62 lines
1.5 KiB
Rust
62 lines
1.5 KiB
Rust
#![feature(test)]
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#![allow(non_snake_case)]
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#![allow(clippy::cast_lossless)]
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extern crate test;
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macro_rules! benches {
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(
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$(
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$(#[$attr:meta])*
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$name:ident($value:expr)
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),*
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) => {
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mod bench_itoa_format {
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use test::{Bencher, black_box};
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$(
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$(#[$attr])*
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#[bench]
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fn $name(b: &mut Bencher) {
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let mut buffer = itoa::Buffer::new();
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b.iter(|| {
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let printed = buffer.format(black_box($value));
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black_box(printed);
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});
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}
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)*
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}
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mod bench_std_fmt {
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use test::{Bencher, black_box};
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$(
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$(#[$attr])*
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#[bench]
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fn $name(b: &mut Bencher) {
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use std::io::Write;
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let mut buf = Vec::with_capacity(40);
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b.iter(|| {
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buf.clear();
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write!(&mut buf, "{}", black_box($value)).unwrap();
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black_box(&buf);
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});
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}
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)*
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}
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}
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}
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benches! {
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bench_u64_0(0u64),
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bench_u64_half(<u32>::max_value() as u64),
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bench_u64_max(<u64>::max_value()),
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bench_i16_0(0i16),
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bench_i16_min(<i16>::min_value()),
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bench_u128_0(0u128),
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bench_u128_max(<u128>::max_value())
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}
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