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#![cfg_attr(feature = "cargo-clippy", allow(cast_lossless))]
#![feature(test)]
#![allow(non_snake_case)]
extern crate itoa;
extern crate test;
macro_rules! benches {
(
$(
$(#[$attr:meta])*
$name:ident($value:expr)
),*
) => {
mod bench_itoa_write {
use test::{Bencher, black_box};
$(
$(#[$attr])*
#[bench]
fn $name(b: &mut Bencher) {
use itoa;
let mut buf = Vec::with_capacity(40);
b.iter(|| {
buf.clear();
itoa::write(&mut buf, black_box($value)).unwrap()
});
}
)*
}
mod bench_itoa_fmt {
use test::{Bencher, black_box};
$(
$(#[$attr])*
#[bench]
fn $name(b: &mut Bencher) {
use itoa;
let mut buf = String::with_capacity(40);
b.iter(|| {
buf.clear();
itoa::fmt(&mut buf, black_box($value)).unwrap()
});
}
)*
}
mod bench_std_fmt {
use test::{Bencher, black_box};
$(
$(#[$attr])*
#[bench]
fn $name(b: &mut Bencher) {
use std::io::Write;
let mut buf = Vec::with_capacity(40);
b.iter(|| {
buf.clear();
write!(&mut buf, "{}", black_box($value)).unwrap()
});
}
)*
}
}
}
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()),
#[cfg(feature = "i128")]
bench_u128_0(0u128),
#[cfg(feature = "i128")]
bench_u128_max(<u128>::max_value())
}
|
