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exercise more of the in-place pipeline in the bench

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This commit is contained in:
The8472 2019-11-21 01:01:35 +01:00
parent a9c78e371e
commit a596ff36b5
1 changed files with 8 additions and 1 deletions
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9
library/alloc/benches/vec.rs
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@ -513,7 +513,14 @@ impl Drop for Droppable {
#[bench] #[bench]
fn bench_in_place_collect_droppable(b: &mut test::Bencher) { fn bench_in_place_collect_droppable(b: &mut test::Bencher) {
let v: Vec<Droppable> = std::iter::repeat_with(|| Droppable(0)).take(1000).collect(); let v: Vec<Droppable> = std::iter::repeat_with(|| Droppable(0)).take(1000).collect();
b.iter(|| v.clone().into_iter().skip(100).collect::<Vec<_>>()) b.iter(|| {
v.clone()
.into_iter()
.skip(100)
.enumerate()
.map(|(i, e)| Droppable(i ^ e.0))
.collect::<Vec<_>>()
})
} }
#[bench] #[bench]