An operator is a symbol that tells the compiler to perform specific mathematical or logical operation.
C language provides the following types of operators (based on operators) −
- Arithmetic Operators
- Increment & Decrement
- Relational Operators
- Logical Operators
- Bitwise Operators
- Assignment Operators
- Misc Operators
| Operator | Name | Category | syntax | Example (a=10,b=3) |
| + | Addtion | B | a+b | 13 |
| - | subtraction | B | a-b | 7 |
| * | multiplication | B | a*b | 30 |
| / | division | B | a/b | 3 |
| % | Modulus | B | a%b | 1 |
/*
write a C program for All Arithmatic Operators:
Expected output:
================
Enter any two integers
10
3
The sum of 10 and 3 is : 13
The subtraction of 10 and 3 is : 7
The multiplication of 10 and 3 is : 30
The division of 10 and 3 is : 3
The modulus of 10 and 3 is : 1
*/
#include < stdio.h >
int main()
{
int num1, num2 ; // which stores user given values
printf("Enter any two integers");
scanf("%d%d", &num1, &num2);
printf("\n The sum of %d and %d is : %d",num1 ,num2, (num1+num2));
printf("\n The subtraction of %d and %d is : %d",num1 ,num2, (num1-num2));
printf("\n The multiplication of %d and %d is : %d",num1 ,num2, (num1*num2));
printf("\n The division of %d and %d is : %d",num1 ,num2, (num1/num2)); // which return quotient
printf("\n The modulus of %d and %d is : %d",num1 ,num2, (num1%num2)); // which return remainder
return 0;
}
Try it Yourself
| Operator | Name | Category | Syntax |
Example (a=10 , b-20) |
| < | Less than | B | a<b |
1(true) |
| <= | lesstha or equal | B | a<=b |
1(true) |
| > | greater than | B | a>b |
0 (false) |
| >= | greater than or equal | B | a>=b |
0 (false) |
| == | equal | B | a==b |
0 (false) |
| != | not equals | B | a!=b | 1 (true) |
/*
write a C program for All Arithmatic Operators:
Expected output:
================
Enter any two integers
10
20
10 < 20 : 1
10 <= 20 : 1
10 > 20 : 0
10 >= 20 : 0
10 == 20 : 0
10 != 20 : 1
*/
#include<stdio.h >
int main()
{
int num1, num2 ;
printf("Enter any two integers");
scanf("%d%d",& num1,& num2);
printf("\n %d < %d : %d ",num1 ,num2, (num1 < num2));
printf("\n %d <= %d : %d",num1 ,num2, (num1 &le= num2));
printf("\n %d > %d : %d",num1 ,num2, (num1 > num2));
printf("\n %d >= %d : %d",num1 ,num2, (num1 >= num2));
printf("\n %d == %d : %d",num1 ,num2, (num1 == num2));
printf("\n %d != %d : %d",num1 ,num2, (num1 != num2));
return 0;
}
Try it Yourself
| Operator | Name | Category | syntax | Example (a=10,b=3) |
| && | Logical And | B | (a>b) &&(a<b) | 0 |
| || | Logical Or | B | (a>b) || (a<b) | 1 |
| ! | Logical Not | U | !(a>b) | 0 |
/*
Write a C program for Logical operators:
Expected Output:
================
Enter any two integer85
95
(a > b) << (a < b) = 0
(a>> b) || (a < b)= 1
! (a > b )= 1
*/
#include <stdio.h>
int main()
{
int a,b;
printf("Enter any two integer");
scanf("%d%d",& a,& b);
printf("(a > b) && (a < b) = %d\n",( (a > b) && (a < b) ) );
printf(" (a > b) || (a< b)= %d\n", ( (a> b) || (a < b) ));
printf(" ! (a>b )= %d\n", (! (a>b) ));
return 0;
}
Try it Yourself
Truth Table for OR, AND, XOR and NOT
| X | Y | X|Y | X&Y | X^Y | ~X |
|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 1 |
| 0 | 1 | 1 | 0 | 1 | 1 |
| 1 | 0 | 1 | 0 | 1 | 0 |
| 1 | 1 | 1 | 1 | 0 | 0 |
| Operator | Name | Category | syntax | Example (a=75,b=95) |
| & | Bitwise And | B | a & b | 75 |
| | | Bitwise Or | B | a|b | 95 |
| ^ | Bitwise XOR | B | a^b | 20 |
| ~ | Bitwise Not | U | ~a | -76 |
| << | Bitwise Leftshift | B | a << 3 (no of shifts) | 600 |
| >> | Bitwise Rightshift | B | a >> 3 (no of shifts) | 9 |
/*
Write a C program for Bitwise operators:
Expected Output:
================
Enter any two integer75
95
a& b = 75
a|b = 95
a^b = 20
~a = -76
a <<3 = 600
a >>3 = 9
*/
#include <stdio.h >
int main()
{
int a,b;
printf("Enter any two integer");
scanf("%d%d",& a,& b);
printf("a& b = %d\n", a & b);
printf("a|b = %d\n", a | b);
printf("a^b = %d\n", a ^ b);
printf("~a = %d\n", ~a);
printf("a3 = %d\n", a << 3);
printf("a>>3 = %d\n", a >> 3);
return 0;
}
Try it Yourself
| Operator | Description | Example |
|---|---|---|
| & | Returns the address of a variable. | &a; returns the actual address of the variable. |
| sizeof() | Returns the size of a variable. | sizeof(a), where a is integer, will return 4. |
| * | Pointer to a variable. | *a; |
| ? : | Conditional Expression. | If Condition is true ? then value X : otherwise value Y |
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