std::queue<T,Container>::size - cppreference.com (original) (raw)

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

[edit] Parameters

(none)

[edit] Return value

The number of elements in the container adaptor.

[edit] Complexity

Constant.

[edit] Example

#include #include   int main() { std::queue 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] | | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | | returns the size of a container or array (function template) [edit] |