> for Path { } #[stable(feature = "rust1", since = "1.0.0")] -#[deprecated(since = "1.0.0", reason = "trait is deprecated")] -impl AsOsStr for Path { - fn as_os_str(&self) -> &OsStr { - &self.inner - } -} - -#[stable(feature = "rust1", since = "1.0.0")] impl fmt::Debug for Path { fn fmt(&self, formatter: &mut fmt::Formatter) -> Result<(), fmt::Error> { self.inner.fmt(formatter) @@ -1711,22 +1695,6 @@ impl cmp::Ord for Path { } } -/// Freely convertible to a `Path`. -#[unstable(feature = "std_misc")] -#[deprecated(since = "1.0.0", reason = "use std::convert::AsRef<Path> instead")] -pub trait AsPath { - /// Converts to a `Path`. - #[unstable(feature = "std_misc")] - fn as_path(&self) -> &Path; -} - -#[unstable(feature = "std_misc")] -#[deprecated(since = "1.0.0", reason = "use std::convert::AsRef<Path> instead")] -#[allow(deprecated)] -impl<T: AsOsStr + ?Sized> AsPath for T { - fn as_path(&self) -> &Path { Path::new(self.as_os_str()) } -} - #[stable(feature = "rust1", since = "1.0.0")] impl AsRef<Path> for Path { fn as_ref(&self) -> &Path { self } diff --git a/src/libstd/rand/reader.rs b/src/libstd/rand/reader.rs index f8dd6a00c7f..2837bac4456 100644 --- a/src/libstd/rand/reader.rs +++ b/src/libstd/rand/reader.rs @@ -67,7 +67,6 @@ mod test { use prelude::v1::*; use super::ReaderRng; - use num::Int; use rand::Rng; #[test] @@ -78,18 +77,18 @@ mod test { 0, 0, 0, 0, 0, 0, 0, 3][..]; let mut rng = ReaderRng::new(v); - assert_eq!(rng.next_u64(), 1.to_be()); - assert_eq!(rng.next_u64(), 2.to_be()); - assert_eq!(rng.next_u64(), 3.to_be()); + assert_eq!(rng.next_u64(), 1u64.to_be()); + assert_eq!(rng.next_u64(), 2u64.to_be()); + assert_eq!(rng.next_u64(), 3u64.to_be()); } #[test] fn test_reader_rng_u32() { let v = &[0, 0, 0, 1, 0, 0, 0, 2, 0, 0, 0, 3][..]; let mut rng = ReaderRng::new(v); - assert_eq!(rng.next_u32(), 1.to_be()); - assert_eq!(rng.next_u32(), 2.to_be()); - assert_eq!(rng.next_u32(), 3.to_be()); + assert_eq!(rng.next_u32(), 1u32.to_be()); + assert_eq!(rng.next_u32(), 2u32.to_be()); + assert_eq!(rng.next_u32(), 3u32.to_be()); } #[test] fn test_reader_rng_fill_bytes() { diff --git a/src/libstd/sync/condvar.rs b/src/libstd/sync/condvar.rs index fcb0d2c0b2d..c2964b7a4f1 100644 --- a/src/libstd/sync/condvar.rs +++ b/src/libstd/sync/condvar.rs @@ -161,14 +161,6 @@ impl Condvar { } } - /// Deprecated: use `wait_timeout_ms` instead. - #[unstable(feature = "std_misc")] - #[deprecated(since = "1.0.0", reason = "use wait_timeout_ms instead")] - pub fn wait_timeout<'a, T>(&self, guard: MutexGuard<'a, T>, dur: Duration) - -> LockResult<(MutexGuard<'a, T>, bool)> { - self.wait_timeout_ms(guard, dur.num_milliseconds() as u32) - } - /// Waits on this condition variable for a notification, timing out after a /// specified duration. /// diff --git a/src/libstd/sys/common/wtf8.rs b/src/libstd/sys/common/wtf8.rs index c44bf08cae7..56a952e6a7e 100644 --- a/src/libstd/sys/common/wtf8.rs +++ b/src/libstd/sys/common/wtf8.rs @@ -37,8 +37,6 @@ use fmt; use hash::{Hash, Hasher}; use iter::FromIterator; use mem; -#[allow(deprecated)] // Int -use num::Int; use ops; use slice; use str; diff --git a/src/libstd/sys/unix/condvar.rs b/src/libstd/sys/unix/condvar.rs index 90dfebc4c45..ed6382e000a 100644 --- a/src/libstd/sys/unix/condvar.rs +++ b/src/libstd/sys/unix/condvar.rs @@ -17,7 +17,6 @@ use sys::mutex::{self, Mutex}; use sys::time; use sys::sync as ffi; use time::Duration; -use num::{Int, NumCast}; pub struct Condvar { inner: UnsafeCell<ffi::pthread_cond_t> } @@ -70,8 +69,8 @@ impl Condvar { let r = ffi::gettimeofday(&mut sys_now, ptr::null_mut()); debug_assert_eq!(r, 0); - let seconds = NumCast::from(dur.num_seconds()); - let timeout = match seconds.and_then(|s| sys_now.tv_sec.checked_add(s)) { + let seconds = dur.num_seconds() as libc::time_t; + let timeout = match sys_now.tv_sec.checked_add(seconds) { Some(sec) => { libc::timespec { tv_sec: sec, @@ -81,7 +80,7 @@ impl Condvar { } None => { libc::timespec { - tv_sec: Int::max_value(), + tv_sec: <libc::time_t>::max_value(), tv_nsec: 1_000_000_000 - 1, } } diff --git a/src/libstd/sys/unix/mod.rs b/src/libstd/sys/unix/mod.rs index a8a6219f398..d99753a6a4c 100644 --- a/src/libstd/sys/unix/mod.rs +++ b/src/libstd/sys/unix/mod.rs @@ -15,7 +15,8 @@ use prelude::v1::*; use io::{self, ErrorKind}; use libc; -use num::{Int, SignedInt}; +use num::One; +use ops::Neg; pub mod backtrace; pub mod c; @@ -63,23 +64,8 @@ pub fn decode_error_kind(errno: i32) -> ErrorKind { } } -#[inline] -#[allow(deprecated)] -pub fn retry<T, F> (mut f: F) -> T where - T: SignedInt, - F: FnMut() -> T, -{ - let one: T = Int::one(); - loop { - let n = f(); - if n == -one && os::errno() == libc::EINTR as i32 { } - else { return n } - } -} - -#[allow(deprecated)] -pub fn cvt<T: SignedInt>(t: T) -> io::Result<T> { - let one: T = Int::one(); +pub fn cvt<T: One + PartialEq + Neg<Output=T>>(t: T) -> io::Result<T> { + let one: T = T::one(); if t == -one { Err(io::Error::last_os_error()) } else { @@ -89,7 +75,7 @@ pub fn cvt<T: SignedInt>(t: T) -> io::Result<T> { #[allow(deprecated)] pub fn cvt_r<T, F>(mut f: F) -> io::Result<T> - where T: SignedInt, F: FnMut() -> T + where T: One + PartialEq + Neg<Output=T>, F: FnMut() -> T { loop { match cvt(f()) { diff --git a/src/libstd/sys/unix/process2.rs b/src/libstd/sys/unix/process2.rs index caa7b4eb29c..4e7c4d241f5 100644 --- a/src/libstd/sys/unix/process2.rs +++ b/src/libstd/sys/unix/process2.rs @@ -19,7 +19,7 @@ use io::{self, Error, ErrorKind}; use libc::{self, pid_t, c_void, c_int, gid_t, uid_t}; use ptr; use sys::pipe2::AnonPipe; -use sys::{self, retry, c, cvt}; +use sys::{self, c, cvt, cvt_r}; use sys::fs2::{File, OpenOptions}; //////////////////////////////////////////////////////////////////////////////// @@ -273,7 +273,7 @@ impl Process { } } }; - retry(|| libc::dup2(fd.raw(), dst)) != -1 + cvt_r(|| libc::dup2(fd.raw(), dst)).is_ok() }; if !setup(in_fd, libc::STDIN_FILENO) { fail(&mut output) } @@ -317,19 +317,19 @@ impl Process { pub fn wait(&self) -> io::Result<ExitStatus> { let mut status = 0 as c_int; - try!(cvt(retry(|| unsafe { c::waitpid(self.pid, &mut status, 0) }))); + try!(cvt_r(|| unsafe { c::waitpid(self.pid, &mut status, 0) })); Ok(translate_status(status)) } pub fn try_wait(&self) -> Option<ExitStatus> { let mut status = 0 as c_int; - match retry(|| unsafe { + match cvt_r(|| unsafe { c::waitpid(self.pid, &mut status, c::WNOHANG) }) { - n if n == self.pid => Some(translate_status(status)), - 0 => None, - n => panic!("unknown waitpid error `{}`: {}", n, - io::Error::last_os_error()), + Ok(0) => None, + Ok(n) if n == self.pid => Some(translate_status(status)), + Ok(n) => panic!("unkown pid: {}", n), + Err(e) => panic!("unknown waitpid error: {}", e), } } } diff --git a/src/libstd/sys/windows/fs2.rs b/src/libstd/sys/windows/fs2.rs index 07612d125e1..af61eec319c 100644 --- a/src/libstd/sys/windows/fs2.rs +++ b/src/libstd/sys/windows/fs2.rs @@ -13,7 +13,7 @@ use io::prelude::*; use os::windows::prelude::*; use default::Default; -use ffi::{OsString, AsOsStr}; +use ffi::OsString; use fmt; use io::{self, Error, SeekFrom}; use libc::{self, HANDLE}; diff --git a/src/libstd/sys/windows/mod.rs b/src/libstd/sys/windows/mod.rs index 1171c6c068b..5ae5f6f201b 100644 --- a/src/libstd/sys/windows/mod.rs +++ b/src/libstd/sys/windows/mod.rs @@ -17,8 +17,7 @@ use prelude::v1::*; use ffi::{OsStr, OsString}; use io::{self, ErrorKind}; use libc; -#[allow(deprecated)] -use num::Int; +use num::Zero; use os::windows::ffi::{OsStrExt, OsStringExt}; use path::PathBuf; @@ -144,9 +143,8 @@ pub fn truncate_utf16_at_nul<'a>(v: &'a [u16]) -> &'a [u16] { } } -#[allow(deprecated)] -fn cvt<I: Int>(i: I) -> io::Result<I> { - if i == Int::zero() { +fn cvt<I: PartialEq + Zero>(i: I) -> io::Result<I> { + if i == I::zero() { Err(io::Error::last_os_error()) } else { Ok(i) diff --git a/src/libstd/sys/windows/net.rs b/src/libstd/sys/windows/net.rs index cbc3876dbb1..6bbcd968157 100644 --- a/src/libstd/sys/windows/net.rs +++ b/src/libstd/sys/windows/net.rs @@ -15,8 +15,8 @@ use libc::consts::os::extra::INVALID_SOCKET; use libc::{self, c_int, c_void}; use mem; use net::SocketAddr; -#[allow(deprecated)] -use num::{SignedInt, Int}; +use num::One; +use ops::Neg; use rt; use sync::{Once, ONCE_INIT}; use sys::c; @@ -49,11 +49,8 @@ fn last_error() -> io::Error { /// Checks if the signed integer is the Windows constant `SOCKET_ERROR` (-1) /// and if so, returns the last error from the Windows socket interface. . This /// function must be called before another call to the socket API is made. -/// -/// FIXME: generics needed? -#[allow(deprecated)] -pub fn cvt<T: SignedInt>(t: T) -> io::Result<T> { - let one: T = Int::one(); +pub fn cvt<T: One + Neg<Output=T> + PartialEq>(t: T) -> io::Result<T> { + let one: T = T::one(); if t == -one { Err(last_error()) } else { @@ -70,7 +67,9 @@ pub fn cvt_gai(err: c_int) -> io::Result<()> { /// Provides the functionality of `cvt` for a closure. #[allow(deprecated)] -pub fn cvt_r<T: SignedInt, F>(mut f: F) -> io::Result<T> where F: FnMut() -> T { +pub fn cvt_r<T, F>(mut f: F) -> io::Result<T> + where F: FnMut() -> T, T: One + Neg<Output=T> + PartialEq +{ cvt(f()) } diff --git a/src/libstd/sys/windows/process2.rs b/src/libstd/sys/windows/process2.rs index 16c2a9125ea..5ddcf3d1ea2 100644 --- a/src/libstd/sys/windows/process2.rs +++ b/src/libstd/sys/windows/process2.rs @@ -140,7 +140,7 @@ impl Process { // read the *child's* PATH if one is provided. See #15149 for more details. let program = cfg.env.as_ref().and_then(|env| { for (key, v) in env { - if OsStr::from_str("PATH") != &**key { continue } + if OsStr::new("PATH") != &**key { continue } // Split the value and test each path to see if the // program exists. @@ -463,7 +463,7 @@ mod tests { fn test_make_command_line() { fn test_wrapper(prog: &str, args: &[&str]) -> String { String::from_utf16( - &make_command_line(OsStr::from_str(prog), + &make_command_line(OsStr::new(prog), &args.iter() .map(|a| OsString::from(a)) .collect::<Vec<OsString>>())).unwrap() diff --git a/src/libstd/thread/mod.rs b/src/libstd/thread/mod.rs index 4fd0340f09a..c65377e238f 100644 --- a/src/libstd/thread/mod.rs +++ b/src/libstd/thread/mod.rs @@ -497,15 +497,6 @@ pub fn sleep_ms(ms: u32) { imp::sleep(Duration::milliseconds(ms as i64)) } -/// Deprecated: use `sleep_ms` instead. -#[unstable(feature = "thread_sleep", - reason = "recently added, needs an RFC, and `Duration` itself is \ - unstable")] -#[deprecated(since = "1.0.0", reason = "use sleep_ms instead")] -pub fn sleep(dur: Duration) { - imp::sleep(dur) -} - /// Blocks unless or until the current thread's token is made available (may wake spuriously). /// /// See the module doc for more detail. @@ -546,13 +537,6 @@ pub fn park_timeout_ms(ms: u32) { *guard = false; } -/// Deprecated: use `park_timeout_ms` -#[unstable(feature = "std_misc", reason = "recently introduced, depends on Duration")] -#[deprecated(since = "1.0.0", reason = "use park_timeout_ms instead")] -pub fn park_timeout(duration: Duration) { - park_timeout_ms(duration.num_milliseconds() as u32) -} - //////////////////////////////////////////////////////////////////////////////// // Thread //////////////////////////////////////////////////////////////////////////////// diff --git a/src/libstd/time/duration.rs b/src/libstd/time/duration.rs index 9b79b483b28..636a0dd697a 100644 --- a/src/libstd/time/duration.rs +++ b/src/libstd/time/duration.rs @@ -12,13 +12,10 @@ #![unstable(feature = "std_misc")] +use prelude::v1::*; + use {fmt, i64}; -use ops::{Add, Sub, Mul, Div, Neg, FnOnce}; -use option::Option; -use option::Option::{Some, None}; -#[allow(deprecated)] // Int -use num::Int; -use result::Result::Ok; +use ops::{Add, Sub, Mul, Div, Neg}; /// The number of nanoseconds in a microsecond. const NANOS_PER_MICRO: i32 = 1000; diff --git a/src/libsyntax/ast.rs b/src/libsyntax/ast.rs index 26463df1871..399810cb7f5 100644 --- a/src/libsyntax/ast.rs +++ b/src/libsyntax/ast.rs @@ -66,8 +66,6 @@ use parse::lexer; use ptr::P; use std::fmt; -#[allow(deprecated)] -use std::num::Int; use std::rc::Rc; use serialize::{Encodable, Decodable, Encoder, Decoder}; @@ -1142,16 +1140,24 @@ pub enum Sign { } impl Sign { - #[allow(deprecated)] // Int - pub fn new<T:Int>(n: T) -> Sign { - if n < Int::zero() { - Minus - } else { - Plus - } + pub fn new<T: IntSign>(n: T) -> Sign { + n.sign() } } +pub trait IntSign { + fn sign(&self) -> Sign; +} +macro_rules! doit { + ($($t:ident)*) => ($(impl IntSign for $t { + #[allow(unused_comparisons)] + fn sign(&self) -> Sign { + if *self < 0 {Minus} else {Plus} + } + })*) +} +doit! { i8 i16 i32 i64 isize u8 u16 u32 u64 usize } + #[derive(Clone, PartialEq, Eq, RustcEncodable, RustcDecodable, Hash, Debug, Copy)] pub enum LitIntType { SignedIntLit(IntTy, Sign), diff --git a/src/libsyntax/codemap.rs b/src/libsyntax/codemap.rs index a0c29a2371b..34ad192845c 100644 --- a/src/libsyntax/codemap.rs +++ b/src/libsyntax/codemap.rs @@ -20,7 +20,6 @@ pub use self::MacroFormat::*; use std::cell::RefCell; -use std::num::ToPrimitive; use std::ops::{Add, Sub}; use std::rc::Rc; @@ -862,7 +861,11 @@ impl CodeMap { pub fn record_expansion(&self, expn_info: ExpnInfo) -> ExpnId { let mut expansions = self.expansions.borrow_mut(); expansions.push(expn_info); - ExpnId(expansions.len().to_u32().expect("too many ExpnInfo's!") - 1) + let len = expansions.len(); + if len > u32::max_value() as usize { + panic!