Remove len argument from RawVec::reserve_for_push because it's always equal to capacity. Also make Vec::insert use reserve_for_push.

1 files changed, 2 insertions, 2 deletions

diff --git a/library/alloc/src/vec/mod.rs b/library/alloc/src/vec/mod.rs
index 8ca8046dac5..5f4c45d578d 100644
--- a/library/alloc/src/vec/mod.rs
+++ b/library/alloc/src/vec/mod.rs
@@ -1547,7 +1547,7 @@ impl<T, A: Allocator> Vec<T, A> {
 
         // space for the new element
         if len == self.buf.capacity() {
-            self.reserve(1);
+            self.buf.reserve_for_push();
         }
 
         unsafe {
@@ -1967,7 +1967,7 @@ impl<T, A: Allocator> Vec<T, A> {
         // 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.capacity() {
-            self.buf.reserve_for_push(self.len);
+            self.buf.reserve_for_push();
         }
         unsafe {
             let end = self.as_mut_ptr().add(self.len);