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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /library/core/benches/any.rs | |
parent | Initial commit. (diff) | |
download | rustc-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 'library/core/benches/any.rs')
-rw-r--r-- | library/core/benches/any.rs | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/library/core/benches/any.rs b/library/core/benches/any.rs new file mode 100644 index 000000000..53099b782 --- /dev/null +++ b/library/core/benches/any.rs @@ -0,0 +1,12 @@ +use core::any::*; +use test::{black_box, Bencher}; + +#[bench] +fn bench_downcast_ref(b: &mut Bencher) { + b.iter(|| { + let mut x = 0; + let mut y = &mut x as &mut dyn Any; + black_box(&mut y); + black_box(y.downcast_ref::<isize>() == Some(&0)); + }); +} |