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|
#![feature(test)]
extern crate dtoa;
extern crate test;
macro_rules! benches {
($($name:ident($value:expr),)*) => {
mod bench_dtoa {
use test::{Bencher, black_box};
$(
#[bench]
fn $name(b: &mut Bencher) {
use dtoa;
let mut buf = Vec::with_capacity(20);
b.iter(|| {
buf.clear();
dtoa::write(&mut buf, black_box($value)).unwrap()
});
}
)*
}
mod bench_fmt {
use test::{Bencher, black_box};
$(
#[bench]
fn $name(b: &mut Bencher) {
use std::io::Write;
let mut buf = Vec::with_capacity(20);
b.iter(|| {
buf.clear();
write!(&mut buf, "{}", black_box($value)).unwrap()
});
}
)*
}
}
}
benches!(
bench_0_f64(0f64),
bench_short_f64(0.1234f64),
bench_e_f64(2.718281828459045f64),
bench_max_f64(::std::f64::MAX),
bench_0_f32(0f32),
bench_short_f32(0.1234f32),
bench_e_f32(2.718281828459045f32),
bench_max_f32(::std::f32::MAX),
);
|
