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