In C, Boolean is a data type that contains two types of values, i.e., 0 and 1. Basically, the bool type value represents two types of behavior, either true or false. Here, '0' represents false value, while '1' represents true value.
In C Boolean, '0' is stored as 0, and another integer is stored as 1. We do not require to use any header file to use the Boolean data type in C++, but in C, we have to use the header file, i.e., stdbool.h. If we do not use the header file, then the program will not compile.
Syntax
bool variable_name;
In the above syntax, bool is the data type of the variable, and variable_name is the name of the variable.
Let's understand through an example
#include <stdio.h> #include<stdbool.h>
int main()
{
bool x=false; // variable initialization.
if(x==true) // conditional statements
{
printf("The value of x is true");
}
else
printf("The value of x is FALSE");
return 0;
}
In the above code, we have used <stdbool.h> header file so that we can use the bool type variable in our program. After the declaration of the header file, we create the bool type variable 'x' and assigns a 'false' value to it. Then, we add the conditional statements, i.e., if..else, to determine whether the value of 'x' is true or not.
Output is
The value of x is FALSE
