4d2709def2
Do so by using the fact that fixed size arrays (like `[u8; 8]` can be coerced to slices `&[u8]`, this is expressed through the trait `Unsize<[T]>` that all fixed size arrays implement.
29 lines
1.2 KiB
Rust
29 lines
1.2 KiB
Rust
// 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::array::FixedSizeArray;
|
|
|
|
#[test]
|
|
fn fixed_size_array() {
|
|
let mut array = [0; 64];
|
|
let mut zero_sized = [(); 64];
|
|
let mut empty_array = [0; 0];
|
|
let mut empty_zero_sized = [(); 0];
|
|
|
|
assert_eq!(FixedSizeArray::as_slice(&array).len(), 64);
|
|
assert_eq!(FixedSizeArray::as_slice(&zero_sized).len(), 64);
|
|
assert_eq!(FixedSizeArray::as_slice(&empty_array).len(), 0);
|
|
assert_eq!(FixedSizeArray::as_slice(&empty_zero_sized).len(), 0);
|
|
|
|
assert_eq!(FixedSizeArray::as_mut_slice(&mut array).len(), 64);
|
|
assert_eq!(FixedSizeArray::as_mut_slice(&mut zero_sized).len(), 64);
|
|
assert_eq!(FixedSizeArray::as_mut_slice(&mut empty_array).len(), 0);
|
|
assert_eq!(FixedSizeArray::as_mut_slice(&mut empty_zero_sized).len(), 0);
|
|
}
|