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// 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.
use core::cmp::PartialEq;
use core::fmt::Debug;
use core::ops::{Add, Sub, Mul, Div, Rem};
use core::marker::Copy;
#[macro_use]
mod int_macros;
mod i8;
mod i16;
mod i32;
mod i64;
#[macro_use]
mod uint_macros;
mod u8;
mod u16;
mod u32;
mod u64;
mod flt2dec;
mod dec2flt;
/// Helper function for testing numeric operations
pub fn test_num<T>(ten: T, two: T) where
T: PartialEq
+ Add<Output=T> + Sub<Output=T>
+ Mul<Output=T> + Div<Output=T>
+ Rem<Output=T> + Debug
+ Copy
{
assert_eq!(ten.add(two), ten + two);
assert_eq!(ten.sub(two), ten - two);
assert_eq!(ten.mul(two), ten * two);
assert_eq!(ten.div(two), ten / two);
assert_eq!(ten.rem(two), ten % two);
}
#[cfg(test)]
mod tests {
use core::option::Option;
use core::option::Option::{Some, None};
use core::num::Float;
#[test]
fn from_str_issue7588() {
let u : Option<u8> = u8::from_str_radix("1000", 10).ok();
assert_eq!(u, None);
let s : Option<i16> = i16::from_str_radix("80000", 10).ok();
assert_eq!(s, None);
let s = "10000000000000000000000000000000000000000";
let f : Option<f32> = f32::from_str_radix(s, 10).ok();
assert_eq!(f, Some(Float::infinity()));
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> = f64::from_str_radix("-123.456", 10).ok();
assert_eq!(x1, Some(-123.456));
let x2 : Option<f32> = f32::from_str_radix("123.456", 10).ok();
assert_eq!(x2, Some(123.456));
let x3 : Option<f32> = f32::from_str_radix("-0.0", 10).ok();
assert_eq!(x3, Some(-0.0));
let x4 : Option<f32> = f32::from_str_radix("0.0", 10).ok();
assert_eq!(x4, Some(0.0));
let x4 : Option<f32> = f32::from_str_radix("1.0", 10).ok();
assert_eq!(x4, Some(1.0));
let x5 : Option<f32> = f32::from_str_radix("-1.0", 10).ok();
assert_eq!(x5, Some(-1.0));
}
#[test]
fn test_int_from_str_overflow() {
let mut i8_val: i8 = 127;
assert_eq!("127".parse::<i8>().ok(), Some(i8_val));
assert_eq!("128".parse::<i8>().ok(), None);
i8_val = i8_val.wrapping_add(1);
assert_eq!("-128".parse::<i8>().ok(), Some(i8_val));
assert_eq!("-129".parse::<i8>().ok(), None);
let mut i16_val: i16 = 32_767;
assert_eq!("32767".parse::<i16>().ok(), Some(i16_val));
assert_eq!("32768".parse::<i16>().ok(), None);
i16_val = i16_val.wrapping_add(1);
assert_eq!("-32768".parse::<i16>().ok(), Some(i16_val));
assert_eq!("-32769".parse::<i16>().ok(), None);
let mut i32_val: i32 = 2_147_483_647;
assert_eq!("2147483647".parse::<i32>().ok(), Some(i32_val));
assert_eq!("2147483648".parse::<i32>().ok(), None);
i32_val = i32_val.wrapping_add(1);
assert_eq!("-2147483648".parse::<i32>().ok(), Some(i32_val));
assert_eq!("-2147483649".parse::<i32>().ok(), None);
let mut i64_val: i64 = 9_223_372_036_854_775_807;
assert_eq!("9223372036854775807".parse::<i64>().ok(), Some(i64_val));
assert_eq!("9223372036854775808".parse::<i64>().ok(), None);
i64_val = i64_val.wrapping_add(1);
assert_eq!("-9223372036854775808".parse::<i64>().ok(), Some(i64_val));
assert_eq!("-9223372036854775809".parse::<i64>().ok(), None);
}
#[test]
fn test_invalid() {
assert_eq!("--129".parse::<i8>().ok(), None);
assert_eq!("Съешь".parse::<u8>().ok(), None);
}
#[test]
fn test_empty() {
assert_eq!("-".parse::<i8>().ok(), None);
assert_eq!("".parse::<u8>().ok(), None);
}
}
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