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Switch Vec from doubling size on growth to using RawVec's reserve #50739

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Merged
merged 1 commit into from
May 21, 2018
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Switch Vec from doubling size on growth to using RawVec's reserve #50739

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4 changes: 2 additions & 2 deletions src/liballoc/vec.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -840,7 +840,7 @@ impl<T> Vec<T> {

// space for the new element
if len == self.buf.cap() {
self.buf.double();
self.reserve(1);
}

unsafe {
Expand Down Expand Up @@ -1060,7 +1060,7 @@ impl<T> Vec<T> {
// This will panic or abort if we would allocate > isize::MAX bytes
// or if the length increment would overflow for zero-sized types.
if self.len == self.buf.cap() {
self.buf.double();
self.reserve(1);
}
unsafe {
let end = self.as_mut_ptr().offset(self.len as isize);
Expand Down