diff options
Diffstat (limited to 'library/core/benches/char/methods.rs')
| -rw-r--r-- | library/core/benches/char/methods.rs | 40 |
1 files changed, 26 insertions, 14 deletions
diff --git a/library/core/benches/char/methods.rs b/library/core/benches/char/methods.rs index 9408f83c3..5d4df1ac8 100644 --- a/library/core/benches/char/methods.rs +++ b/library/core/benches/char/methods.rs @@ -1,26 +1,26 @@ -use test::Bencher; +use test::{black_box, Bencher}; const CHARS: [char; 9] = ['0', 'x', '2', '5', 'A', 'f', '7', '8', '9']; const RADIX: [u32; 5] = [2, 8, 10, 16, 32]; #[bench] fn bench_to_digit_radix_2(b: &mut Bencher) { - b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| c.to_digit(2)).min()) + b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| black_box(c).to_digit(2)).min()) } #[bench] fn bench_to_digit_radix_10(b: &mut Bencher) { - b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| c.to_digit(10)).min()) + b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| black_box(c).to_digit(10)).min()) } #[bench] fn bench_to_digit_radix_16(b: &mut Bencher) { - b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| c.to_digit(16)).min()) + b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| black_box(c).to_digit(16)).min()) } #[bench] fn bench_to_digit_radix_36(b: &mut Bencher) { - b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| c.to_digit(36)).min()) + b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| black_box(c).to_digit(36)).min()) } #[bench] @@ -31,47 +31,59 @@ fn bench_to_digit_radix_var(b: &mut Bencher) { .cycle() .zip(RADIX.iter().cycle()) .take(10_000) - .map(|(c, radix)| c.to_digit(*radix)) + .map(|(c, radix)| black_box(c).to_digit(*radix)) .min() }) } #[bench] fn bench_to_ascii_uppercase(b: &mut Bencher) { - b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| c.to_ascii_uppercase()).min()) + b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| black_box(c).to_ascii_uppercase()).min()) } #[bench] fn bench_to_ascii_lowercase(b: &mut Bencher) { - b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| c.to_ascii_lowercase()).min()) + b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| black_box(c).to_ascii_lowercase()).min()) } #[bench] fn bench_ascii_mix_to_uppercase(b: &mut Bencher) { - b.iter(|| (0..=255).cycle().take(10_000).map(|b| char::from(b).to_uppercase()).count()) + b.iter(|| { + (0..=255).cycle().take(10_000).map(|b| black_box(char::from(b)).to_uppercase()).count() + }) } #[bench] fn bench_ascii_mix_to_lowercase(b: &mut Bencher) { - b.iter(|| (0..=255).cycle().take(10_000).map(|b| char::from(b).to_lowercase()).count()) + b.iter(|| { + (0..=255).cycle().take(10_000).map(|b| black_box(char::from(b)).to_lowercase()).count() + }) } #[bench] fn bench_ascii_char_to_uppercase(b: &mut Bencher) { - b.iter(|| (0..=127).cycle().take(10_000).map(|b| char::from(b).to_uppercase()).count()) + b.iter(|| { + (0..=127).cycle().take(10_000).map(|b| black_box(char::from(b)).to_uppercase()).count() + }) } #[bench] fn bench_ascii_char_to_lowercase(b: &mut Bencher) { - b.iter(|| (0..=127).cycle().take(10_000).map(|b| char::from(b).to_lowercase()).count()) + b.iter(|| { + (0..=127).cycle().take(10_000).map(|b| black_box(char::from(b)).to_lowercase()).count() + }) } #[bench] fn bench_non_ascii_char_to_uppercase(b: &mut Bencher) { - b.iter(|| (128..=255).cycle().take(10_000).map(|b| char::from(b).to_uppercase()).count()) + b.iter(|| { + (128..=255).cycle().take(10_000).map(|b| black_box(char::from(b)).to_uppercase()).count() + }) } #[bench] fn bench_non_ascii_char_to_lowercase(b: &mut Bencher) { - b.iter(|| (128..=255).cycle().take(10_000).map(|b| char::from(b).to_lowercase()).count()) + b.iter(|| { + (128..=255).cycle().take(10_000).map(|b| black_box(char::from(b)).to_lowercase()).count() + }) } |