Relational operator

<, >, <=, >=, ==, !=

It is also called comparison operator. It is used to compare two variable or values. It is used to make conditions.

Relational operators always return true or false.

Syntax

left-operan operator right-operand

NOTE: turbo c++ does not support bool data type therefore you can use int data type to hold 0 or 1.

<

It is called less than operator. It compare two variable or values.

Example: p = m < n;

In this example, If m is less than n then return true and assign to p otherwise it return false and assign to p.

>

It is called greater than operator. It compare two variable or values.

Example: p = m > n;

In this example, If m is greater than n then return true and assign to p otherwise it return false and assign to p.

<=

It is called less than or equal operator. It compare two variable or values.

Example: p = m <= n;

In this example, If m is less than or equal to n then return true and assign to p otherwise it return false and assign to p.

>=

It is called greater than or equal operator. It compare two variable or values.

Example: p = m >= n;

In this example, If m is greater than or equal to n then return true and assign to p otherwise it return false and assign to p.

==

It is called equal to operator. It compare two variable or values.

Example: p = m == n;

In this example, If m is equal to n then return true and assign to p otherwise it return false and assign to p.

!=

It is called not equal to operator. It compare two variable or values.

Example: p = m != n;

In this example, If m is not equal to n then return true and assign to p otherwise it return false and assign to p.

Program

#include <stdio.h> 
#include <conio.h> 
void main(){ 
 int m;
 int n;
 int p;
 clrscr();
 printf("Enter value of m: ");
 scanf("%d",&m);
 printf("\n Enter value of n: ");
 scanf("%d",&n);
 p = m < n; /* in program output we can see 1 for true and 0 for false */
 printf("\n value of m = %d",m);
 printf("\n value of n = %d",n);
 printf("\n value of p = %d",p);
 getch();
}

See Output

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