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2020-07-27mv std libs to library/mark-1955/+0
2020-04-20Use assoc float consts instead of module levelLinus Färnstrand-1/+0
2020-04-20Stop accessing module level int consts via crate::<Ty>Linus Färnstrand-1/+0
2020-04-16Dogfood or_patterns in the standard libraryJosh Stone-2/+2
2020-02-17Drop unused argument to float functionsMark Rousskov-2/+0
2020-02-15Formatter::sign is &'static strMark Rousskov-15/+15
The contents were always UTF-8 anyway, and &str has an equivalent representation to &[u8], so this should not affect performance while removing unsafety at edges. It may be worth exploring a further adjustment that stores a single byte (instead of 16) as the contents are always "", "-", or "+".
2019-12-21Require issue = "none" over issue = "0" in unstable attributesRoss MacArthur-1/+1
2019-11-26Format libcore with rustfmtDavid Tolnay-227/+437
This commit applies rustfmt with default settings to files in src/libcore *that are not involved in any currently open PR* to minimize merge conflicts. The list of files involved in open PRs was determined by querying GitHub's GraphQL API with this script: https://gist.github.com/dtolnay/aa9c34993dc051a4f344d1b10e4487e8 With the list of files from the script in `outstanding_files`, the relevant commands were: $ find src/libcore -name '*.rs' | xargs rustfmt --edition=2018 $ rg libcore outstanding_files | xargs git checkout -- Repeating this process several months apart should get us coverage of most of the rest of libcore.
2019-04-22Remove double trailing newlinesvarkor-1/+0
2019-04-18libcore => 2018Taiki Endo-13/+13
2019-03-25Utilize `?` instead of `return None`.Corey Farwell-4/+2
2019-03-11Improvements to comments in libstd, libcore, liballoc.Alexander Regueiro-8/+8
2018-12-25Remove licensesMark Rousskov-50/+0
2018-12-07Various minor/cosmetic improvements to codeAlexander Regueiro-14/+14
2018-11-10revert making internal APIs const fn.Mazdak Farrokhzad-1/+1
2018-11-10constify parts of libcore.Mazdak Farrokhzad-3/+1
2018-08-04Remove redundant field names in structsljedrz-21/+21
2018-07-11use proper footnote syntax for referencesAndy Russell-13/+11
The previous syntax was causing rustdoc to interpret them as links.
2018-07-08Fix some linksGuillaume Gomez-4/+4
2017-08-15use field init shorthand EVERYWHEREZack M. Davis-3/+3
Like #43008 (f668999), but _much more aggressive_.
2017-05-09fix confusion about parts required for float formattingNathan Froyd-8/+8
The documentation for flt2dec doesn't match up with the actual implementation, so fix the documentation to align with reality. Presumably due to the mismatch, the formatting code for floats in std::fmt can use correspondingly shorter arrays in some places, so fix those places up as well. Fixes #41304.
2017-04-20Remove float_extrasJosh Stone-2/+2
[unstable, deprecated since 1.11.0]
2017-04-03Move libXtest into libX/testsStjepan Glavina-1/+1
This change moves: 1. `libcoretest` into `libcore/tests` 2. `libcollectionstest` into `libcollections/tests` This is a follow-up to #39561.
2016-09-18Add missing Eq implementationsGuillaume Gomez-2/+2
2016-08-24Use `#[prelude_import]` in `libcore`.Jeffrey Seyfried-7/+0
2016-07-03std: Stabilize APIs for the 1.11.0 releaseAlex Crichton-4/+5
Although the set of APIs being stabilized this release is relatively small, the trains keep going! Listed below are the APIs in the standard library which have either transitioned from unstable to stable or those from unstable to deprecated. Stable * `BTreeMap::{append, split_off}` * `BTreeSet::{append, split_off}` * `Cell::get_mut` * `RefCell::get_mut` * `BinaryHeap::append` * `{f32, f64}::{to_degrees, to_radians}` - libcore stabilizations mirroring past libstd stabilizations * `Iterator::sum` * `Iterator::product` Deprecated * `{f32, f64}::next_after` * `{f32, f64}::integer_decode` * `{f32, f64}::ldexp` * `{f32, f64}::frexp` * `num::One` * `num::Zero` Added APIs (all unstable) * `iter::Sum` * `iter::Product` * `iter::Step` - a few methods were added to accomodate deprecation of One/Zero Removed APIs * `From<Range<T>> for RangeInclusive<T>` - everything about `RangeInclusive` is unstable Closes #27739 Closes #27752 Closes #32526 Closes #33444 Closes #34152 cc #34529 (new tracking issue)
2016-03-20libcore: add Debug implementations to most missing typesSean McArthur-0/+1
2016-02-26Use .copy_from_slice() where applicableUlrik Sverdrup-2/+2
.copy_from_slice() does the same job of .clone_from_slice(), but the former is explicitly for Copy elements and calls `memcpy` directly, and thus is it efficient without optimization too.
