bjoernager/rust
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Remove unneeded copy

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This commit is contained in:
Jacob Kiesel 2017-09-05 15:32:02 -06:00 • committed by GitHub
parent 398aaffc94
commit 0e2427cd3c
1 changed files with 2 additions and 1 deletions
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3
src/liballoc/vec.rs
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@ -2691,7 +2691,8 @@ impl<'a, T, F> Iterator for DrainFilter<'a, T, F>
self.del += 1;
return Some(ptr::read(&v[i]));
} else if self.del > 0 {
v.swap(i - self.del, i);
let del = self.del;
ptr::copy_nonoverlapping(self.vec.as_ptr().offset(i), self.vec.as_mut_ptr().offset(i - del), 1);
}
}
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