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C program for Addition and Multiplication by 2 using Bitwise Operations.
Bitwise operators operate on bits (i.e. on binary values of on operand)
| Operator | Description |
|---|---|
| & | Bitwise AND |
| | | Bitwise OR |
| ^ | Bitwise XOR |
| << | Left Shift |
| >> | Right Shift |
| - | One's complement |
| Bitwise AND | ||
|---|---|---|
| a | b | a & b |
| 0 | 0 | 0 |
| 0 | 1 | 0 |
| 1 | 0 | 0 |
| 1 | 1 | 1 |
| Bitwise OR | ||
|---|---|---|
| a | b | a | b |
| 0 | 0 | 0 |
| 0 | 1 | 1 |
| 1 | 0 | 1 |
| 1 | 1 | 1 |
| Bitwise XOR | ||
|---|---|---|
| a | b | a ^ b |
| 0 | 0 | 0 |
| 0 | 1 | 1 |
| 1 | 0 | 1 |
| 1 | 1 | 0 |
Example
Following is the C program for addition and multiplication by 2 with the help of bitwise operators −
#include<stdio.h>
main(){
int a;
printf("Enter a
");
scanf("%d",&a);
printf("%d*2=%d
",a,a<<1);
printf("%d/2=%d
",a,a>>1);
}Output
When the above program is executed, it produces the following output −
Run 1: Enter a 45 45*2=90 45/2=22 Run 2: Enter a 65 65*2=130 65/2=32
Updated on: 25-Mar-2021
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