2016-01-16std: Stabilize APIs for the 1.7 releaseAlex Crichton-2/+2
This commit stabilizes and deprecates the FCP (final comment period) APIs for the upcoming 1.7 beta release. The specific APIs which changed were: Stabilized * `Path::strip_prefix` (renamed from `relative_from`) * `path::StripPrefixError` (new error type returned from `strip_prefix`) * `Ipv4Addr::is_loopback` * `Ipv4Addr::is_private` * `Ipv4Addr::is_link_local` * `Ipv4Addr::is_multicast` * `Ipv4Addr::is_broadcast` * `Ipv4Addr::is_documentation` * `Ipv6Addr::is_unspecified` * `Ipv6Addr::is_loopback` * `Ipv6Addr::is_unique_local` * `Ipv6Addr::is_multicast` * `Vec::as_slice` * `Vec::as_mut_slice` * `String::as_str` * `String::as_mut_str` * `<[T]>::clone_from_slice` - the `usize` return value is removed * `<[T]>::sort_by_key` * `i32::checked_rem` (and other signed types) * `i32::checked_neg` (and other signed types) * `i32::checked_shl` (and other signed types) * `i32::checked_shr` (and other signed types) * `i32::saturating_mul` (and other signed types) * `i32::overflowing_add` (and other signed types) * `i32::overflowing_sub` (and other signed types) * `i32::overflowing_mul` (and other signed types) * `i32::overflowing_div` (and other signed types) * `i32::overflowing_rem` (and other signed types) * `i32::overflowing_neg` (and other signed types) * `i32::overflowing_shl` (and other signed types) * `i32::overflowing_shr` (and other signed types) * `u32::checked_rem` (and other unsigned types) * `u32::checked_neg` (and other unsigned types) * `u32::checked_shl` (and other unsigned types) * `u32::saturating_mul` (and other unsigned types) * `u32::overflowing_add` (and other unsigned types) * `u32::overflowing_sub` (and other unsigned types) * `u32::overflowing_mul` (and other unsigned types) * `u32::overflowing_div` (and other unsigned types) * `u32::overflowing_rem` (and other unsigned types) * `u32::overflowing_neg` (and other unsigned types) * `u32::overflowing_shl` (and other unsigned types) * `u32::overflowing_shr` (and other unsigned types) * `ffi::IntoStringError` * `CString::into_string` * `CString::into_bytes` * `CString::into_bytes_with_nul` * `From<CString> for Vec<u8>` * `From<CString> for Vec<u8>` * `IntoStringError::into_cstring` * `IntoStringError::utf8_error` * `Error for IntoStringError` Deprecated * `Path::relative_from` - renamed to `strip_prefix` * `Path::prefix` - use `components().next()` instead * `os::unix::fs` constants - moved to the `libc` crate * `fmt::{radix, Radix, RadixFmt}` - not used enough to stabilize * `IntoCow` - conflicts with `Into` and may come back later * `i32::{BITS, BYTES}` (and other integers) - not pulling their weight * `DebugTuple::formatter` - will be removed * `sync::Semaphore` - not used enough and confused with system semaphores Closes #23284 cc #27709 (still lots more methods though) Closes #27712 Closes #27722 Closes #27728 Closes #27735 Closes #27729 Closes #27755 Closes #27782 Closes #27798
2015-12-05std: Stabilize APIs for the 1.6 releaseAlex Crichton-3/+2
This commit is the standard API stabilization commit for the 1.6 release cycle. The list of issues and APIs below have all been through their cycle-long FCP and the libs team decisions are listed below Stabilized APIs * `Read::read_exact` * `ErrorKind::UnexpectedEof` (renamed from `UnexpectedEOF`) * libcore -- this was a bit of a nuanced stabilization, the crate itself is now marked as `#[stable]` and the methods appearing via traits for primitives like `char` and `str` are now also marked as stable. Note that the extension traits themeselves are marked as unstable as they're imported via the prelude. The `try!