C – Relational Operators

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Relational operators in C:

    • Relational operators are used to find the relation between two variables. i.e. to compare the values of two variables in a C program.
S.no
Operators
Example 
Description
1
>
x > y
x is greater than y
2
<
x < y
x is less than y
3
>=
x >= y
x is greater than or equal to y
4
<=
x <= y
x is less than or equal to y
5
==
x == y
x is equal to y
6
!=
x != y
x is not equal to y

Example program for relational operators in C:

    • In this program, relational operator (==) is used to compare 2 values whether they are equal are not.
    • If both values are equal, output is displayed as ” values are equal”. Else, output is displayed as “values are not equal”.
    • Note : double equal sign (==) should be used to compare 2 values. We should not single equal sign (=).
#include <stdio.h>
int main()
{
    int m=40,n=20;
    if (m == n) 
    {
       printf("m and n are equal");
    }
    else 
    {
       printf("m and n are not equal");
    }
}

Output:

m and n are not equal

……

 Continue on types of C operators:

    • Click on each operators name below to display example programs.
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Types of Operators
             Description              
1
Arithmetic_operators These are used to perform mathematical calculations like addition, subtraction, multiplication, division and modulus
2
Assignment_operators These are used to assign the values for the variables in C programs.
3
Relational_operators These operators are used to compare the value of two variables.
4
Logical operators These operators are used to perform logical operations on the given two variables.
5
Bit wise operators These operators are used to perform bit operations on given two variables.
6
Conditional (ternary) operators Conditional operators return one value if condition is true and returns another value is condition is false.
7
Increment / decrement operators These operators are used to either increase or decrease the value of the variable by one.
8
Special operators &, *, sizeof( ) and ternary operators

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