bool empty() const; |
Checks if the underlying container has no elements, i.e. whether c.empty().
(none).
true if the underlying container is empty, false otherwise.
Constant.
| returns the number of elements (public member function) |
© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
http://en.cppreference.com/w/cpp/container/priority_queue/empty