("too many ExpnInfo's!"); + } + ExpnId(len as u32 - 1) } pub fn with_expn_info<T, F>(&self, id: ExpnId, f: F) -> T where diff --git a/src/libsyntax/parse/mod.rs b/src/libsyntax/parse/mod.rs index 1333e27058f..1a1713a8ba6 100644 --- a/src/libsyntax/parse/mod.rs +++ b/src/libsyntax/parse/mod.rs @@ -22,8 +22,6 @@ use std::cell::{Cell, RefCell}; use std::fs::File; use std::io::Read; use std::iter; -#[allow(deprecated)] // Int -use std::num::Int; use std::path::{Path, PathBuf}; use std::rc::Rc; use std::str; diff --git a/src/libtest/lib.rs b/src/libtest/lib.rs index 4f350b909ca..b68b1d28b35 100644 --- a/src/libtest/lib.rs +++ b/src/libtest/lib.rs @@ -74,7 +74,6 @@ use std::fs::File; use std::io::prelude::*; use std::io; use std::iter::repeat; -use std::num::{Float, Int}; use std::path::PathBuf; use std::sync::mpsc::{channel, Sender}; use std::sync::{Arc, Mutex}; @@ -412,7 +411,7 @@ pub fn parse_opts(args: &[String]) -> Option<OptRes> { #[derive(Clone, PartialEq)] pub struct BenchSamples { - ns_iter_summ: stats::Summary<f64>, + ns_iter_summ: stats::Summary, mb_s: usize, } @@ -1065,7 +1064,7 @@ impl Bencher { } // This is a more statistics-driven benchmark algorithm - pub fn auto_bench<F>(&mut self, mut f: F) -> stats::Summary<f64> where F: FnMut(&mut Bencher) { + pub fn auto_bench<F>(&mut self, mut f: F) -> stats::Summary where F: FnMut(&mut Bencher) { // Initial bench run to get ballpark figure. let mut n = 1; self.bench_n(n, |x| f(x)); diff --git a/src/libtest/stats.rs b/src/libtest/stats.rs index 06e0de76eaf..c1ba1260f67 100644 --- a/src/libtest/stats.rs +++ b/src/libtest/stats.rs @@ -13,9 +13,8 @@ use std::cmp::Ordering::{self, Less, Greater, Equal}; use std::mem; -use std::num::{Float, FromPrimitive}; -fn local_cmp<T:Float>(x: T, y: T) -> Ordering { +fn local_cmp(x: f64, y: f64) -> Ordering { // arbitrarily decide that NaNs are larger than everything. if y.is_nan() { Less @@ -30,12 +29,12 @@ fn local_cmp<T:Float>(x: T, y: T) -> Ordering { } } -fn local_sort<T: Float>(v: &mut [T]) { - v.sort_by(|x: &T, y: &T| local_cmp(*x, *y)); +fn local_sort(v: &mut [f64]) { + v.sort_by(|x: &f64, y: &f64| local_cmp(*x, *y)); } /// Trait that provides simple descriptive statistics on a univariate set of numeric samples. -pub trait Stats <T: Float + FromPrimitive> { +pub trait Stats { /// Sum of the samples. /// @@ -43,24 +42,24 @@ pub trait Stats <T: Float + FromPrimitive> { /// Depends on IEEE-754 arithmetic guarantees. See proof of correctness at: /// ["Adaptive Precision Floating-Point Arithmetic and Fast Robust Geometric Predicates"] /// (http://www.cs.cmu.edu/~quake-papers/robust-arithmetic.ps) - fn sum(&self) -> T; + fn sum(&self) -> f64; /// Minimum value of the samples. - fn min(&self) -> T; + fn min(&self) -> f64; /// Maximum value of the samples. - fn max(&self) -> T; + fn max(&self) -> f64; /// Arithmetic mean (average) of the samples: sum divided by sample-count. /// /// See: https://en.wikipedia.org/wiki/Arithmetic_mean - fn mean(&self) -> T; + fn mean(&self) -> f64; /// Median of the samples: value separating the lower half of the samples from the higher half. /// Equal to `self.percentile(50.0)`. /// /// See: https://en.wikipedia.org/wiki/Median - fn median(&self) -> T; + fn median(&self) -> f64; /// Variance of the samples: bias-corrected mean of the squares of the differences of each /// sample from the sample mean. Note that this calculates the _sample variance_ rather than the @@ -69,7 +68,7 @@ pub trait Stats <T: Float + FromPrimitive> { /// than `n`. /// /// See: https://en.wikipedia.org/wiki/Variance - fn var(&self) -> T; + fn var(&self) -> f64; /// Standard deviation: the square root of the sample variance. /// @@ -77,13 +76,13 @@ pub trait Stats <T: Float + FromPrimitive> { /// `median_abs_dev` for unknown distributions. /// /// See: https://en.wikipedia.org/wiki/Standard_deviation - fn std_dev(&self) -> T; + fn std_dev(&self) -> f64; /// Standard deviation as a percent of the mean value. See `std_dev` and `mean`. /// /// Note: this is not a robust statistic for non-normal distributions. Prefer the /// `median_abs_dev_pct` for unknown distributions. - fn std_dev_pct(&self) -> T; + fn std_dev_pct(&self) -> f64; /// Scaled median of the absolute deviations of each sample from the sample median. This is a /// robust (distribution-agnostic) estimator of sample variability. Use this in preference to @@ -92,10 +91,10 @@ pub trait Stats <T: Float + FromPrimitive> { /// deviation. /// /// See: http://en.wikipedia.org/wiki/Median_absolute_deviation - fn median_abs_dev(&self) -> T; + fn median_abs_dev(&self) -> f64; /// Median absolute deviation as a percent of the median. See `median_abs_dev` and `median`. - fn median_abs_dev_pct(&self) -> T; + fn median_abs_dev_pct(&self) -> f64; /// Percentile: the value below which `pct` percent of the values in `self` fall. For example, /// percentile(95.0) will return the value `v` such that 95% of the samples `s` in `self` @@ -104,7 +103,7 @@ pub trait Stats <T: Float + FromPrimitive> { /// Calculated by linear interpolation between closest ranks. /// /// See: http://en.wikipedia.org/wiki/Percentile - fn percentile(&self, pct: T) -> T; + fn percentile(&self, pct: f64) -> f64; /// Quartiles of the sample: three values that divide the sample into four equal groups, each /// with 1/4 of the data. The middle value is the median. See `median` and `percentile`. This @@ -112,36 +111,36 @@ pub trait Stats <T: Float + FromPrimitive> { /// is otherwise equivalent. /// /// See also: https://en.wikipedia.org/wiki/Quartile - fn quartiles(&self) -> (T,T,T); + fn quartiles(&self) -> (f64,f64,f64); /// Inter-quartile range: the difference between the 25th percentile (1st quartile) and the 75th /// percentile (3rd quartile). See `quartiles`. /// /// See also: https://en.wikipedia.org/wiki/Interquartile_range - fn iqr(&self) -> T; + fn iqr(&self) -> f64; } /// Extracted collection of all the summary statistics of a sample set. #[derive(Clone, PartialEq)] #[allow(missing_docs)] -pub struct Summary<T> { - pub sum: T, - pub min: T, - pub max: T, - pub mean: T, - pub median: T, - pub var: T, - pub std_dev: T, - pub std_dev_pct: T, - pub median_abs_dev: T, - pub median_abs_dev_pct: T, - pub quartiles: (T,T,T), - pub iqr: T, +pub struct Summary { + pub sum: f64, + pub min: f64, + pub max: f64, + pub mean: f64, + pub median: f64, + pub var: f64, + pub std_dev: f64, + pub std_dev_pct: f64, + pub median_abs_dev: f64, + pub median_abs_dev_pct: f64, + pub quartiles: (f64,f64,f64), + pub iqr: f64, } -impl<T: Float + FromPrimitive> Summary<T> { +impl Summary { /// Construct a new summary of a sample set. - pub fn new(samples: &[T]) -> Summary<T> { + pub fn new(samples: &[f64]) -> Summary { Summary { sum: samples.sum(), min: samples.min(), @@ -159,9 +158,9 @@ impl<T: Float + FromPrimitive> Summary<T> { } } -impl<T: Float + FromPrimitive> Stats<T> for [T] { +impl Stats for [f64] { // FIXME #11059 handle NaN, inf and overflow - fn sum(&self) -> T { + fn sum(&self) -> f64 { let mut partials = vec![]; for &x in self { @@ -170,7 +169,7 @@ impl<T: Float + FromPrimitive> Stats<T> for [T] { // This inner loop applies `hi`/`lo` summation to each // partial so that the list of partial sums remains exact. for i in 0..partials.len() { - let mut y: T = partials[i]; + let mut y: f64 = partials[i]; if x.abs() < y.abs() { mem::swap(&mut x, &mut y); } @@ -178,7 +177,7 @@ impl<T: Float + FromPrimitive> Stats<T> for [T] { // `lo`. Together `hi+lo` are exactly equal to `x+y`. let hi = x + y; let lo = y - (hi - x); - if lo != Float::zero() { + if lo != 0.0 { partials[j] = lo; j += 1; } @@ -191,35 +190,35 @@ impl<T: Float + FromPrimitive> Stats<T> for [T] { partials.truncate(j+1); } } - let zero: T = Float::zero(); + let zero: f64 = 0.0; partials.iter().fold(zero, |p, q| p + *q) } - fn min(&self) -> T { + fn min(&self) -> f64 { assert!(!self.is_empty()); self.iter().fold(self[0], |p, q| p.min(*q)) } - fn max(&self) -> T { + fn max(&self) -> f64 { assert!(!self.is_empty()); self.iter().fold(self[0], |p, q| p.max(*q)) } - fn mean(&self) -> T { + fn mean(&self) -> f64 { assert!(!self.is_empty()); - self.sum() / FromPrimitive::from_usize(self.len()).unwrap() + self.sum() / (self.len() as f64) } - fn median(&self) -> T { - self.percentile(FromPrimitive::from_usize(50).unwrap()) + fn median(&self) -> f64 { + self.percentile(50 as f64) } - fn var(&self) -> T { + fn var(&self) -> f64 { if self.len() < 2 { - Float::zero() + 0.0 } else { let mean = self.mean(); - let mut v: T = Float::zero(); + let mut v: f64 = 0.0; for s in self { let x = *s - mean; v = v + x*x; @@ -227,53 +226,53 @@ impl<T: Float + FromPrimitive> Stats<T> for [T] { // NB: this is _supposed to be_ len-1, not len. If you // change it back to len, you will be calculating a // population variance, not a sample variance. - let denom = FromPrimitive::from_usize(self.len()-1).unwrap(); + let denom = (self.len() - 1) as f64; v/denom } } - fn std_dev(&self) -> T { + fn std_dev(&self) -> f64 { self.var().sqrt() } - fn std_dev_pct(&self) -> T { - let hundred = FromPrimitive::from_usize(100).unwrap(); + fn std_dev_pct(&self) -> f64 { + let hundred = 100 as f64; (self.std_dev() / self.mean()) * hundred } - fn median_abs_dev(&self) -> T { + fn median_abs_dev(&self) -> f64 { let med = self.median(); - let abs_devs: Vec<T> = self.iter().map(|&v| (med - v).abs()).collect(); + let abs_devs: Vec<f64> = self.iter().map(|&v| (med - v).abs()).collect(); // This constant is derived by smarter statistics brains than me, but it is // consistent with how R and other packages treat the MAD. - let number = FromPrimitive::from_f64(1.4826).unwrap(); + let number = 1.4826; abs_devs.median() * number } - fn median_abs_dev_pct(&self) -> T { - let hundred = FromPrimitive::from_usize(100).unwrap(); + fn median_abs_dev_pct(&self) -> f64 { + let hundred = 100 as f64; (self.median_abs_dev() / self.median()) * hundred } - fn percentile(&self, pct: T) -> T { + fn percentile(&self, pct: f64) -> f64 { let mut tmp = self.to_vec(); local_sort(&mut tmp); percentile_of_sorted(&tmp, pct) } - fn quartiles(&self) -> (T,T,T) { + fn quartiles(&self) -> (f64,f64,f64) { let mut tmp = self.to_vec(); local_sort(&mut tmp); - let first = FromPrimitive::from_usize(25).unwrap(); + let first = 25f64; let a = percentile_of_sorted(&tmp, first); - let secound = FromPrimitive::from_usize(50).unwrap(); + let secound = 50f64; let b = percentile_of_sorted(&tmp, secound); - let third = FromPrimitive::from_usize(75).unwrap(); + let third = 75f64; let c = percentile_of_sorted(&tmp, third); (a,b,c) } - fn iqr(&self) -> T { + fn iqr(&self) -> f64 { let (a,_,c) = self.quartiles(); c - a } @@ -282,41 +281,41 @@ impl<T: Float + FromPrimitive> Stats<T> for [T] { // Helper function: extract a value representing the `pct` percentile of a sorted sample-set, using // linear interpolation. If samples are not sorted, return nonsensical value. -fn percentile_of_sorted<T: Float + FromPrimitive>(sorted_samples: &[T], - pct: T) -> T { +fn percentile_of_sorted(sorted_samples: &[f64], pct: f64) -> f64 { assert!