commit 0d4a1367994672697d29aedc711691c9a1310fd6
author David Tolnay <dtolnay@gmail.com> Fri Aug 27 12:12:29 2021 -0700
committer David Tolnay <dtolnay@gmail.com> Fri Aug 27 12:21:55 2021 -0700
tree b7d906a4dc7430d5f0190f189a90304d6bae7925
parent 6acc6c7803e0018f43724cbd04934c9cfa793177

Skip Vec::reserve call more often in reserve_total

src/rust_vec.rs

diff --git a/src/rust_vec.rs b/src/rust_vec.rs
index b2df5f3..ce79200 100644
--- a/src/rust_vec.rs
+++ b/src/rust_vec.rs
@@ -58,9 +58,9 @@
 
     pub fn reserve_total(&mut self, new_cap: usize) {
         let vec = self.as_mut_vec();
-        let len = vec.len();
-        if new_cap > len {
-            vec.reserve(new_cap - len);
+        if new_cap > vec.capacity() {
+            let additional = new_cap - vec.len();
+            vec.reserve(additional);
         }
     }