diff options
Diffstat (limited to 'vendor/itoa/benches/bench.rs')
-rw-r--r-- | vendor/itoa/benches/bench.rs | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/vendor/itoa/benches/bench.rs b/vendor/itoa/benches/bench.rs new file mode 100644 index 0000000..acd2a0c --- /dev/null +++ b/vendor/itoa/benches/bench.rs @@ -0,0 +1,55 @@ +#![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()) +} |