C++ Boolean Data Type

In C++, boolean values are used to store true or false conditions. They help programmers make decisions and control program flow.

Declaring a Boolean Variable

To define a boolean variable, use the bool keyword. A boolean can only hold two possible values: true or false.

Example

#include <iostream>
using namespace std;

int main() {
bool isMotorcycleFast = true;
bool isHelmetOptional = false;

cout << isMotorcycleFast;  // Outputs 1 (true)
cout << isHelmetOptional;  // Outputs 0 (false)
return 0;
}

#include <iostream>

using namespace std;

​

int main() {

bool isMotorcycleFast = true;

bool isHelmetOptional = false;

​

cout << isMotorcycleFast;  // Outputs 1 (true)

cout << isHelmetOptional;  // Outputs 0 (false)

return 0;

}

​

​

Boolean Values in C++

• true is internally represented as 1.
• false is internally represented as 0.

This means boolean values can also be used in logical operations and conditional statements.