C++ queue empty() Function
Example
Find out if a queue is empty or not:
queue<string> cars;
cout << cars.empty() << "\n";
cars.push("Volvo");
cout << cars.empty();Definition and Usage
The empty() function checks whether a queue is empty or not.
It returns 1 (true) if the queue has no elements, and 0 (false) otherwise.
The empty function is defined in the <queue> header file.
Syntax
queue.empty();Parameter Values
None.
Technical Details
| Returns: | A bool value: true (1) if the queue is empty, and false (0) if it is not. |
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Related Pages
Read more about queues in our Queues Tutorial.
