priority queue clear method

Question

How do I delete all elements from a priority queue? That means how do I destroy a priority queue? advanced thanks for your answer. Is there any clear- or erase-like method

Answer 1

As any C++ STL reference will show you, the STL Priority Queue class does not have a function like 'clear' or 'erase'. http://www.cplusplus.com/reference/stl/priority_queue/

It is a container class, and as such, a very simple destructor is generated by the compiler (in most cases). If your priority queue uses only locally-allocated information in its nodes, then this should work fine for clearing out the memory.

However, if you have dynamically allocated memory for the information in your priority queue, you will need to manually create a 'clear'-like function.

Hope this helps!