` macro was also moved from the standard library into libcore to have the same interface. Otherwise the functions all have copied stability from the standard library now. * The `#![no_std]` attribute * `fs::DirBuilder` * `fs::DirBuilder::new` * `fs::DirBuilder::recursive` * `fs::DirBuilder::create` * `os::unix::fs::DirBuilderExt` * `os::unix::fs::DirBuilderExt::mode` * `vec::Drain` * `vec::Vec::drain` * `string::Drain` * `string::String::drain` * `vec_deque::Drain` * `vec_deque::VecDeque::drain` * `collections::hash_map::Drain` * `collections::hash_map::HashMap::drain` * `collections::hash_set::Drain` * `collections::hash_set::HashSet::drain` * `collections::binary_heap::Drain` * `collections::binary_heap::BinaryHeap::drain` * `Vec::extend_from_slice` (renamed from `push_all`) * `Mutex::get_mut` * `Mutex::into_inner` * `RwLock::get_mut` * `RwLock::into_inner` * `Iterator::min_by_key` (renamed from `min_by`) * `Iterator::max_by_key` (renamed from `max_by`) Deprecated APIs * `ErrorKind::UnexpectedEOF` (renamed to `UnexpectedEof`) * `OsString::from_bytes` * `OsStr::to_cstring` * `OsStr::to_bytes` * `fs::walk_dir` and `fs::WalkDir` * `path::Components::peek` * `slice::bytes::MutableByteVector` * `slice::bytes::copy_memory` * `Vec::push_all` (renamed to `extend_from_slice`) * `Duration::span` * `IpAddr` * `SocketAddr::ip` * `Read::tee` * `io::Tee` * `Write::broadcast` * `io::Broadcast` * `Iterator::min_by` (renamed to `min_by_key`) * `Iterator::max_by` (renamed to `max_by_key`) * `net::lookup_addr` New APIs (still unstable) * `<[T]>::sort_by_key` (added to mirror `min_by_key`) Closes #27585 Closes #27704 Closes #27707 Closes #27710 Closes #27711 Closes #27727 Closes #27740 Closes #27744 Closes #27799 Closes #27801 cc #27801 (doesn't close as `Chars` is still unstable) Closes #28968
2015-10-08typos: fix a grabbag of typos all over the placeCristi Cobzarenco-2/+2
2015-09-20Reorganize core::num internalsRobin Kruppe-546/+3
Move private bignum module to core::num, because it is not only used in flt2dec. Extract private 80-bit soft-float into new core::num module for the same reason.
2015-09-03Elide lifetimes in libcoreManish Goregaokar-7/+7
2015-08-26Make iter::order functions into methods on IteratorSteven Fackler-3/+1
This does cause some breakage due to deficiencies in resolve - `path::Components` is both an `Iterator` and implements `Eq`, `Ord`, etc. If one calls e.g. `partial_cmp` on a `Components` and passes a `&Components` intending to target the `PartialOrd` impl, the compiler will select the `partial_cmp` from `Iterator` and then error out. I doubt anyone will run into breakage from `Components` specifically, but we should see if there are third party types that will run into issues. `iter::order::equals` wasn't moved to `Iterator` since it's exactly the same as `iter::order::eq` but with an `Eq` instead of `PartialEq` bound, which doensn't seem very useful. I also updated `le`, `gt`, etc to use `partial_cmp` which lets us drop the extra `PartialEq` bound. cc #27737
2015-08-18Auto merge of #27823 - eefriedman:float-dep-core, r=alexcrichtonbors-9/+0
There wasn't any particular reason the functions needed to be there anyway, so just get rid of them, and adjust libstd to compensate. With this change, libcore depends on exactly two floating-point functions: fmod and fmodf. They are implicitly referenced because they are used to implement "%". Dependencies of libcore on Linux x86-x64 with this patch: ``` 0000000000000000 *UND* 0000000000000000 __powidf2 0000000000000000 *UND* 0000000000000000 __powisf2 0000000000000000 *UND* 0000000000000000 fmod 0000000000000000 *UND* 0000000000000000 fmodf 0000000000000000 *UND* 0000000000000000 memcmp 0000000000000000 *UND* 0000000000000000 memcpy 0000000000000000 *UND* 0000000000000000 memset 0000000000000000 *UND* 0000000000000000 rust_begin_unwind 0000000000000000 *UND* 0000000000000000 rust_eh_personality ```
2015-08-17Remove dependencies on libm functions from libcore.Eli Friedman-9/+0
There wasn't any particular reason the functions needed to be there anyway, so just get rid of them, and adjust libstd to compensate. With this change, libcore depends on exactly two floating-point functions: fmod and fmodf. They are implicitly referenced because they are used to implement "%".
