diff options
| -rw-r--r-- | library/alloc/benches/vec.rs | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/library/alloc/benches/vec.rs b/library/alloc/benches/vec.rs index 2eee988dccc..6a3d7046126 100644 --- a/library/alloc/benches/vec.rs +++ b/library/alloc/benches/vec.rs @@ -440,10 +440,11 @@ macro_rules! bench_in_place { #[bench] fn $fname(b: &mut Bencher) { b.iter(|| { - let src: Vec<$type> = vec![$init; $count]; - black_box(src.into_iter() + let src: Vec<$type> = black_box(vec![$init; $count]); + let mut sink = src.into_iter() .enumerate() - .map(|(idx, e)| { (idx as $type) ^ e }).collect::<Vec<$type>>()) + .map(|(idx, e)| { (idx as $type) ^ e }).collect::<Vec<$type>>(); + black_box(sink.as_mut_ptr()) }); } )+ |