(!sorted_samples.is_empty()); if sorted_samples.len() == 1 { return sorted_samples[0]; } - let zero: T = Float::zero(); + let zero: f64 = 0.0; assert!(zero <= pct); - let hundred = FromPrimitive::from_usize(100).unwrap(); + let hundred = 100f64; assert!(pct <= hundred); if pct == hundred { return sorted_samples[sorted_samples.len() - 1]; } - let length = FromPrimitive::from_usize(sorted_samples.len() - 1).unwrap(); + let length = (sorted_samples.len() - 1) as f64; let rank = (pct / hundred) * length; let lrank = rank.floor(); let d = rank - lrank; - let n = lrank.to_usize().unwrap(); + let n = lrank as usize; let lo = sorted_samples[n]; let hi = sorted_samples[n+1]; lo + (hi - lo) * d } -/// Winsorize a set of samples, replacing values above the `100-pct` percentile and below the `pct` -/// percentile with those percentiles themselves. This is a way of minimizing the effect of -/// outliers, at the cost of biasing the sample. It differs from trimming in that it does not -/// change the number of samples, just changes the values of those that are outliers. +/// Winsorize a set of samples, replacing values above the `100-pct` percentile +/// and below the `pct` percentile with those percentiles themselves. This is a +/// way of minimizing the effect of outliers, at the cost of biasing the sample. +/// It differs from trimming in that it does not change the number of samples, +/// just changes the values of those that are outliers. /// /// See: http://en.wikipedia.org/wiki/Winsorising -pub fn winsorize<T: Float + FromPrimitive>(samples: &mut [T], pct: T) { +pub fn winsorize(samples: &mut [f64], pct: f64) { let mut tmp = samples.to_vec(); local_sort(&mut tmp); let lo = percentile_of_sorted(&tmp, pct); - let hundred: T = FromPrimitive::from_usize(100).unwrap(); + let hundred = 100 as f64; let hi = percentile_of_sorted(&tmp, hundred-pct); for samp in samples { if *samp > hi { @@ -339,14 +338,13 @@ mod tests { macro_rules! assert_approx_eq { ($a:expr, $b:expr) => ({ - use std::num::Float; let (a, b) = (&$a, &$b); assert!((*a - *b).abs() < 1.0e-6, "{} is not approximately equal to {}", *a, *b); }) } - fn check(samples: &[f64], summ: &Summary<f64>) { + fn check(samples: &[f64], summ: &Summary) { let summ2 = Summary::new(samples); diff --git a/src/test/auxiliary/issue_3907.rs b/src/test/auxiliary/issue_3907.rs index 3d5e52d709d..6472c08c222 100644 --- a/src/test/auxiliary/issue_3907.rs +++ b/src/test/auxiliary/issue_3907.rs @@ -8,10 +8,6 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. -#![feature(core)] - -use std::marker::MarkerTrait; - -pub trait Foo : MarkerTrait { +pub trait Foo { fn bar(); } diff --git a/src/test/auxiliary/private_trait_xc.rs b/src/test/auxiliary/private_trait_xc.rs index dc08033602c..37ee10c8d37 100644 --- a/src/test/auxiliary/private_trait_xc.rs +++ b/src/test/auxiliary/private_trait_xc.rs @@ -8,6 +8,4 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. -#![feature(core)] - -trait Foo : ::std::marker::MarkerTrait {} +trait Foo {} diff --git a/src/test/auxiliary/rustdoc-default-impl.rs b/src/test/auxiliary/rustdoc-default-impl.rs index 8f11629be6c..c2ff7a0054f 100644 --- a/src/test/auxiliary/rustdoc-default-impl.rs +++ b/src/test/auxiliary/rustdoc-default-impl.rs @@ -14,7 +14,7 @@ pub mod bar { use std::marker; - pub trait Bar: marker::MarkerTrait + 'static {} + pub trait Bar: 'static {} impl Bar for .. {} diff --git a/src/test/auxiliary/svh-a-base.rs b/src/test/auxiliary/svh-a-base.rs index 7e10d2158ed..31a97f695f0 100644 --- a/src/test/auxiliary/svh-a-base.rs +++ b/src/test/auxiliary/svh-a-base.rs @@ -14,16 +14,13 @@ //! (#14132). #![crate_name = "a"] -#![feature(core)] - -use std::marker::MarkerTrait; macro_rules! three { () => { 3 } } -pub trait U : MarkerTrait {} -pub trait V : MarkerTrait {} +pub trait U {} +pub trait V {} impl U for () {} impl V for () {} diff --git a/src/test/auxiliary/svh-a-change-lit.rs b/src/test/auxiliary/svh-a-change-lit.rs index c5f38805511..5339fc8295c 100644 --- a/src/test/auxiliary/svh-a-change-lit.rs +++ b/src/test/auxiliary/svh-a-change-lit.rs @@ -14,16 +14,13 @@ //! (#14132). #![crate_name = "a"] -#![feature(core)] - -use std::marker::MarkerTrait; macro_rules! three { () => { 3 } } -pub trait U : MarkerTrait {} -pub trait V : MarkerTrait {} +pub trait U {} +pub trait V {} impl U for () {} impl V for () {} diff --git a/src/test/auxiliary/svh-a-change-significant-cfg.rs b/src/test/auxiliary/svh-a-change-significant-cfg.rs index 3168e747eb6..2a5d9446f87 100644 --- a/src/test/auxiliary/svh-a-change-significant-cfg.rs +++ b/src/test/auxiliary/svh-a-change-significant-cfg.rs @@ -14,16 +14,13 @@ //! (#14132). #![crate_name = "a"] -#![feature(core)] - -use std::marker::MarkerTrait; macro_rules! three { () => { 3 } } -pub trait U : MarkerTrait {} -pub trait V : MarkerTrait {} +pub trait U {} +pub trait V {} impl U for () {} impl V for () {} diff --git a/src/test/auxiliary/svh-a-change-trait-bound.rs b/src/test/auxiliary/svh-a-change-trait-bound.rs index f86a43494f7..61f2f2803ab 100644 --- a/src/test/auxiliary/svh-a-change-trait-bound.rs +++ b/src/test/auxiliary/svh-a-change-trait-bound.rs @@ -14,16 +14,13 @@ //! (#14132). #![crate_name = "a"] -#![feature(core)] - -use std::marker::MarkerTrait; macro_rules! three { () => { 3 } } -pub trait U : MarkerTrait {} -pub trait V : MarkerTrait {} +pub trait U {} +pub trait V {} impl U for () {} impl V for () {} diff --git a/src/test/auxiliary/svh-a-change-type-arg.rs b/src/test/auxiliary/svh-a-change-type-arg.rs index dc412b70044..270ce95be2b 100644 --- a/src/test/auxiliary/svh-a-change-type-arg.rs +++ b/src/test/auxiliary/svh-a-change-type-arg.rs @@ -14,16 +14,13 @@ //! (#14132). #![crate_name = "a"] -#![feature(core)] - -use std::marker::MarkerTrait; macro_rules! three { () => { 3 } } -pub trait U : MarkerTrait {} -pub trait V : MarkerTrait {} +pub trait U {} +pub trait V {} impl U for () {} impl V for () {} diff --git a/src/test/auxiliary/svh-a-change-type-ret.rs b/src/test/auxiliary/svh-a-change-type-ret.rs index 0cfcbbb0554..de4cc85a7dc 100644 --- a/src/test/auxiliary/svh-a-change-type-ret.rs +++ b/src/test/auxiliary/svh-a-change-type-ret.rs @@ -14,16 +14,13 @@ //! (#14132). #![crate_name = "a"] -#![feature(core)] - -use std::marker::MarkerTrait; macro_rules! three { () => { 3 } } -pub trait U : MarkerTrait {} -pub trait V : MarkerTrait {} +pub trait U {} +pub trait V {} impl U for () {} impl V for () {} diff --git a/src/test/auxiliary/svh-a-change-type-static.rs b/src/test/auxiliary/svh-a-change-type-static.rs index e1e32095b5c..62f7986f1c3 100644 --- a/src/test/auxiliary/svh-a-change-type-static.rs +++ b/src/test/auxiliary/svh-a-change-type-static.rs @@ -16,14 +16,12 @@ #![crate_name = "a"] #![feature(core)] -use std::marker::MarkerTrait; - macro_rules! three { () => { 3 } } -pub trait U : MarkerTrait {} -pub trait V : MarkerTrait {} +pub trait U {} +pub trait V {} impl U for () {} impl V for () {} diff --git a/src/test/auxiliary/svh-a-comment.rs b/src/test/auxiliary/svh-a-comment.rs index 9fd97376b66..22e40822eec 100644 --- a/src/test/auxiliary/svh-a-comment.rs +++ b/src/test/auxiliary/svh-a-comment.rs @@ -14,16 +14,13 @@ //! (#14132). #![crate_name = "a"] -#![feature(core)] - -use std::marker::MarkerTrait; macro_rules! three { () => { 3 } } -pub trait U : MarkerTrait {} -pub trait V : MarkerTrait {} +pub trait U {} +pub trait V {} impl U for () {} impl V for () {} diff --git a/src/test/auxiliary/svh-a-doc.rs b/src/test/auxiliary/svh-a-doc.rs index e64bde096b0..3d8a728967a 100644 --- a/src/test/auxiliary/svh-a-doc.rs +++ b/src/test/auxiliary/svh-a-doc.rs @@ -14,16 +14,13 @@ //! (#14132). #![crate_name = "a"] -#![feature(core)] - -use std::marker::MarkerTrait; macro_rules! three { () => { 3 } } -pub trait U : MarkerTrait {} -pub trait V : MarkerTrait {} +pub trait U {} +pub trait V {} impl U for () {} impl V for () {} diff --git a/src/test/auxiliary/svh-a-macro.rs b/src/test/auxiliary/svh-a-macro.rs index b16338f1e12..41d7eb7b186 100644 --- a/src/test/auxiliary/svh-a-macro.rs +++ b/src/test/auxiliary/svh-a-macro.rs @@ -14,16 +14,13 @@ //! (#14132). #![crate_name = "a"] -#![feature(core)] - -use std::marker::MarkerTrait; macro_rules! three { () => { 3 } } -pub trait U : MarkerTrait {} -pub trait V : MarkerTrait {} +pub trait U {} +pub trait V {} impl U for () {} impl V for () {} diff --git a/src/test/auxiliary/svh-a-no-change.rs b/src/test/auxiliary/svh-a-no-change.rs index 7e10d2158ed..31a97f695f0 100644 --- a/src/test/auxiliary/svh-a-no-change.rs +++ b/src/test/auxiliary/svh-a-no-change.rs @@ -14,16 +14,13 @@ //! (#14132). #![crate_name = "a"] -#![feature(core)] - -use std::marker::MarkerTrait; macro_rules! three { () => { 3 } } -pub trait U : MarkerTrait {} -pub trait V : MarkerTrait {} +pub trait U {} +pub trait V {} impl U for () {} impl V for () {} diff --git a/src/test/auxiliary/svh-a-redundant-cfg.rs b/src/test/auxiliary/svh-a-redundant-cfg.rs index 8cadd7bdf41..e405c337abe 100644 --- a/src/test/auxiliary/svh-a-redundant-cfg.rs +++ b/src/test/auxiliary/svh-a-redundant-cfg.rs @@ -14,16 +14,13 @@ //! (#14132). #![crate_name = "a"] -#![feature(core)] - -use std::marker::MarkerTrait; macro_rules! three { () => { 3 } } -pub trait U : MarkerTrait {} -pub trait V : MarkerTrait {} +pub trait U {} +pub trait V {} impl U for () {} impl V for () {} diff --git a/src/test/auxiliary/svh-a-whitespace.rs b/src/test/auxiliary/svh-a-whitespace.rs index fcaf7790955..9ef788c9842 100644 --- a/src/test/auxiliary/svh-a-whitespace.rs +++ b/src/test/auxiliary/svh-a-whitespace.rs @@ -14,16 +14,13 @@ //! (#14132). #![crate_name = "a"] -#![feature(core)] - -use std::marker::MarkerTrait; macro_rules! three { () => { 3 } } -pub trait U : MarkerTrait {} -pub trait V : MarkerTrait {} +pub trait U {} +pub trait V {} impl U for () {} impl V for () {} diff --git a/src/test/auxiliary/trait_impl_conflict.rs b/src/test/auxiliary/trait_impl_conflict.rs index 0adedfd4eeb..c3ecbb014dc 100644 --- a/src/test/auxiliary/trait_impl_conflict.rs +++ b/src/test/auxiliary/trait_impl_conflict.rs @@ -8,9 +8,7 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. -#![feature(core)] - -pub trait Foo : ::std::marker::MarkerTrait { +pub trait Foo { } impl Foo for isize { diff --git a/src/test/auxiliary/typeck_default_trait_impl_cross_crate_coherence_lib.rs b/src/test/auxiliary/typeck_default_trait_impl_cross_crate_coherence_lib.rs index 5a7a3e7bcc6..2e425ac96c5 100644 --- a/src/test/auxiliary/typeck_default_trait_impl_cross_crate_coherence_lib.rs +++ b/src/test/auxiliary/typeck_default_trait_impl_cross_crate_coherence_lib.rs @@ -11,9 +11,7 @@ #![feature(optin_builtin_traits, core)] #![crate_type = "rlib"] -use std::marker::MarkerTrait; - -pub