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C++ Tutorial

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C++ bool Keyword

❮ C++ Keywords

Example

A boolean data type with true or false values:

bool isCodingFun = true;
bool isFishTasty = false;
cout << isCodingFun;  // Outputs 1 (true)
cout << isFishTasty;  // Outputs 0 (false)

Try it Yourself »

Definition and Usage

The bool keyword is a data type that can only take the values true or false.

Boolean values are mostly used for conditional testing (read the C++ Booleans Tutorial for more information).

Related Pages

Read more about data types in our C++ Data Types Tutorial.

Read more about booleans in our C++ Booleans Tutorial.

❮ C++ Keywords