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| author | Pietro Albini <pietro@pietroalbini.org> | 2018-10-04 12:20:08 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-10-04 12:20:08 +0200 |
| commit | c215c1927af2eee46e7c36a4fdd7e2871a3f18e2 (patch) | |
| tree | 86cd6718d714a0f5788254d355a55f9e044c5eca /src/liballoc/vec.rs | |
| parent | bc4f86909ea5e08a9114c70eef29942a4ea2c459 (diff) | |
| parent | ec59188025582fd91ab868206cfb3f3f05e27ade (diff) | |
| download | rust-c215c1927af2eee46e7c36a4fdd7e2871a3f18e2.tar.gz rust-c215c1927af2eee46e7c36a4fdd7e2871a3f18e2.zip | |
Rollup merge of #54761 - Lucretiel:patch-1, r=cramertj
Make spec_extend use for_each() `for_each` will use an iterator's own implementation of `try_fold`, which I understand to be generally preferable (because nested iterator adapter's will use each other's `try_fold` and be designed for the specific adaptation in a way that promotes performance and inlining.
Diffstat (limited to 'src/liballoc/vec.rs')
| -rw-r--r-- | src/liballoc/vec.rs | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/liballoc/vec.rs b/src/liballoc/vec.rs index e845438c0a8..2bc037e3fee 100644 --- a/src/liballoc/vec.rs +++ b/src/liballoc/vec.rs @@ -1822,12 +1822,12 @@ impl<T, I> SpecExtend<T, I> for Vec<T> unsafe { let mut ptr = self.as_mut_ptr().add(self.len()); let mut local_len = SetLenOnDrop::new(&mut self.len); - for element in iterator { + iterator.for_each(move |element| { ptr::write(ptr, element); ptr = ptr.offset(1); // NB can't overflow since we would have had to alloc the address space local_len.increment_len(1); - } + }); } } else { self.extend_desugared(iterator) |