2x speedup on routing LS

2012-01-17 10:10:08 +00:00
parent c79d678107
commit 407f767d98
1 changed files with 3 additions and 1 deletions
--- a/constraint_solver/constraint_solver.h
+++ b/constraint_solver/constraint_solver.h
@@ -4456,7 +4456,9 @@ template <class V, class E> class AssignmentContainer {
  }
  void Clear() {
    elements_.clear();
-    elements_map_.clear();
+    if (!elements_map_.empty()) {
+      elements_map_.clear();
+    }
  }
  bool Empty() const {
    return elements_.empty();