vecdeque grow_by(old_cap)

gnzlbg · gnzlbg · commit 9212e48dd2fb · 2017-10-22T09:04:40.000+02:00
diff --git a/src/liballoc/vec_deque.rs b/src/liballoc/vec_deque.rs
@@ -1755,7 +1755,7 @@ impl<T> VecDeque<T> {
     fn grow_if_necessary(&mut self) {
         if self.is_full() {
             let old_cap = self.cap();
-            self.buf.grow_by(1);
+            self.buf.grow_by(old_cap);
             unsafe {
                 self.handle_cap_increase(old_cap);
             }

Original file line number	Diff line number	Diff line change
`@@ -1755,7 +1755,7 @@ impl<T> VecDeque<T> {`
`1755`	`1755`	`fn grow_if_necessary(&mut self) {`
`1756`	`1756`	`if self.is_full() {`
`1757`	`1757`	`let old_cap = self.cap();`
`1758`		`- self.buf.grow_by(1);`
	`1758`	`+ self.buf.grow_by(old_cap);`
`1759`	`1759`	`unsafe {`
`1760`	`1760`	`self.handle_cap_increase(old_cap);`
`1761`	`1761`	`}`