rust/src/libcoretest/num/mod.rs

// 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::Show;
use core::num::{NumCast, cast};
use core::ops::{Add, Sub, Mul, Div, Rem};

mod int_macros;
mod i8;
mod i16;
mod i32;
mod i64;
mod int;
mod uint_macros;
mod u8;
mod u16;
mod u32;
mod u64;
mod uint;

/// Helper function for testing numeric operations
pub fn test_num<T>(ten: T, two: T) where
    T: PartialEq + NumCast
     + Add<T, T> + Sub<T, T>
     + Mul<T, T> + Div<T, T>
     + Rem<T, T> + Show
{
    assert_eq!(ten.add(&two),  cast(12i).unwrap());
    assert_eq!(ten.sub(&two),  cast(8i).unwrap());
    assert_eq!(ten.mul(&two),  cast(20i).unwrap());
    assert_eq!(ten.div(&two),  cast(5i).unwrap());
    assert_eq!(ten.rem(&two),  cast(0i).unwrap());

    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);
}