trait DefaultedTrait : MarkerTrait { } +pub trait DefaultedTrait { } impl DefaultedTrait for .. { } pub struct Something<T> { t: T } diff --git a/src/test/bench/noise.rs b/src/test/bench/noise.rs index 530c499f5fd..efbb5dfb549 100644 --- a/src/test/bench/noise.rs +++ b/src/test/bench/noise.rs @@ -14,7 +14,6 @@ #![feature(rand, core)] use std::f32::consts::PI; -use std::num::Float; use std::__rand::{Rng, thread_rng}; #[derive(Copy, Clone)] diff --git a/src/test/bench/shootout-binarytrees.rs b/src/test/bench/shootout-binarytrees.rs index 61fe6593dc3..c576eea3602 100644 --- a/src/test/bench/shootout-binarytrees.rs +++ b/src/test/bench/shootout-binarytrees.rs @@ -109,8 +109,7 @@ fn main() { let long_lived_tree = bottom_up_tree(&long_lived_arena, 0, max_depth); let messages = (min_depth..max_depth + 1).step_by(2).map(|depth| { - use std::num::Int; - let iterations = 2.pow((max_depth - depth + min_depth) as u32); + let iterations = 2i32.pow((max_depth - depth + min_depth) as u32); thread::spawn(move || inner(depth, iterations)) }).collect::<Vec<_>>(); diff --git a/src/test/bench/shootout-fasta.rs b/src/test/bench/shootout-fasta.rs index 0474cfb6fc8..accf525b4e6 100644 --- a/src/test/bench/shootout-fasta.rs +++ b/src/test/bench/shootout-fasta.rs @@ -43,7 +43,6 @@ use std::env; use std::fs::File; use std::io::{self, BufWriter}; use std::io::prelude::*; -use std::num::Float; const LINE_LENGTH: usize = 60; const IM: u32 = 139968; diff --git a/src/test/bench/shootout-nbody.rs b/src/test/bench/shootout-nbody.rs index de7fb737958..368dbbb931c 100644 --- a/src/test/bench/shootout-nbody.rs +++ b/src/test/bench/shootout-nbody.rs @@ -38,9 +38,7 @@ // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED // OF THE POSSIBILITY OF SUCH DAMAGE. -#![feature(core)] - -use std::num::Float; +use std::mem; const PI: f64 = 3.141592653589793; const SOLAR_MASS: f64 = 4.0 * PI * PI; @@ -193,16 +191,9 @@ fn main() { /// longer contain the mutable reference. This is a safe operation because the /// two mutable borrows are entirely disjoint. fn shift_mut_ref<'a, T>(r: &mut &'a mut [T]) -> Option<&'a mut T> { - use std::mem; - use std::raw::Repr; - - if r.is_empty() { return None } - unsafe { - let mut raw = r.repr(); - let ret = raw.data as *mut T; - raw.data = raw.data.offset(1); - raw.len -= 1; - *r = mem::transmute(raw); - Some({ &mut *ret }) - } + let res = mem::replace(r, &mut []); + if res.is_empty() { return None } + let (a, b) = res.split_at_mut(1); + *r = b; + Some(&mut a[0]) } diff --git a/src/test/bench/shootout-spectralnorm.rs b/src/test/bench/shootout-spectralnorm.rs index b0e8c395673..0fa22abde3c 100644 --- a/src/test/bench/shootout-spectralnorm.rs +++ b/src/test/bench/shootout-spectralnorm.rs @@ -46,7 +46,6 @@ use std::iter::repeat; use std::thread; use std::mem; -use std::num::Float; use std::os; use std::env; use std::raw::Repr; diff --git a/src/test/bench/sudoku.rs b/src/test/bench/sudoku.rs index 3913de3a3f9..16742f0a6e1 100644 --- a/src/test/bench/sudoku.rs +++ b/src/test/bench/sudoku.rs @@ -16,7 +16,6 @@ use std::io::prelude::*; use std::io; use std::iter::repeat; -use std::num::Int; use std::env; // Computes a single solution to a given 9x9 sudoku diff --git a/src/test/compile-fail/associated-types-eq-expr-path.rs b/src/test/compile-fail/associated-types-eq-expr-path.rs index 0d68b960f31..1f9dfdb1847 100644 --- a/src/test/compile-fail/associated-types-eq-expr-path.rs +++ b/src/test/compile-fail/associated-types-eq-expr-path.rs @@ -10,7 +10,7 @@ // Check that an associated type cannot be bound in an expression path. -trait Foo : ::std::marker::MarkerTrait { +trait Foo { type A; fn bar() -> isize; } diff --git a/src/test/compile-fail/associated-types-issue-17359.rs b/src/test/compile-fail/associated-types-issue-17359.rs index 5c36e3356a5..82258f124d3 100644 --- a/src/test/compile-fail/associated-types-issue-17359.rs +++ b/src/test/compile-fail/associated-types-issue-17359.rs @@ -11,7 +11,7 @@ // Test that we do not ICE when an impl is missing an associated type (and that we report // a useful error, of course). -trait Trait : ::std::marker::MarkerTrait { +trait Trait { type Type; } diff --git a/src/test/compile-fail/associated-types-multiple-types-one-trait.rs b/src/test/compile-fail/associated-types-multiple-types-one-trait.rs index 5632f148da6..9436f825de8 100644 --- a/src/test/compile-fail/associated-types-multiple-types-one-trait.rs +++ b/src/test/compile-fail/associated-types-multiple-types-one-trait.rs @@ -8,7 +8,7 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. -trait Foo : ::std::marker::MarkerTrait { +trait Foo { type X; type Y; } diff --git a/src/test/compile-fail/associated-types-no-suitable-supertrait-2.rs b/src/test/compile-fail/associated-types-no-suitable-supertrait-2.rs index 5f1cd2444d3..bda16c8a85d 100644 --- a/src/test/compile-fail/associated-types-no-suitable-supertrait-2.rs +++ b/src/test/compile-fail/associated-types-no-suitable-supertrait-2.rs @@ -19,7 +19,7 @@ // which checks that the trait interface itself is not considered an // error as long as all impls satisfy the constraint. -trait Get : ::std::marker::MarkerTrait { +trait Get { type Value; } diff --git a/src/test/compile-fail/associated-types-no-suitable-supertrait.rs b/src/test/compile-fail/associated-types-no-suitable-supertrait.rs index 24429a48205..233532a6085 100644 --- a/src/test/compile-fail/associated-types-no-suitable-supertrait.rs +++ b/src/test/compile-fail/associated-types-no-suitable-supertrait.rs @@ -19,7 +19,7 @@ // which checks that the trait interface itself is not considered an // error as long as all impls satisfy the constraint. -trait Get : ::std::marker::MarkerTrait { +trait Get { type Value; } diff --git a/src/test/compile-fail/associated-types-unconstrained.rs b/src/test/compile-fail/associated-types-unconstrained.rs index 8832028f9ab..aecbf217a5b 100644 --- a/src/test/compile-fail/associated-types-unconstrained.rs +++ b/src/test/compile-fail/associated-types-unconstrained.rs @@ -10,7 +10,7 @@ // Check that an associated type cannot be bound in an expression path. -trait Foo : ::std::marker::MarkerTrait { +trait Foo { type A; fn bar() -> isize; } diff --git a/src/test/compile-fail/bad-sized.rs b/src/test/compile-fail/bad-sized.rs index 5878e9a9f64..fca74e457c2 100644 --- a/src/test/compile-fail/bad-sized.rs +++ b/src/test/compile-fail/bad-sized.rs @@ -10,7 +10,7 @@ use std::cell::RefCell; -trait Trait : ::std::marker::MarkerTrait {} +trait Trait {} pub fn main() { let x: Vec<Trait + Sized> = Vec::new(); diff --git a/src/test/compile-fail/coherence-blanket-conflicts-with-blanket-implemented.rs b/src/test/compile-fail/coherence-blanket-conflicts-with-blanket-implemented.rs index 98a9c713e84..b771b959d3e 100644 --- a/src/test/compile-fail/coherence-blanket-conflicts-with-blanket-implemented.rs +++ b/src/test/compile-fail/coherence-blanket-conflicts-with-blanket-implemented.rs @@ -10,7 +10,6 @@ use std::fmt::Debug; use std::default::Default; -use std::marker::MarkerTrait; // Test that two blanket impls conflict (at least without negative // bounds). After all, some other crate could implement Even or Odd @@ -20,9 +19,9 @@ trait MyTrait { fn get(&self) -> usize; } -trait Even : MarkerTrait { } +trait Even { } -trait Odd : MarkerTrait { } +trait Odd { } impl Even for isize { } diff --git a/src/test/compile-fail/coherence-blanket-conflicts-with-blanket-unimplemented.rs b/src/test/compile-fail/coherence-blanket-conflicts-with-blanket-unimplemented.rs index 57d25a3bf58..d3b0e7f10b9 100644 --- a/src/test/compile-fail/coherence-blanket-conflicts-with-blanket-unimplemented.rs +++ b/src/test/compile-fail/coherence-blanket-conflicts-with-blanket-unimplemented.rs @@ -19,9 +19,9 @@ trait MyTrait { fn get(&self) -> usize; } -trait Even : ::std::marker::MarkerTrait { } +trait Even {} -trait Odd : ::std::marker::MarkerTrait { } +trait Odd {} impl<T:Even> MyTrait for T { //~ ERROR E0119 fn get(&self) -> usize { 0 } diff --git a/src/test/compile-fail/coherence-conflicting-negative-trait-impl.rs b/src/test/compile-fail/coherence-conflicting-negative-trait-impl.rs index a225f6cf473..55c9ba2a0e8 100644 --- a/src/test/compile-fail/coherence-conflicting-negative-trait-impl.rs +++ b/src/test/compile-fail/coherence-conflicting-negative-trait-impl.rs @@ -10,7 +10,7 @@ #![feature(optin_builtin_traits)] -trait MyTrait : ::std::marker::MarkerTrait {} +trait MyTrait {} struct TestType<T>(::std::marker::PhantomData<T>); diff --git a/src/test/compile-fail/coherence-default-trait-impl.rs b/src/test/compile-fail/coherence-default-trait-impl.rs index 062a4a43b69..cccc8b05b30 100644 --- a/src/test/compile-fail/coherence-default-trait-impl.rs +++ b/src/test/compile-fail/coherence-default-trait-impl.rs @@ -10,21 +10,19 @@ #![feature(optin_builtin_traits)] -use std::marker::MarkerTrait; - -trait MyTrait: MarkerTrait {} +trait MyTrait {} impl MyTrait for .. {} impl MyTrait for .. {} //~^ ERROR conflicting implementations for trait `MyTrait` -trait MySafeTrait: MarkerTrait {} +trait MySafeTrait {} unsafe impl MySafeTrait for .. {} //~^ ERROR implementing the trait `MySafeTrait` is not unsafe -unsafe trait MyUnsafeTrait: MarkerTrait {} +unsafe trait MyUnsafeTrait {} impl MyUnsafeTrait for .. {} //~^ ERROR the trait `MyUnsafeTrait` requires an `unsafe impl` declaration diff --git a/src/test/compile-fail/coherence_copy_like_err_fundamental_struct_tuple.rs b/src/test/compile-fail/coherence_copy_like_err_fundamental_struct_tuple.rs index c4e95e77235..a6b62d17bc4 100644 --- a/src/test/compile-fail/coherence_copy_like_err_fundamental_struct_tuple.rs +++ b/src/test/compile-fail/coherence_copy_like_err_fundamental_struct_tuple.rs @@ -17,11 +17,9 @@ extern crate coherence_copy_like_lib as lib; -use std::marker::MarkerTrait; - struct MyType { x: i32 } -trait MyTrait : MarkerTrait { } +trait MyTrait { } impl<T: lib::MyCopy> MyTrait for T { } //~ ERROR E0119 diff --git a/src/test/compile-fail/coherence_copy_like_err_struct.rs b/src/test/compile-fail/coherence_copy_like_err_struct.rs index f768a475ee8..5a9f440f8bb 100644 --- a/src/test/compile-fail/coherence_copy_like_err_struct.rs +++ b/src/test/compile-fail/coherence_copy_like_err_struct.rs @@ -15,11 +15,9 @@ extern crate coherence_copy_like_lib as lib; -use std::marker::MarkerTrait; - struct MyType { x: i32 } -trait MyTrait : MarkerTrait { } +trait MyTrait { } impl<T: lib::MyCopy> MyTrait for T { } //~ ERROR E0119 // `MyStruct` is not declared fundamental, therefore this would diff --git a/src/test/compile-fail/coherence_copy_like_err_tuple.rs b/src/test/compile-fail/coherence_copy_like_err_tuple.rs index 0c78fffd2df..ee0d5550fd6 100644 --- a/src/test/compile-fail/coherence_copy_like_err_tuple.rs +++ b/src/test/compile-fail/coherence_copy_like_err_tuple.rs @@ -15,11 +15,9 @@ extern crate coherence_copy_like_lib as lib; -use std::marker::MarkerTrait; - struct MyType { x: i32 } -trait MyTrait : MarkerTrait { } +trait MyTrait { } impl<T: lib::MyCopy> MyTrait for T { } //~ ERROR E0119 // Tuples are not fundamental, therefore this would require that diff --git a/src/test/compile-fail/dst-bad-coerce2.rs b/src/test/compile-fail/dst-bad-coerce2.rs index aa687266acb..160197368d6 100644 --- a/src/test/compile-fail/dst-bad-coerce2.rs +++ b/src/test/compile-fail/dst-bad-coerce2.rs @@ -15,7 +15,7 @@ struct Fat<T: ?Sized> { } struct Foo; -trait Bar : ::std::marker::MarkerTrait {} +trait Bar {} impl Bar for Foo {} pub fn main() { diff --git a/src/test/compile-fail/dst-bad-coercions.rs b/src/test/compile-fail/dst-bad-coercions.rs index 8ec1034bc4d..b30eada162b 100644 --- a/src/test/compile-fail/dst-bad-coercions.rs +++ b/src/test/compile-fail/dst-bad-coercions.rs @@ -10,10 +10,8 @@ // Test implicit coercions