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40 lines
1.3 KiB
40 lines
1.3 KiB
// Copyright 2015-2016 Brian Smith.
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
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// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
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// SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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// OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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// CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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//! Polyfills for functionality that will (hopefully) be added to Rust's
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//! standard library soon.
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#[inline(always)]
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pub const fn u64_from_usize(x: usize) -> u64 {
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x as u64
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}
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pub fn usize_from_u32(x: u32) -> usize {
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x as usize
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}
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pub mod slice {
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// https://github.com/rust-lang/rust/issues/27750
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// https://internals.rust-lang.org/t/stabilizing-basic-functions-on-arrays-and-slices/2868
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#[inline(always)]
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pub fn fill<T>(dest: &mut [T], value: T)
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where
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T: Copy,
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{
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for d in dest {
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*d = value;
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}
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}
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}
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