C Language Boolean Using stdbool.h
Example
C99
Using the system header file stdbool.h allows you to use bool as a Boolean data type. true evaluates to 1 and false evaluates to 0.
#include <stdio.h>
#include <stdbool.h>
int main(void) {
bool x = true; /* equivalent to bool x = 1; */
bool y = false; /* equivalent to bool y = 0; */
if (x) /* Functionally equivalent to if (x != 0) or if (x != false) */
{
puts("This will print!");
}
if (!y) /* Functionally equivalent to if (y == 0) or if (y == false) */
{
puts("This will also print!");
}
}
bool is just a nice spelling for the data type _Bool. It has special rules when numbers or pointers are converted to it.
