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C++ vector empty() function

❮ Vector Functions


Example

Find out if a vector is empty or not:

vector<string> cars;
cout << cars.empty() << "\n";

cars = {"Volvo", "BMW", "Ford", "Mazda"};
cout << cars.empty();
Try it Yourself »

Definition and Usage

The empty() function checks whether a vector is empty or not.

It returns 1 if the vector is empty and 0 otherwise.

Syntax

vector.empty();

Parameter Values

None.

Technical Details

Returns: A boolean value:
  • 0 - if the vector is not empty
  • 1 - if the vector is empty

Related Pages

Read more about vectors in our Vector Tutorial.

Read more about booleans in our Booleans Tutorial.


❮ Vector Functions

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