involving DSTs and raw pointers. -use std::marker::MarkerTrait; - struct S; -trait T : MarkerTrait {} +trait T {} impl T for S {} struct Foo<T: ?Sized> { diff --git a/src/test/compile-fail/implicit-method-bind.rs b/src/test/compile-fail/implicit-method-bind.rs index 6a9c3048052..e116966670d 100644 --- a/src/test/compile-fail/implicit-method-bind.rs +++ b/src/test/compile-fail/implicit-method-bind.rs @@ -8,8 +8,6 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. -use std::num::SignedInt; - fn main() { - let _f = 10.abs; //~ ERROR attempted to take value of method + let _f = 10i32.abs; //~ ERROR attempted to take value of method } diff --git a/src/test/compile-fail/issue-13853.rs b/src/test/compile-fail/issue-13853.rs index cd3f337c4ab..251da2c6b3e 100644 --- a/src/test/compile-fail/issue-13853.rs +++ b/src/test/compile-fail/issue-13853.rs @@ -8,9 +8,7 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. -use std::marker::MarkerTrait; - -trait Node : MarkerTrait { +trait Node { fn zomg(); } diff --git a/src/test/compile-fail/issue-14853.rs b/src/test/compile-fail/issue-14853.rs index 0b846651acf..51deb99a4f2 100644 --- a/src/test/compile-fail/issue-14853.rs +++ b/src/test/compile-fail/issue-14853.rs @@ -9,9 +9,8 @@ // except according to those terms. use std::fmt::Debug; -use std::marker::MarkerTrait; -trait Str : MarkerTrait {} +trait Str {} trait Something { fn yay<T: Debug>(_: Option<Self>, thing: &[T]); diff --git a/src/test/compile-fail/issue-16747.rs b/src/test/compile-fail/issue-16747.rs index b4abef0bd28..a3529c9ea90 100644 --- a/src/test/compile-fail/issue-16747.rs +++ b/src/test/compile-fail/issue-16747.rs @@ -8,9 +8,7 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. -use std::marker::MarkerTrait; - -trait ListItem<'a> : MarkerTrait { +trait ListItem<'a> { fn list_name() -> &'a str; } diff --git a/src/test/compile-fail/issue-18107.rs b/src/test/compile-fail/issue-18107.rs index 60ab616d598..6300a1dc15d 100644 --- a/src/test/compile-fail/issue-18107.rs +++ b/src/test/compile-fail/issue-18107.rs @@ -8,9 +8,7 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. -use std::marker::MarkerTrait; - -pub trait AbstractRenderer : MarkerTrait {} +pub trait AbstractRenderer {} fn _create_render(_: &()) -> AbstractRenderer diff --git a/src/test/compile-fail/issue-18389.rs b/src/test/compile-fail/issue-18389.rs index 271c31bd375..41be78dd7b9 100644 --- a/src/test/compile-fail/issue-18389.rs +++ b/src/test/compile-fail/issue-18389.rs @@ -8,14 +8,11 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. -#![feature(unboxed_closures)] - use std::any::Any; use std::any::TypeId; -use std::marker::MarkerTrait; -pub trait Pt : MarkerTrait {} -pub trait Rt : MarkerTrait {} +pub trait Pt {} +pub trait Rt {} trait Private<P: Pt, R: Rt> { fn call(&self, p: P, r: R); diff --git a/src/test/compile-fail/issue-18611.rs b/src/test/compile-fail/issue-18611.rs index e81a576fa63..a662e9ca98e 100644 --- a/src/test/compile-fail/issue-18611.rs +++ b/src/test/compile-fail/issue-18611.rs @@ -8,13 +8,11 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. -use std::marker::MarkerTrait; - fn add_state(op: <isize as HasState>::State) { //~^ ERROR the trait `HasState` is not implemented for the type `isize` } -trait HasState : MarkerTrait { +trait HasState { type State; } diff --git a/src/test/compile-fail/issue-18819.rs b/src/test/compile-fail/issue-18819.rs index 01fc4fef03b..d89b2c6ce8c 100644 --- a/src/test/compile-fail/issue-18819.rs +++ b/src/test/compile-fail/issue-18819.rs @@ -8,9 +8,7 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. -use std::marker::MarkerTrait; - -trait Foo : MarkerTrait { +trait Foo { type Item; } diff --git a/src/test/compile-fail/issue-2063.rs b/src/test/compile-fail/issue-2063.rs index 9e63cc203f4..20bd8af7c3e 100644 --- a/src/test/compile-fail/issue-2063.rs +++ b/src/test/compile-fail/issue-2063.rs @@ -12,11 +12,9 @@ // cause compiler to loop. Note that no instances // of such a type could ever be constructed. -use std::marker::MarkerTrait; - struct t(Box<t>); //~ ERROR this type cannot be instantiated -trait to_str_2 : MarkerTrait { +trait to_str_2 { fn my_to_string() -> String; } diff --git a/src/test/compile-fail/issue-20831-debruijn.rs b/src/test/compile-fail/issue-20831-debruijn.rs index 5b623ac377b..a38278eae24 100644 --- a/src/test/compile-fail/issue-20831-debruijn.rs +++ b/src/test/compile-fail/issue-20831-debruijn.rs @@ -14,10 +14,9 @@ // away. use std::cell::RefCell; -use std::marker::MarkerTrait; use std::ops::{Shl, Shr}; -pub trait Subscriber : MarkerTrait { +pub trait Subscriber { type Input; } diff --git a/src/test/compile-fail/issue-23080-2.rs b/src/test/compile-fail/issue-23080-2.rs index ff5ac9de8d9..b77230a8b34 100644 --- a/src/test/compile-fail/issue-23080-2.rs +++ b/src/test/compile-fail/issue-23080-2.rs @@ -12,9 +12,7 @@ #![feature(optin_builtin_traits)] -use std::marker::MarkerTrait; - -unsafe trait Trait: MarkerTrait { +unsafe trait Trait { //~^ error: traits with default impls (`e.g. unsafe impl Trait for ..`) must have no methods or associated items type Output; } diff --git a/src/test/compile-fail/issue-3702-2.rs b/src/test/compile-fail/issue-3702-2.rs index 2b732899ea4..026ee89c0b2 100644 --- a/src/test/compile-fail/issue-3702-2.rs +++ b/src/test/compile-fail/issue-3702-2.rs @@ -8,7 +8,12 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. -use std::num::ToPrimitive; +pub trait ToPrimitive { + fn to_int(&self) -> isize { 0 } +} + +impl ToPrimitive for i32 {} +impl ToPrimitive for isize {} trait Add { fn to_int(&self) -> isize; diff --git a/src/test/compile-fail/issue-5035-2.rs b/src/test/compile-fail/issue-5035-2.rs index d316b44794a..9e324cdd61e 100644 --- a/src/test/compile-fail/issue-5035-2.rs +++ b/src/test/compile-fail/issue-5035-2.rs @@ -8,9 +8,7 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. -use std::marker::MarkerTrait; - -trait I : MarkerTrait {} +trait I {} type K = I+'static; fn foo(_x: K) {} //~ ERROR: the trait `core::marker::Sized` is not implemented diff --git a/src/test/compile-fail/issue-5883.rs b/src/test/compile-fail/issue-5883.rs index b0db9906195..9ff957b6e6d 100644 --- a/src/test/compile-fail/issue-5883.rs +++ b/src/test/compile-fail/issue-5883.rs @@ -8,9 +8,7 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. -use std::marker::MarkerTrait; - -trait A : MarkerTrait {} +trait A {} struct Struct { r: A+'static @@ -22,6 +20,6 @@ fn new_struct(r: A+'static) Struct { r: r } } -trait Curve : MarkerTrait {} +trait Curve {} enum E {X(Curve+'static)} fn main() {} diff --git a/src/test/compile-fail/issue-7575.rs b/src/test/compile-fail/issue-7575.rs index 9c019f6ec47..6b320f400a8 100644 --- a/src/test/compile-fail/issue-7575.rs +++ b/src/test/compile-fail/issue-7575.rs @@ -10,14 +10,12 @@ // Test the mechanism for warning about possible missing `self` declarations. -use std::marker::MarkerTrait; - trait CtxtFn { fn f8(self, usize) -> usize; fn f9(usize) -> usize; //~ NOTE candidate } -trait OtherTrait : MarkerTrait { +trait OtherTrait { fn f9(usize) -> usize; //~ NOTE candidate } @@ -26,7 +24,7 @@ trait OtherTrait : MarkerTrait { // declaration to match against, so we wind up prisizeing it as a // candidate. This seems not unreasonable -- perhaps the user meant to // implement it, after all. -trait UnusedTrait : MarkerTrait { +trait UnusedTrait { fn f9(usize) -> usize; //~ NOTE candidate } @@ -54,7 +52,7 @@ impl Myisize { } } -trait ManyImplTrait : MarkerTrait { +trait ManyImplTrait { fn is_str() -> bool { //~ NOTE candidate false } diff --git a/src/test/compile-fail/kindck-copy.rs b/src/test/compile-fail/kindck-copy.rs index 1925caf6870..d43ddff6b95 100644 --- a/src/test/compile-fail/kindck-copy.rs +++ b/src/test/compile-fail/kindck-copy.rs @@ -10,12 +10,11 @@ // Test which of the builtin types are considered POD. -use std::marker::MarkerTrait; use std::rc::Rc; fn assert_copy<T:Copy>() { } -trait Dummy : MarkerTrait { } +trait Dummy { } #[derive(Copy, Clone)] struct MyStruct { diff --git a/src/test/compile-fail/kindck-impl-type-params-2.rs b/src/test/compile-fail/kindck-impl-type-params-2.rs index fd0789421e0..66297d70ef5 100644 --- a/src/test/compile-fail/kindck-impl-type-params-2.rs +++ b/src/test/compile-fail/kindck-impl-type-params-2.rs @@ -10,9 +10,7 @@ #![feature(box_syntax)] -use std::marker::MarkerTrait; - -trait Foo : MarkerTrait { +trait Foo { } impl<T:Copy> Foo for T { diff --git a/src/test/compile-fail/kindck-send-object.rs b/src/test/compile-fail/kindck-send-object.rs index 0c68401bb2b..570f7ad7fe3 100644 --- a/src/test/compile-fail/kindck-send-object.rs +++ b/src/test/compile-fail/kindck-send-object.rs @@ -12,10 +12,8 @@ // in this file all test the "kind" violates detected during kindck. // See all `regions-bounded-by-send.rs` -use std::marker::MarkerTrait; - fn assert_send<T:Send>() { } -trait Dummy : MarkerTrait { } +trait Dummy { } trait Message : Send { } // careful with object types, who knows what they close over... diff --git a/src/test/compile-fail/kindck-send-object1.rs b/src/test/compile-fail/kindck-send-object1.rs index f86eac8b16b..48d5215b708 100644 --- a/src/test/compile-fail/kindck-send-object1.rs +++ b/src/test/compile-fail/kindck-send-object1.rs @@ -12,10 +12,8 @@ // is broken into two parts because some errors occur in distinct // phases in the compiler. See kindck-send-object2.rs as well! -use std::marker::MarkerTrait; - fn assert_send<T:Send+'static>() { } -trait Dummy : MarkerTrait { } +trait Dummy { } // careful with object types, who knows what they close over... fn test51<'a>() { diff --git a/src/test/compile-fail/kindck-send-object2.rs b/src/test/compile-fail/kindck-send-object2.rs index 08516e67318..d3d166e2a69 100644 --- a/src/test/compile-fail/kindck-send-object2.rs +++ b/src/test/compile-fail/kindck-send-object2.rs @@ -10,10 +10,8 @@ // Continue kindck-send-object1.rs. -use std::marker::MarkerTrait; - fn assert_send<T:Send>() { } -trait Dummy : MarkerTrait { } +trait Dummy { } fn test50() { assert_send::<&'static Dummy>(); //~ ERROR the trait `core::marker::Sync` is not implemented diff --git a/src/test/compile-fail/lint-visible-private-types.rs b/src/test/compile-fail/lint-visible-private-types.rs index 918b4ee209c..c6dc3b70bef 100644 --- a/src/test/compile-fail/lint-visible-private-types.rs +++ b/src/test/compile-fail/lint-visible-private-types.rs @@ -105,7 +105,7 @@ impl PrivTrait for (Private<isize>,) { fn bar(&self) -> Private<isize> { panic!