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