Relational operators in C are used to compare two values or variables. These operators return a boolean value (1 for true and 0 for false) based on the comparison.

List of Relational Operators

Operator	Description	Example	Result
==	Equal to	a == b	True if a is equal to b
!=	Not equal to	a != b	True if a is not equal to b
>	Greater than	a > b	True if a is greater than b
<	Less than	a < b	True if a is less than b
>=	Greater than or equal to	a >= b	True if a is greater than or equal to b
<=	Less than or equal to	a <= b	True if a is less than or equal to b

Example Usage:

#include <stdio.h>

int main() {

    int a = 10;

    int b = 20;

    printf(“a == b: %d\n”, a == b);  // False, outputs 0

    printf(“a != b: %d\n”, a != b);  // True, outputs 1

    printf(“a > b: %d\n”, a > b);    // False, outputs 0

    printf(“a < b: %d\n”, a < b);    // True, outputs 1

    printf(“a >= b: %d\n”, a >= b);  // False, outputs 0

    printf(“a <= b: %d\n”, a <= b);  // True, outputs 1

    return 0;

}

Output:

a == b: 0

a != b: 1

a > b: 0

a < b: 1

a >= b: 0

a <= b: 1

Relational operators are critical for decision-making in conditional statements such as if, while, and for loops in C programming