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std::priority_queue<T,Container,Compare>::size

From cppreference.com
 
 
 
 
size_type size() const;

Returns the number of elements in the container adaptor. Equivalent to return c.size().

Contents

[edit] Parameters

(none)

[edit] Return value

The number of elements in the container adaptor.

[edit] Complexity

Constant.

[edit] Example

#include <algorithm>
#include <cassert>
#include <queue>
 
int main()
{
    std::priority_queue<int> queue;
 
    assert(queue.size() == 0);
 
    const int count = 8;
 
    for (int i = 0; i != count; ++i)
        queue.push(i);
 
    assert(queue.size() == count);
}

[edit] See also

checks whether the container adaptor is empty
(public member function) [edit]
(C++17)(C++20)
returns the size of a container or array
(function template) [edit]