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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /vendor/ryu/benches
parentInitial commit. (diff)
downloadrustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz
rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/ryu/benches')
-rw-r--r--vendor/ryu/benches/bench.rs62
1 files changed, 62 insertions, 0 deletions
diff --git a/vendor/ryu/benches/bench.rs b/vendor/ryu/benches/bench.rs
new file mode 100644
index 000000000..fbc1b7067
--- /dev/null
+++ b/vendor/ryu/benches/bench.rs
@@ -0,0 +1,62 @@
+// cargo bench
+
+#![feature(test)]
+#![allow(
+ clippy::approx_constant,
+ clippy::excessive_precision,
+ clippy::unreadable_literal
+)]
+
+extern crate test;
+
+use std::io::Write;
+use std::{f32, f64};
+use test::{black_box, Bencher};
+
+macro_rules! benches {
+ ($($name:ident($value:expr),)*) => {
+ mod bench_ryu {
+ use super::*;
+ $(
+ #[bench]
+ fn $name(b: &mut Bencher) {
+ let mut buf = ryu::Buffer::new();
+
+ b.iter(move || {
+ let value = black_box($value);
+ let formatted = buf.format_finite(value);
+ black_box(formatted);
+ });
+ }
+ )*
+ }
+
+ mod bench_std_fmt {
+ use super::*;
+ $(
+ #[bench]
+ fn $name(b: &mut Bencher) {
+ let mut buf = Vec::with_capacity(20);
+
+ b.iter(|| {
+ buf.clear();
+ let value = black_box($value);
+ write!(&mut buf, "{}", value).unwrap();
+ black_box(buf.as_slice());
+ });
+ }
+ )*
+ }
+ };
+}
+
+benches! {
+ bench_0_f64(0f64),
+ bench_short_f64(0.1234f64),
+ bench_e_f64(2.718281828459045f64),
+ bench_max_f64(f64::MAX),
+ bench_0_f32(0f32),
+ bench_short_f32(0.1234f32),
+ bench_e_f32(2.718281828459045f32),
+ bench_max_f32(f32::MAX),
+}