std::queue<T,Container>::size
From cppreference.com
| size_type size() const; |
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Returns the number of elements in the underlying container, that is, c.size().
Parameters
(none)
Return value
The number of elements in the container.
Complexity
Constant.
Example
Run this code
#include <algorithm> #include <iostream> #include <queue> int main() { std::queue<int> container; std::cout << "Initially, container.size(): " << container.size() << '\n'; for (int i = 0; i < 7; ++i) container.push(i); std::cout << "After adding elements, container.size(): " << container.size() << '\n'; }
Output:
Initially, container.size(): 0 After adding elements, container.size(): 7
See also
| checks whether the underlying container is empty (public member function) |