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Merge pull request #550 from infinityb/fix-buffer-underflow

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fix(buffer): check capacity before resizing
This commit is contained in:
Sean McArthur
2015-05-27 09:23:09 -07:00
parent 9dc85279ac b1686d1b22
commit ac03b5e23b
1 changed files with 1 additions and 1 deletions
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2
src/buffer.rs
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@@ -67,7 +67,7 @@ impl<R: Read> BufReader<R> {
#[inline] #[inline]
fn maybe_reserve(&mut self) { fn maybe_reserve(&mut self) {
let cap = self.buf.capacity(); let cap = self.buf.capacity();
if self.cap == cap { if self.cap == cap && cap < MAX_BUFFER_SIZE {
self.buf.reserve(cmp::min(cap * 4, MAX_BUFFER_SIZE) - cap); self.buf.reserve(cmp::min(cap * 4, MAX_BUFFER_SIZE) - cap);
let new = self.buf.capacity() - self.buf.len(); let new = self.buf.capacity() - self.buf.len();
trace!("reserved {}", new); trace!("reserved {}", new);