() } } -pub trait ParamTrait<T> : marker::MarkerTrait { +pub trait ParamTrait<T> { fn foo() -> T; } diff --git a/src/test/compile-fail/object-does-not-impl-trait.rs b/src/test/compile-fail/object-does-not-impl-trait.rs index 607ab13d122..efbf3782f97 100644 --- a/src/test/compile-fail/object-does-not-impl-trait.rs +++ b/src/test/compile-fail/object-does-not-impl-trait.rs @@ -11,9 +11,7 @@ // Test that an object type `Box<Foo>` is not considered to implement the // trait `Foo`. Issue #5087. -use std::marker::MarkerTrait; - -trait Foo : MarkerTrait {} +trait Foo {} fn take_foo<F:Foo>(f: F) {} fn take_object(f: Box<Foo>) { take_foo(f); } //~^ ERROR the trait `Foo` is not implemented diff --git a/src/test/compile-fail/object-safety-no-static.rs b/src/test/compile-fail/object-safety-no-static.rs index aae829ec7b5..6a010d49692 100644 --- a/src/test/compile-fail/object-safety-no-static.rs +++ b/src/test/compile-fail/object-safety-no-static.rs @@ -11,7 +11,7 @@ // Check that we correctly prevent users from making trait objects // from traits with static methods. -trait Foo : ::std::marker::MarkerTrait { +trait Foo { fn foo(); } diff --git a/src/test/compile-fail/phantom-oibit.rs b/src/test/compile-fail/phantom-oibit.rs index c912d084daa..071b4db40f8 100644 --- a/src/test/compile-fail/phantom-oibit.rs +++ b/src/test/compile-fail/phantom-oibit.rs @@ -14,9 +14,9 @@ #![feature(optin_builtin_traits)] -use std::marker::{MarkerTrait, PhantomData}; +use std::marker::{PhantomData}; -unsafe trait Zen: MarkerTrait {} +unsafe trait Zen {} unsafe impl Zen for .. {} diff --git a/src/test/compile-fail/privacy-ns2.rs b/src/test/compile-fail/privacy-ns2.rs index 67bb566ea68..7fe0574ab7d 100644 --- a/src/test/compile-fail/privacy-ns2.rs +++ b/src/test/compile-fail/privacy-ns2.rs @@ -17,9 +17,7 @@ // public type, private value pub mod foo1 { - use std::marker::MarkerTrait; - - pub trait Bar : MarkerTrait { + pub trait Bar { } pub struct Baz; @@ -41,7 +39,7 @@ fn test_list1() { // private type, public value pub mod foo2 { - trait Bar : ::std::marker::MarkerTrait { + trait Bar { } pub struct Baz; @@ -62,7 +60,7 @@ fn test_list2() { // neither public pub mod foo3 { - trait Bar : ::std::marker::MarkerTrait { + trait Bar { } pub struct Baz; diff --git a/src/test/compile-fail/region-object-lifetime-in-coercion.rs b/src/test/compile-fail/region-object-lifetime-in-coercion.rs index 1bb2bb5a154..f95ee405895 100644 --- a/src/test/compile-fail/region-object-lifetime-in-coercion.rs +++ b/src/test/compile-fail/region-object-lifetime-in-coercion.rs @@ -11,7 +11,7 @@ // Test that attempts to implicitly coerce a value into an // object respect the lifetime bound on the object type. -trait Foo : ::std::marker::MarkerTrait {} +trait Foo {} impl<'a> Foo for &'a [u8] {} // FIXME (#22405): Replace `Box::new` with `box` here when/if possible. diff --git a/src/test/compile-fail/regions-close-associated-type-into-object.rs b/src/test/compile-fail/regions-close-associated-type-into-object.rs index f80b0ffa5aa..fdc97ecaf21 100644 --- a/src/test/compile-fail/regions-close-associated-type-into-object.rs +++ b/src/test/compile-fail/regions-close-associated-type-into-object.rs @@ -12,9 +12,7 @@ // FIXME (#22405): Replace `Box::new` with `box` here when/if possible. -use std::marker::MarkerTrait; - -trait X : MarkerTrait {} +trait X {} trait Iter { type Item: X; diff --git a/src/test/compile-fail/regions-close-over-borrowed-ref-in-obj.rs b/src/test/compile-fail/regions-close-over-borrowed-ref-in-obj.rs index 2341d2397c9..25b8137d29c 100644 --- a/src/test/compile-fail/regions-close-over-borrowed-ref-in-obj.rs +++ b/src/test/compile-fail/regions-close-over-borrowed-ref-in-obj.rs @@ -10,9 +10,7 @@ #![feature(box_syntax)] -use std::marker::MarkerTrait; - -trait Foo : MarkerTrait { } +trait Foo { } impl<'a> Foo for &'a isize { } diff --git a/src/test/compile-fail/trait-as-struct-constructor.rs b/src/test/compile-fail/trait-as-struct-constructor.rs index 1fd711ca4fb..b864e6ca957 100644 --- a/src/test/compile-fail/trait-as-struct-constructor.rs +++ b/src/test/compile-fail/trait-as-struct-constructor.rs @@ -8,7 +8,7 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. -trait TraitNotAStruct : ::std::marker::MarkerTrait { } +trait TraitNotAStruct {} fn main() { TraitNotAStruct{ value: 0 }; diff --git a/src/test/compile-fail/trait-bounds-on-structs-and-enums.rs b/src/test/compile-fail/trait-bounds-on-structs-and-enums.rs index ce0a7d3bb36..c18c5b386e8 100644 --- a/src/test/compile-fail/trait-bounds-on-structs-and-enums.rs +++ b/src/test/compile-fail/trait-bounds-on-structs-and-enums.rs @@ -8,9 +8,7 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. -use std::marker::MarkerTrait; - -trait Trait : MarkerTrait {} +trait Trait {} struct Foo<T:Trait> { x: T, diff --git a/src/test/compile-fail/trait-bounds-sugar.rs b/src/test/compile-fail/trait-bounds-sugar.rs index e4058a0943a..0a36fcbed69 100644 --- a/src/test/compile-fail/trait-bounds-sugar.rs +++ b/src/test/compile-fail/trait-bounds-sugar.rs @@ -10,9 +10,7 @@ // Tests for "default" bounds inferred for traits with no bounds list. -use std::marker::MarkerTrait; - -trait Foo : MarkerTrait {} +trait Foo {} fn a(_x: Box<Foo+Send>) { } diff --git a/src/test/compile-fail/trait-impl-1.rs b/src/test/compile-fail/trait-impl-1.rs index 2f4793b4d88..dadcbd5bce7 100644 --- a/src/test/compile-fail/trait-impl-1.rs +++ b/src/test/compile-fail/trait-impl-1.rs @@ -12,9 +12,7 @@ // trait impl is only applied to a trait object, not concrete types which implement // the trait. -use std::marker::MarkerTrait; - -trait T : MarkerTrait {} +trait T {} impl<'a> T+'a { fn foo(&self) {} diff --git a/src/test/compile-fail/type-params-in-different-spaces-1.rs b/src/test/compile-fail/type-params-in-different-spaces-1.rs index 88d8788d63a..155b835bbc6 100644 --- a/src/test/compile-fail/type-params-in-different-spaces-1.rs +++ b/src/test/compile-fail/type-params-in-different-spaces-1.rs @@ -8,9 +8,9 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. -use std::num::Int; +use std::ops::Add; -trait BrokenAdd: Int { +trait BrokenAdd: Copy + Add<Output=Self> { fn broken_add<T>(&self, rhs: T) -> Self { *self + rhs //~ ERROR mismatched types //~| expected `Self` @@ -20,7 +20,7 @@ trait BrokenAdd: Int { } } -impl<T: Int> BrokenAdd for T {} +impl<T: Copy + Add<Output=T>> BrokenAdd for T {} pub fn main() { let foo: u8 = 0; diff --git a/src/test/compile-fail/typeck-default-trait-impl-constituent-types-2.rs b/src/test/compile-fail/typeck-default-trait-impl-constituent-types-2.rs index 0f3453da431..a27f7f7ebbe 100644 --- a/src/test/compile-fail/typeck-default-trait-impl-constituent-types-2.rs +++ b/src/test/compile-fail/typeck-default-trait-impl-constituent-types-2.rs @@ -10,9 +10,7 @@ #![feature(optin_builtin_traits)] -use std::marker::MarkerTrait; - -trait MyTrait: MarkerTrait {} +trait MyTrait {} impl MyTrait for .. {} diff --git a/src/test/compile-fail/typeck-default-trait-impl-constituent-types.rs b/src/test/compile-fail/typeck-default-trait-impl-constituent-types.rs index 524f467e017..24819bb4f08 100644 --- a/src/test/compile-fail/typeck-default-trait-impl-constituent-types.rs +++ b/src/test/compile-fail/typeck-default-trait-impl-constituent-types.rs @@ -10,9 +10,7 @@ #![feature(optin_builtin_traits)] -use std::marker::MarkerTrait; - -trait MyTrait: MarkerTrait {} +trait MyTrait {} impl MyTrait for .. {} impl<T> !MyTrait for *mut T {} diff --git a/src/test/compile-fail/typeck-default-trait-impl-negation.rs b/src/test/compile-fail/typeck-default-trait-impl-negation.rs index a1ca0e3e0fa..4b91d0b7a73 100644 --- a/src/test/compile-fail/typeck-default-trait-impl-negation.rs +++ b/src/test/compile-fail/typeck-default-trait-impl-negation.rs @@ -10,13 +10,11 @@ #![feature(optin_builtin_traits)] -use std::marker::MarkerTrait; - -trait MyTrait: MarkerTrait {} +trait MyTrait {} impl MyTrait for .. {} -unsafe trait MyUnsafeTrait: MarkerTrait {} +unsafe trait MyUnsafeTrait {} unsafe impl MyUnsafeTrait for .. {} diff --git a/src/test/compile-fail/typeck-default-trait-impl-precedence.rs b/src/test/compile-fail/typeck-default-trait-impl-precedence.rs index 4006eb2e83e..c67fc92313c 100644 --- a/src/test/compile-fail/typeck-default-trait-impl-precedence.rs +++ b/src/test/compile-fail/typeck-default-trait-impl-precedence.rs @@ -15,15 +15,13 @@ #![feature(optin_builtin_traits)] -use std::marker::MarkerTrait; - -trait Defaulted : MarkerTrait { } +trait Defaulted { } impl Defaulted for .. { } impl<'a,T:Signed> Defaulted for &'a T { } impl<'a,T:Signed> Defaulted for &'a mut T { } fn is_defaulted<T:Defaulted>() { } -trait Signed : MarkerTrait { } +trait Signed { } impl Signed for i32 { } fn main() { diff --git a/src/test/compile-fail/typeck-default-trait-impl-superregion.rs b/src/test/compile-fail/typeck-default-trait-impl-superregion.rs index 4a6a77ac7b4..aa918119fbc 100644 --- a/src/test/compile-fail/typeck-default-trait-impl-superregion.rs +++ b/src/test/compile-fail/typeck-default-trait-impl-superregion.rs @@ -13,8 +13,6 @@ #![feature(optin_builtin_traits)] -use std::marker::MarkerTrait; - trait MyTrait : 'static {} impl MyTrait for .. {} diff --git a/src/test/compile-fail/typeck-default-trait-impl-supertrait.rs b/src/test/compile-fail/typeck-default-trait-impl-supertrait.rs index 7f24058e475..c9bfdff6c0e 100644 --- a/src/test/compile-fail/typeck-default-trait-impl-supertrait.rs +++ b/src/test/compile-fail/typeck-default-trait-impl-supertrait.rs @@ -13,9 +13,7 @@ #![feature(optin_builtin_traits)] -use std::marker::MarkerTrait; - -trait NotImplemented: MarkerTrait { } +trait NotImplemented { } trait MyTrait : NotImplemented {} diff --git a/src/test/compile-fail/typeck-default-trait-impl-trait-where-clause.rs b/src/test/compile-fail/typeck-default-trait-impl-trait-where-clause.rs index c970aaaf5d4..4f572e87639 100644 --- a/src/test/compile-fail/typeck-default-trait-impl-trait-where-clause.rs +++ b/src/test/compile-fail/typeck-default-trait-impl-trait-where-clause.rs @@ -15,11 +15,9 @@ #![feature(optin_builtin_traits)] -use std::marker::MarkerTrait; +trait NotImplemented { } -trait NotImplemented: MarkerTrait { } - -trait MyTrait: MarkerTrait +trait MyTrait where Option<Self> : NotImplemented {} diff --git a/src/test/compile-fail/unsized6.rs b/src/test/compile-fail/unsized6.rs index f31a6ffdc0d..3f18f359d30 100644 --- a/src/test/compile-fail/unsized6.rs +++ b/src/test/compile-fail/unsized6.rs @@ -10,9 +10,7 @@ // Test `?Sized` local variables. -use std::marker; - -trait T : marker::MarkerTrait { } +trait T {} fn f1<X: ?Sized>(x: &X) { let _: X; // <-- this is OK, no bindings created, no initializer. diff --git a/src/test/compile-fail/unsized7.rs b/src/test/compile-fail/unsized7.rs index 6ea3d0720ee..0245a1b5cf2 100644 --- a/src/test/compile-fail/unsized7.rs +++ b/src/test/compile-fail/unsized7.rs @@ -10,9 +10,7 @@ // Test sized-ness checking in substitution in impls. -use std::marker::MarkerTrait; - -trait T : MarkerTrait {} +trait T {} // I would like these to fail eventually. // impl - bounded diff --git a/src/test/pretty/default-trait-impl.rs b/src/test/pretty/default-trait-impl.rs index 509bee9def2..a5246b9300c 100644 --- a/src/test/pretty/default-trait-impl.rs +++ b/src/test/pretty/default-trait-impl.rs @@ -8,13 +8,11 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. -#![feature(optin_builtin_traits, core)] +#![feature(optin_builtin_traits)] // pp-exact -use std::marker::MarkerTrait; - -trait MyTrait: MarkerTrait { } +trait MyTrait { } impl MyTrait for .. { } diff --git a/src/test/run-make/save-analysis/foo.rs b/src/test/run-make/save-analysis/foo.rs index fe0f32d97d6..4d75e58aad9 100644 --- a/src/test/run-make/save-analysis/foo.rs +++ b/src/test/run-make/save-analysis/foo.rs @@ -25,8 +25,6 @@ use sub::sub2 as msalias; use sub::sub2; use sub::sub2::nested_struct as sub_struct; use std::num::One; -use std::num::cast; -use std::num::{from_int,from_i8,from_i32}; use std::mem::size_of; @@ -42,7 +40,6 @@ fn test_alias<I: Iterator>(i: Option<<I as Iterator>::Item>) { // import tests fn foo(x: &One) {} - let _: Option<u8> = from_i32(45); let x = 42; diff --git a/src/test/run-pass/associated-types-basic.rs b/src/test/run-pass/associated-types-basic.rs index 06521e0ec78..2617a05fe24 100644 --- a/src/test/run-pass/associated-types-basic.rs +++ b/src/test/run-pass/associated-types-basic.rs @@ -8,12 +8,7 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. - -#![feature(core)] - -use std::marker::MarkerTrait; - -trait Foo : MarkerTrait { +trait Foo { type T; } diff --git a/src/test/run-pass/associated-types-issue-20371.rs b/src/test/run-pass/associated-types-issue-20371.rs index a601dc0739a..c93a0b76a95 100644 --- a/src/test/run-pass/associated-types-issue-20371.rs +++ b/src/test/run-pass/associated-types-issue-20371.rs @@ -13,10 +13,6 @@ // pretty-expanded FIXME #23616 -#![feature(core)] - -use std::marker::MarkerTrait; - impl X for f64 { type Y = isize; } -trait X : MarkerTrait { type Y; } +trait X { type Y; } fn main() {} diff --git a/src/test/run-pass/associated-types-nested-projections.rs b/src/test/run-pass/associated-types-nested-projections.rs index a26b428a4ea..83f0d360e61 100644 --- a/src/test/run-pass/associated-types-nested-projections.rs +++ b/src/test/run-pass/associated-types-nested-projections.rs @@ -14,10 +14,9 @@ #![feature(core)] -use std::marker::MarkerTrait; use std::slice; -trait Bound : MarkerTrait {} +trait Bound {} impl<'a> Bound for &'a i32 {} diff --git a/src/test/run-pass/associated-types-normalize-in-bounds-binding.rs b/src/test/run-pass/associated-types-normalize-in-bounds-binding.rs index d95ad2e8834..7e2d1aa2314 100644 --- a/src/test/run-pass/associated-types-normalize-in-bounds-binding.rs +++ b/src/test/run-pass/associated-types-normalize-in-bounds-binding.rs @@ -13,12 +13,9 @@ // pretty-expanded FIXME #23616 -#![feature(core)] #![allow(dead_code)] -use std::marker::MarkerTrait; - -pub trait Integral : MarkerTrait { +pub trait Integral { type Opposite; } diff --git a/src/test/run-pass/associated-types-project-from-type-param-via-bound-in-where-clause.rs b/src/test/run-pass/associated-types-project-from-type-param-via-bound-in-where-clause.rs index dfd468884a1..1830b41d0b5 100644 --- a/src/test/run-pass/associated-types-project-from-type-param-via-bound-in-where-clause.rs +++ b/src/test/run-pass/associated-types-project-from-type-param-via-bound-in-where-clause.rs @@ -12,17 +12,14 @@ // `Item` originates in a where-clause, not the declaration of // `T`. Issue #20300. - -#![feature(core)] - -use std::marker::{MarkerTrait, PhantomData}; +use std::marker::{PhantomData}; use std::sync::atomic::{AtomicUsize, ATOMIC_USIZE_INIT}; use std::sync::atomic::Ordering::SeqCst; static COUNTER: AtomicUsize = ATOMIC_USIZE_INIT; // Preamble. -trait Trait : MarkerTrait { type Item; } +trait Trait { type Item; } struct Struct; impl Trait for Struct { type Item = u32; diff --git a/src/test/run-pass/const-binops.rs b/src/test/run-pass/const-binops.rs index 4b32ee35231..a29953bea88 100644 --- a/src/test/run-pass/const-binops.rs +++ b/src/test/run-pass/const-binops.rs @@ -11,7 +11,6 @@ macro_rules! assert_approx_eq { ($a:expr, $b:expr) => ({ - use std::num::Float; let (a, b) = (&$a, &$b); assert!((*a - *b).abs() < 1.0e-6, "{} is not approximately equal to {}", *a, *b); diff --git a/src/test/run-pass/derive-no-std.rs b/src/test/run-pass/derive-no-std.rs index fbc6c28fd4a..0234d7b0b63 100644 --- a/src/test/run-pass/derive-no-std.rs +++ b/src/test/run-pass/derive-no-std.rs @@ -31,7 +31,6 @@ enum Bar { Quux(u32), } -#[derive(FromPrimitive)] enum Baz { A=0, B=5, } fn main() { diff --git a/src/test/run-pass/deriving-primitive.rs b/src/test/run-pass/deriving-primitive.rs deleted file mode 100644 index 4399d741cad..00000000000 --- a/src/test/run-pass/deriving-primitive.rs +++ /dev/null @@ -1,39 +0,0 @@ -// Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT -// file at the top-level directory of this distribution and at -// http://rust-lang.org/COPYRIGHT. -// -// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or -// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license -// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your -// option. This file may not be copied, modified, or distributed -// except according to those terms. - -#![feature(core)] - -use std::num::FromPrimitive; -use std::isize; - -#[derive(PartialEq, FromPrimitive, Debug)] -enum A { - Foo = isize::MAX, - Bar = 1, - Baz = 3, - Qux, -} - -pub fn main() { - let x: Option<A> = FromPrimitive::from_int(isize::MAX); - assert_eq!(x, Some(A::Foo)); - - let x: Option<A> = FromPrimitive::from_int(1); - assert_eq!(x, Some(A::Bar)); - - let x: Option<A> = FromPrimitive::from_int(3); - assert_eq!(x, Some(A::Baz)); - - let x: Option<A> = FromPrimitive::from_int(4); - assert_eq!(x, Some(A::Qux)); - - let x: Option<A> = FromPrimitive::from_int(5); - assert_eq!(x, None); -} diff --git a/src/test/run-pass/early-ret-binop-add.rs b/src/test/run-pass/early-ret-binop-add.rs index 7bd292e66f2..0a490466ef7 100644 --- a/src/test/run-pass/early-ret-binop-add.rs +++ b/src/test/run-pass/early-ret-binop-add.rs @@ -10,8 +10,8 @@ // pretty-expanded FIXME #23616 -use std::num::Int; +use std::ops::Add; -fn wsucc<T:Int>(n: T) -> T { n + { return n } } +fn wsucc<T:Add<Output=T> + Copy>(n: T) -> T { n + { return n } } pub fn main() { } diff --git a/src/test/run-pass/exponential-notation.rs b/src/test/run-pass/exponential-notation.rs deleted file mode 100644 index 4d54bb4ef72..00000000000 --- a/src/test/run-pass/exponential-notation.rs +++ /dev/null @@ -1,39 +0,0 @@ -// Copyright 2014 The Rust Project Developers. See the COPYRIGHT -// file at the top-level directory of this distribution and at -// http://rust-lang.org/COPYRIGHT. -// -// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or -// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license -// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your -// option. This file may not be copied, modified, or distributed -// except according to those terms. - - -#![feature(std_misc)] - -use std::num::strconv::ExponentFormat::{ExpBin, ExpDec}; -use std::num::strconv::SignificantDigits::DigMax; -use std::num::strconv::SignFormat::{SignAll, SignNeg}; -use std::num::strconv::float_to_str_common as to_string; - -macro_rules! t { - ($a:expr, $b:expr) => { { let (r, _) = $a; assert_eq!(r, $b.to_string()); } } -} - -pub fn main() { - // Basic usage - t!(to_string(1.2345678e-5f64, 10, true, SignNeg, DigMax(6), ExpDec, false), - "1.234568e-5"); - - // Hexadecimal output - t!(to_string(7.281738281250e+01f64, 16, true, SignAll, DigMax(6), ExpBin, false), - "+1.2345p+6"); - t!(to_string(-1.777768135071e-02f64, 16, true, SignAll, DigMax(6), ExpBin, false), - "-1.2345p-6"); - - // Some denormals - t!(to_string(4.9406564584124654e-324f64, 10, true, SignNeg, DigMax(6), ExpBin, false), - "1p-1074"); - t!(to_string(2.2250738585072009e-308f64, 10, true, SignNeg, DigMax(6), ExpBin, false), - "1p-1022"); -} diff --git a/src/test/run-pass/extern-methods.rs b/src/test/run-pass/extern-methods.rs index 28a076113d1..421b19f2864 100644 --- a/src/test/run-pass/extern-methods.rs +++ b/src/test/run-pass/extern-methods.rs @@ -8,12 +8,7 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. - -#![feature(core)] - -use std::marker::MarkerTrait; - -trait A : MarkerTrait { +trait A { extern "fastcall" fn test1(i: i32); extern fn test2(i: i32); } diff --git a/src/test/run-pass/float-nan.rs b/src/test/run-pass/float-nan.rs index 298f2a4719d..856599431fd 100644 --- a/src/test/run-pass/float-nan.rs +++ b/src/test/run-pass/float-nan.rs @@ -8,17 +8,14 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. - -#![feature(std_misc)] - -use std::num::Float; +use std::f64; pub fn main() { - let nan: f64 = Float::nan(); + let nan: f64 = f64::NAN; assert!((nan).is_nan()); - let inf: f64 = Float::infinity(); - let neg_inf: f64 = Float::neg_infinity(); + let inf: f64 = f64::INFINITY; + let neg_inf: f64 = -f64::INFINITY; assert_eq!(-inf, neg_inf); assert!( nan != nan); diff --git a/src/test/run-pass/intrinsics-math.rs b/src/test/run-pass/intrinsics-math.rs index 8db29ebaa6d..37ceaae373b 100644 --- a/src/test/run-pass/intrinsics-math.rs +++ b/src/test/run-pass/intrinsics-math.rs @@ -13,7 +13,6 @@ macro_rules! assert_approx_eq { ($a:expr, $b:expr) => ({ - use std::num::Float; let (a, b) = (&$a, &$b); assert!((*a - *b).abs() < 1.0e-6, "{} is not approximately equal to {}", *a, *b); diff --git a/src/test/run-pass/issue-11736.rs b/src/test/run-pass/issue-11736.rs index fde04efc8ba..b4621a2d053 100644 --- a/src/test/run-pass/issue-11736.rs +++ b/src/test/run-pass/issue-11736.rs @@ -12,10 +12,7 @@ #![feature(collections)] -extern crate collections; - use std::collections::BitVec; -use std::num::Float; fn main() { // Generate sieve of Eratosthenes for n up to 1e6 diff --git a/src/test/run-pass/issue-13105.rs b/src/test/run-pass/issue-13105.rs index 14de9e90306..ca68272d2d0 100644 --- a/src/test/run-pass/issue-13105.rs +++ b/src/test/run-pass/issue-13105.rs @@ -10,11 +10,7 @@ // pretty-expanded FIXME #23616 -#![feature(core)] - -use std::marker::MarkerTrait; - -trait Foo : MarkerTrait { +trait Foo { fn quux(u8) {} } diff --git a/src/test/run-pass/issue-8460.rs b/src/test/run-pass/issue-8460.rs index 2469dec9947..4ebc43163ed 100644 --- a/src/test/run-pass/issue-8460.rs +++ b/src/test/run-pass/issue-8460.rs @@ -8,35 +8,30 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. +#![feature(zero_one)] -#![feature(core)] - -use std::num::Int; +use std::num::Zero; use std::thread; -// Avoid using constants, which would trigger compile-time errors. -fn min_val<T: Int>() -> T { Int::min_value() } -fn zero<T: Int>() -> T { Int::zero() } - fn main() { - assert!(thread::spawn(move|| { min_val::<isize>() / -1; }).join().is_err()); - assert!(thread::spawn(move|| { min_val::<i8>() / -1; }).join().is_err()); - assert!(thread::spawn(move|| { min_val::<i16>() / -1; }).join().is_err()); - assert!(thread::spawn(move|| { min_val::<i32>() / -1; }).join().is_err()); - assert!(thread::spawn(move|| { min_val::<i64>() / -1; }).join().is_err()); - assert!(thread::spawn(move|| { 1isize / zero::<isize>(); }).join().is_err()); - assert!(thread::spawn(move|| { 1i8 / zero::<i8>(); }).join().is_err()); - assert!(thread::spawn(move|| { 1i16 / zero::<i16>(); }).join().is_err()); - assert!(thread::spawn(move|| { 1i32 / zero::<i32>(); }).join().is_err()); - assert!(thread::spawn(move|| { 1i64 / zero::<i64>(); }).join().is_err()); - assert!(thread::spawn(move|| { min_val::<isize>() % -1; }).join().is_err()); - assert!(thread::spawn(move|| { min_val::<i8>() % -1; }).join().is_err()); - assert!(thread::spawn(move|| { min_val::<i16>() % -1; }).join().is_err()); - assert!(thread::spawn(move|| { min_val::<i32>() % -1; }).join().is_err()); - assert!(thread::spawn(move|| { min_val::<i64>() % -1; }).join().is_err()); - assert!(thread::spawn(move|| { 1isize % zero::<isize>(); }).join().is_err()); - assert!(thread::spawn(move|| { 1i8 % zero::<i8>(); }).join().is_err()); - assert!(thread::spawn(move|| { 1i16 % zero::<i16>(); }).join().is_err()); - assert!(thread::spawn(move|| { 1i32 % zero::<i32>(); }).join().is_err()); - assert!(thread::spawn(move|| { 1i64 % zero::<i64>(); }).join().is_err()); + assert!(thread::spawn(move|| { isize::min_value() / -1; }).join().is_err()); + assert!(thread::spawn(move|| { i8::min_value() / -1; }).join().is_err()); + assert!(thread::spawn(move|| { i16::min_value() / -1; }).join().is_err()); + assert!(thread::spawn(move|| { i32::min_value() / -1; }).join().is_err()); + assert!(thread::spawn(move|| { i64::min_value() / -1; }).join().is_err()); + assert!(thread::spawn(move|| { 1isize / isize::zero(); }).join().is_err()); + assert!(thread::spawn(move|| { 1i8 / i8::zero(); }).join().is_err()); + assert!(thread::spawn(move|| { 1i16 / i16::zero(); }).join().is_err()); + assert!(thread::spawn(move|| { 1i32 / i32::zero(); }).join().is_err()); + assert!(thread::spawn(move|| { 1i64 / i64::zero(); }).join().is_err()); + assert!(thread::spawn(move|| { isize::min_value() % -1; }).join().is_err()); + assert!(thread::spawn(move|| { i8::min_value() % -1; }).join().is_err()); + assert!(thread::spawn(move|| { i16::min_value() % -1; }).join().is_err()); + assert!(thread::spawn(move|| { i32::min_value() % -1; }).join().is_err()); + assert!(thread::spawn(move|| { i64::min_value() % -1; }).join().is_err()); + assert!(thread::spawn(move|| { 1isize % isize::zero(); }).join().is_err()); + assert!(thread::spawn(move|| { 1i8 % i8::zero(); }).join().is_err()); + assert!(thread::spawn(move|| { 1i16 % i16::zero(); }).join().is_err()); + assert!(thread::spawn(move|| { 1i32 % i32::zero(); }).join().is_err()); + assert!