2015-08-15core: Fill out issues for unstable featuresAlex Crichton-1/+2
2015-08-08Accurate decimal-to-float parsing routines.Robin Kruppe-11/+10
This commit primarily adds implementations of the algorithms from William Clinger's paper "How to Read Floating Point Numbers Accurately". It also includes a lot of infrastructure necessary for those algorithms, and some unit tests. Since these algorithms reject a few (extreme) inputs that were previously accepted, this could be seen as a [breaking-change]
2015-08-08Add various methods to Bignum:Robin Kruppe-5/+141
- Exposing digits and individual bits - Counting the number of bits - Add small (digit-sized) values - Multiplication by power of 5 - Division with remainder All are necessary for decimal to floating point conversions. All but the most trivial ones come with tests.
2015-08-08Enlarge Bignum type from 1152 to 1280 bits.Robin Kruppe-6/+6
This is necessary for decimal-to-float code (in a later commit) to handle inputs such as 4.9406564584124654e-324 (the smallest subnormal f64). According to the benchmarks for flt2dec::dragon, this does not affect performance measurably. It probably uses slightly more stack space though.
2015-08-08Make core::num::dec2flt::strategy::grisu::Fp methods public.Robin Kruppe-3/+3
The intent is to allow decimal-to-float parsing to use Fp in its fast path. That code is added in a later commit.
2015-08-03syntax: Implement #![no_core]Alex Crichton-6/+9
This commit is an implementation of [RFC 1184][rfc] which tweaks the behavior of the `#![no_std]` attribute and adds a new `#![no_core]` attribute. The `#![no_std]` attribute now injects `extern crate core` at the top of the crate as well as the libcore prelude into all modules (in the same manner as the standard library's prelude). The `#![no_core]` attribute disables both std and core injection. [rfc]: https://github.com/rust-lang/rfcs/pull/1184
2015-06-17core: Split apart the global `core` featureAlex Crichton-0/+2
This commit shards the broad `core` feature of the libcore library into finer grained features. This split groups together similar APIs and enables tracking each API separately, giving a better sense of where each feature is within the stabilization process. A few minor APIs were deprecated along the way: * Iterator::reverse_in_place * marker::NoCopy
2015-06-10Removed many pointless calls to *iter() and iter_mut()Joshua Landau-3/+3
2015-06-07change some statics to constantsOliver 'ker' Schneider-4/+1
2015-05-06core: use banker's rounding for the exact mode in flt2dec.Kang Seonghoon-1/+5
For the shortest mode the IEEE 754 decoder already provides an exact rounding range accounting for banker's rounding, but it was not the case for the exact mode. This commit alters the exact mode algorithm for Dragon so that any number ending at `...x5000...` with even `x` and infinite zeroes will round to `...x` instead of `...(x+1)` as it was. Grisu is not affected by this change because this halfway case always results in the failure for Grisu.
2015-05-06core: updated for the master changes.Kang Seonghoon-0/+5
The master no longer has `std::num::Float`, so a generic `ldexp` is not readily available. `DecodableFloat::ldexpi` works around this.
2015-05-06core: fixed a slight bug.Kang Seonghoon-6/+6
The bug involves the incorrect logic for `core::num::flt2dec::decoder`. This makes some numbers in the form of 2^n missing one final digits, which breaks the bijectivity criterion. The regression tests have been added, and f32 exhaustive test is rerun to get the updated result.
2015-05-06core: fixed typos and revised comments in flt2dec.Kang Seonghoon-14/+17
2015-05-06core: tweaked flt2dec to match the casing of the older formatting code.Kang Seonghoon-18/+18
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