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// Copyright 2014-2015 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.
use core::mem::*;
#[test]
fn size_of_basic() {
assert_eq!(size_of::<u8>(), 1);
assert_eq!(size_of::<u16>(), 2);
assert_eq!(size_of::<u32>(), 4);
assert_eq!(size_of::<u64>(), 8);
}
#[test]
#[cfg(target_pointer_width = "16")]
fn size_of_16() {
assert_eq!(size_of::<usize>(), 2);
assert_eq!(size_of::<*const usize>(), 2);
}
#[test]
#[cfg(target_pointer_width = "32")]
fn size_of_32() {
assert_eq!(size_of::<usize>(), 4);
assert_eq!(size_of::<*const usize>(), 4);
}
#[test]
#[cfg(target_pointer_width = "64")]
fn size_of_64() {
assert_eq!(size_of::<usize>(), 8);
assert_eq!(size_of::<*const usize>(), 8);
}
#[test]
fn size_of_val_basic() {
assert_eq!(size_of_val(&1u8), 1);
assert_eq!(size_of_val(&1u16), 2);
assert_eq!(size_of_val(&1u32), 4);
assert_eq!(size_of_val(&1u64), 8);
}
#[test]
fn align_of_basic() {
assert_eq!(align_of::<u8>(), 1);
assert_eq!(align_of::<u16>(), 2);
assert_eq!(align_of::<u32>(), 4);
}
#[test]
#[cfg(target_pointer_width = "16")]
fn align_of_16() {
assert_eq!(align_of::<usize>(), 2);
assert_eq!(align_of::<*const usize>(), 2);
}
#[test]
#[cfg(target_pointer_width = "32")]
fn align_of_32() {
assert_eq!(align_of::<usize>(), 4);
assert_eq!(align_of::<*const usize>(), 4);
}
#[test]
#[cfg(target_pointer_width = "64")]
fn align_of_64() {
assert_eq!(align_of::<usize>(), 8);
assert_eq!(align_of::<*const usize>(), 8);
}
#[test]
fn align_of_val_basic() {
assert_eq!(align_of_val(&1u8), 1);
assert_eq!(align_of_val(&1u16), 2);
assert_eq!(align_of_val(&1u32), 4);
}
#[test]
fn test_swap() {
let mut x = 31337;
let mut y = 42;
swap(&mut x, &mut y);
assert_eq!(x, 42);
assert_eq!(y, 31337);
}
#[test]
fn test_replace() {
let mut x = Some("test".to_string());
let y = replace(&mut x, None);
assert!(x.is_none());
assert!(y.is_some());
}
#[test]
fn test_transmute_copy() {
assert_eq!(1, unsafe { transmute_copy(&1) });
}
#[test]
fn test_transmute() {
trait Foo { fn dummy(&self) { } }
impl Foo for isize {}
let a = box 100isize as Box<Foo>;
unsafe {
let x: ::core::raw::TraitObject = transmute(a);
assert!(*(x.data as *const isize) == 100);
let _x: Box<Foo> = transmute(x);
}
unsafe {
assert_eq!(transmute::<_, Vec<u8>>("L".to_string()), [76]);
}
}
|
