| priority_queue::size | public member function |
size_type size ( ) const; |
Return size
Returns the number of elements in the priority_queue.
This member function effectively calls the member with the same name in the underlying container object.
Parameters
noneReturn Value
The number of elements that conform the priority_queue's container content.Member type size_type is an unsigned integral type.
Example
// priority_queue::size #include <iostream> #include <queue> using namespace std; int main () { priority_queue<int> myints; cout << "0. size: " << (int) myints.size() << endl; for (int i=0; i<5; i++) myints.push(i); cout << "1. size: " << (int) myints.size() << endl; myints.pop(); cout << "2. size: " << (int) myints.size() << endl; return 0; } |
Output:
0. size: 0 |
Complexity
Constant.See also
| priority_queue::empty | Test whether container is empty (public member function) |