(thread::spawn(move|| { 1i64 % i64::zero(); }).join().is_err()); } diff --git a/src/test/run-pass/monomorphized-callees-with-ty-params-3314.rs b/src/test/run-pass/monomorphized-callees-with-ty-params-3314.rs index 12162ba9022..b7de1b5f4cb 100644 --- a/src/test/run-pass/monomorphized-callees-with-ty-params-3314.rs +++ b/src/test/run-pass/monomorphized-callees-with-ty-params-3314.rs @@ -10,11 +10,7 @@ // pretty-expanded FIXME #23616 -#![feature(core)] - -use std::marker::MarkerTrait; - -trait Serializer : MarkerTrait { +trait Serializer { } trait Serializable { diff --git a/src/test/run-pass/numeric-method-autoexport.rs b/src/test/run-pass/numeric-method-autoexport.rs index d5f64c1c7b1..b1d71abc785 100644 --- a/src/test/run-pass/numeric-method-autoexport.rs +++ b/src/test/run-pass/numeric-method-autoexport.rs @@ -15,11 +15,7 @@ // necessary. Testing the methods of the impls is done within the source // file for each numeric type. - -#![feature(core)] - use std::ops::Add; -use std::num::ToPrimitive; pub fn main() { // ints @@ -37,9 +33,4 @@ pub fn main() { assert_eq!(15_u16.add(6u16), 21_u16); assert_eq!(15_u32.add(6u32), 21_u32); assert_eq!(15_u64.add(6u64), 21_u64); - -// floats - // num - assert_eq!(10_f32.to_i32().unwrap(), 10); - assert_eq!(10_f64.to_i32().unwrap(), 10); } diff --git a/src/test/run-pass/overloaded-autoderef.rs b/src/test/run-pass/overloaded-autoderef.rs index ddd6ae4d0a0..5e924d015b6 100644 --- a/src/test/run-pass/overloaded-autoderef.rs +++ b/src/test/run-pass/overloaded-autoderef.rs @@ -13,7 +13,6 @@ use std::cell::RefCell; use std::rc::Rc; -use std::num::ToPrimitive; #[derive(PartialEq, Debug)] struct Point { @@ -23,9 +22,6 @@ struct Point { pub fn main() { let box_5: Box<_> = box 5_usize; - assert_eq!(Rc::new(5_usize).to_uint(), Some(5)); - // FIXME (#22405): Replace `Box::new` with `box` here when/if possible. - assert_eq!((Box::new(&Box::new(&Rc::new(Box::new(Box::new(&box_5)))))).to_uint(), Some(5)); let point = Rc::new(Point {x: 2, y: 4}); assert_eq!(point.x, 2); assert_eq!(point.y, 4); diff --git a/src/test/run-pass/syntax-trait-polarity.rs b/src/test/run-pass/syntax-trait-polarity.rs index ba8a3f77aac..f69b857981d 100644 --- a/src/test/run-pass/syntax-trait-polarity.rs +++ b/src/test/run-pass/syntax-trait-polarity.rs @@ -10,15 +10,13 @@ // pretty-expanded FIXME #23616 -#![feature(optin_builtin_traits, core)] - -use std::marker::{MarkerTrait, Send}; +#![feature(optin_builtin_traits)] struct TestType; impl TestType {} -trait TestTrait : MarkerTrait {} +trait TestTrait {} impl !Send for TestType {} diff --git a/src/test/run-pass/trait-bounds-basic.rs b/src/test/run-pass/trait-bounds-basic.rs index 50c9c43ba2b..558e69664ec 100644 --- a/src/test/run-pass/trait-bounds-basic.rs +++ b/src/test/run-pass/trait-bounds-basic.rs @@ -10,9 +10,7 @@ // pretty-expanded FIXME #23616 -#![feature(core)] - -trait Foo : ::std::marker::MarkerTrait { +trait Foo { } fn b(_x: Box<Foo+Send>) { diff --git a/src/test/run-pass/trait-bounds-on-structs-and-enums.rs b/src/test/run-pass/trait-bounds-on-structs-and-enums.rs index 60c1816b163..bb8ae8247fa 100644 --- a/src/test/run-pass/trait-bounds-on-structs-and-enums.rs +++ b/src/test/run-pass/trait-bounds-on-structs-and-enums.rs @@ -12,10 +12,10 @@ #![feature(core)] -trait U : ::std::marker::MarkerTrait {} +trait U {} trait T<X: U> { fn get(self) -> X; } -trait S2<Y: U> : ::std::marker::MarkerTrait { +trait S2<Y: U> { fn m(x: Box<T<Y>+'static>) {} } diff --git a/src/test/run-pass/trait-bounds-recursion.rs b/src/test/run-pass/trait-bounds-recursion.rs index 250390f70b4..d984e9cdc99 100644 --- a/src/test/run-pass/trait-bounds-recursion.rs +++ b/src/test/run-pass/trait-bounds-recursion.rs @@ -10,21 +10,19 @@ // pretty-expanded FIXME #23616 -#![feature(core)] - trait I { fn i(&self) -> Self; } -trait A<T:I> : ::std::marker::MarkerTrait { +trait A<T:I> { fn id(x:T) -> T { x.i() } } trait J<T> { fn j(&self) -> T; } -trait B<T:J<T>> : ::std::marker::MarkerTrait { +trait B<T:J<T>> { fn id(x:T) -> T { x.j() } } -trait C : ::std::marker::MarkerTrait { +trait C { fn id<T:J<T>>(x:T) -> T { x.j() } } diff --git a/src/test/run-pass/trait-inheritance-num.rs b/src/test/run-pass/trait-inheritance-num.rs index 4af049fc0c3..e5390ac8a62 100644 --- a/src/test/run-pass/trait-inheritance-num.rs +++ b/src/test/run-pass/trait-inheritance-num.rs @@ -10,16 +10,11 @@ // pretty-expanded FIXME #23616 -#![feature(core)] - -use std::cmp::{PartialEq, PartialOrd}; -use std::num::NumCast; - -pub trait NumExt: NumCast + PartialEq + PartialOrd {} +pub trait NumExt: PartialEq + PartialOrd {} pub trait FloatExt: NumExt {} -fn greater_than_one<T: NumExt>(n: &T) -> bool { *n > NumCast::from(1).unwrap() } -fn greater_than_one_float<T: FloatExt>(n: &T) -> bool { *n > NumCast::from(1).unwrap() } +fn greater_than_one<T: NumExt>(n: &T) -> bool { loop {} } +fn greater_than_one_float<T: FloatExt>(n: &T) -> bool { loop {} } pub fn main() {} diff --git a/src/test/run-pass/trait-inheritance-num0.rs b/src/test/run-pass/trait-inheritance-num0.rs index b7f95349356..83c2a9ad339 100644 --- a/src/test/run-pass/trait-inheritance-num0.rs +++ b/src/test/run-pass/trait-inheritance-num0.rs @@ -15,7 +15,10 @@ #![feature(core)] use std::cmp::PartialOrd; -use std::num::NumCast; + +pub trait NumCast { + fn from(i: i32) -> Option<Self>; +} pub trait Num { fn from_int(i: isize) -> Self; diff --git a/src/test/run-pass/trait-inheritance-num1.rs b/src/test/run-pass/trait-inheritance-num1.rs index 02ebf6bfa53..14a6a9a0c66 100644 --- a/src/test/run-pass/trait-inheritance-num1.rs +++ b/src/test/run-pass/trait-inheritance-num1.rs @@ -10,10 +10,9 @@ // pretty-expanded FIXME #23616 -#![feature(core)] - -use std::cmp::PartialOrd; -use std::num::NumCast; +pub trait NumCast { + fn from(i: i32) -> Option<Self>; +} pub trait NumExt: NumCast + PartialOrd { } diff --git a/src/test/run-pass/trait-inheritance-num2.rs b/src/test/run-pass/trait-inheritance-num2.rs index 773fc387a2a..5f8541a6da1 100644 --- a/src/test/run-pass/trait-inheritance-num2.rs +++ b/src/test/run-pass/trait-inheritance-num2.rs @@ -10,12 +10,7 @@ // A more complex example of numeric extensions -#![feature(core)] - -use std::cmp::{PartialEq, PartialOrd}; -use std::num::NumCast; - -pub trait TypeExt : ::std::marker::MarkerTrait { } +pub trait TypeExt {} impl TypeExt for u8 {} impl TypeExt for u16 {} @@ -33,7 +28,7 @@ impl TypeExt for f32 {} impl TypeExt for f64 {} -pub trait NumExt: TypeExt + PartialEq + PartialOrd + NumCast {} +pub trait NumExt: TypeExt + PartialEq + PartialOrd {} impl NumExt for u8 {} impl NumExt for u16 {} diff --git a/src/test/run-pass/trait-inheritance-num3.rs b/src/test/run-pass/trait-inheritance-num3.rs index b5cf25bc5a8..abf8d2baf87 100644 --- a/src/test/run-pass/trait-inheritance-num3.rs +++ b/src/test/run-pass/trait-inheritance-num3.rs @@ -8,14 +8,16 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. -#![feature(core)] - -use std::cmp::{PartialEq, PartialOrd}; -use std::num::NumCast; +pub trait NumCast { + fn from(i: i32) -> Option<Self>; +} pub trait NumExt: PartialEq + PartialOrd + NumCast {} impl NumExt for f32 {} +impl NumCast for f32 { + fn from(i: i32) -> Option<f32> { Some(i as f32) } +} fn num_eq_one<T: NumExt>(n: T) { println!("{}", n == NumCast::from(1).unwrap()) diff --git a/src/test/run-pass/trait-inheritance-num5.rs b/src/test/run-pass/trait-inheritance-num5.rs index b2c3900bc02..c6f8a5d4f1d 100644 --- a/src/test/run-pass/trait-inheritance-num5.rs +++ b/src/test/run-pass/trait-inheritance-num5.rs @@ -10,16 +10,22 @@ // pretty-expanded FIXME #23616 -#![feature(core)] - -use std::cmp::PartialEq; -use std::num::NumCast; +pub trait NumCast { + fn from(i: i32) -> Option<Self>; +} pub trait NumExt: PartialEq + NumCast {} impl NumExt for f32 {} impl NumExt for isize {} +impl NumCast for f32 { + fn from(i: i32) -> Option<f32> { Some(i as f32) } +} +impl NumCast for isize { + fn from(i: i32) -> Option<isize> { Some(i as isize) } +} + fn num_eq_one<T:NumExt>() -> T { NumCast::from(1).unwrap() } diff --git a/src/test/run-pass/trait-inheritance-self-in-supertype.rs b/src/test/run-pass/trait-inheritance-self-in-supertype.rs index ac9485594eb..c7e206cb474 100644 --- a/src/test/run-pass/trait-inheritance-self-in-supertype.rs +++ b/src/test/run-pass/trait-inheritance-self-in-supertype.rs @@ -10,9 +10,6 @@ // Test for issue #4183: use of Self in supertraits. - -use std::num::Float as StdFloat; - pub static FUZZY_EPSILON: f64 = 0.1; pub trait FuzzyEq<Eps> { diff --git a/src/test/run-pass/trait-inheritance-static2.rs b/src/test/run-pass/trait-inheritance-static2.rs index 62feecf045b..67bea3864a7 100644 --- a/src/test/run-pass/trait-inheritance-static2.rs +++ b/src/test/run-pass/trait-inheritance-static2.rs @@ -8,12 +8,9 @@ // option. This file may not be copied, modified, or distributed // except according to those terms. +pub trait MyEq {} -#![feature(core)] - -pub trait MyEq : ::std::marker::MarkerTrait { } - -pub trait MyNum : ::std::marker::MarkerTrait { +pub trait MyNum { fn from_int(isize) -> Self; } diff --git a/src/test/run-pass/unboxed-closures-infer-argument-types-from-expected-bound.rs b/src/test/run-pass/unboxed-closures-infer-argument-types-from-expected-bound.rs index d408612f9b8..c4944548e17 100644 --- a/src/test/run-pass/unboxed-closures-infer-argument-types-from-expected-bound.rs +++ b/src/test/run-pass/unboxed-closures-infer-argument-types-from-expected-bound.rs @@ -13,14 +13,18 @@ // pretty-expanded FIXME #23616 -#![feature(unboxed_closures, core)] +pub trait ToPrimitive { + fn to_int(&self) {} +} -use std::num::ToPrimitive; +impl ToPrimitive for isize {} +impl ToPrimitive for i32 {} +impl ToPrimitive for usize {} fn doit<T,F>(val: T, f: &F) where F : Fn(T) { - f.call((val,)) + f(val) } pub fn main() { diff --git a/src/test/run-pass/unboxed-closures-infer-argument-types-from-expected-object-type.rs b/src/test/run-pass/unboxed-closures-infer-argument-types-from-expected-object-type.rs index c1e1ff3cd8e..9cad7d61e32 100644 --- a/src/test/run-pass/unboxed-closures-infer-argument-types-from-expected-object-type.rs +++ b/src/test/run-pass/unboxed-closures-infer-argument-types-from-expected-object-type.rs @@ -13,11 +13,15 @@ // pretty-expanded FIXME #23616 -#![feature(unboxed_closures, core)] +pub trait ToPrimitive { + fn to_int(&self) {} +} -use std::num::ToPrimitive; +impl ToPrimitive for isize {} +impl ToPrimitive for i32 {} +impl ToPrimitive for usize {} -fn doit<T>(val: T, f: &Fn(T)) { f.call((val,)) } +fn doit<T>(val: T, f: &Fn(T)) { f(val) } pub fn main() { doit(0, &|x /*: isize*/ | { x.to_int(); }); diff --git a/src/test/run-pass/unboxed-closures-infer-argument-types-with-bound-regions-from-expected-bound.rs b/src/test/run-pass/unboxed-closures-infer-argument-types-with-bound-regions-from-expected-bound.rs index 99e2149de96..bdd1932182b 100644 --- a/src/test/run-pass/unboxed-closures-infer-argument-types-with-bound-regions-from-expected-bound.rs +++ b/src/test/run-pass/unboxed-closures-infer-argument-types-with-bound-regions-from-expected-bound.rs @@ -13,14 +13,18 @@ // pretty-expanded FIXME #23616 -#![feature(unboxed_closures, core)] +pub trait ToPrimitive { + fn to_int(&self) {} +} -use std::num::ToPrimitive; +impl ToPrimitive for isize {} +impl ToPrimitive for i32 {} +impl ToPrimitive for usize {} fn doit<T,F>(val: T, f: &F) where F : Fn(&T) { - f.call((&val,)) + f(&val) } pub fn main() { diff --git a/src/test/run-pass/utf8_idents.rs b/src/test/run-pass/utf8_idents.rs index 559afcd1641..579070a295a 100644 --- a/src/test/run-pass/utf8_idents.rs +++ b/src/test/run-pass/utf8_idents.rs @@ -11,8 +11,6 @@ #![feature(non_ascii_idents)] -use std::num::Float; - pub fn main() { let ε = 0.00001f64; let Π = 3.14f64; |