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Make spec_extend use for_each()

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Nathan West 2018-10-02 12:35:25 -07:00 • committed by GitHub
parent 1c5e9c68ea
commit ec59188025
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1 changed files with 2 additions and 2 deletions
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4
src/liballoc/vec.rs
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@ -1822,12 +1822,12 @@ impl<T, I> SpecExtend<T, I> for Vec<T>
unsafe { unsafe {
let mut ptr = self.as_mut_ptr().add(self.len()); let mut ptr = self.as_mut_ptr().add(self.len());
let mut local_len = SetLenOnDrop::new(&mut 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::write(ptr, element);
ptr = ptr.offset(1); ptr = ptr.offset(1);
// NB can't overflow since we would have had to alloc the address space // NB can't overflow since we would have had to alloc the address space
local_len.increment_len(1); local_len.increment_len(1);
} });
} }
} else { } else {
self.extend_desugared(iterator) self.extend_desugared(iterator)