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Implement
FixedSizeArray
for all fixed size arrays
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.
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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::array::FixedSizeArray; | ||
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#[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]; | ||
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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); | ||
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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); | ||
} |
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