Commit d071989a authored by Dominik Charousset's avatar Dominik Charousset

Swap vectors in behavior stack if possible

parent 29fa5512
...@@ -36,9 +36,13 @@ void behavior_stack::pop_back() { ...@@ -36,9 +36,13 @@ void behavior_stack::pop_back() {
void behavior_stack::clear() { void behavior_stack::clear() {
if (! elements_.empty()) { if (! elements_.empty()) {
std::move(elements_.begin(), elements_.end(), if (erased_elements_.empty()) {
std::back_inserter(erased_elements_)); elements_.swap(erased_elements_);
elements_.clear(); } else {
std::move(elements_.begin(), elements_.end(),
std::back_inserter(erased_elements_));
elements_.clear();
}
} }
} }
......
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