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