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# C program to swap two bits of a byte

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Swapping of two bits of a byte using C program: Here, we will learn how to swap two bits of a byte?

Given a byte (an integer number of 8 bits) and we have to swap its any two bits using C program.

In this program, we declared an unsigned char type variable to read 8 bits number (byte) and we are swapping two bits (1 and 2) of given number.

Example:

```Input number:  0x0A (Hexadecimal)
Binary of input number: 0000 1010
After swapping of bit 1 and 2
Binary will be: 0000 1100
Output number will be: 0x0C (Hexadecimal)
```

## Swapping two bits of a byte using C program

```/*C program to swap two bits of a byte.*/

#include <stdio.h>

int main()
{
unsigned char data=0x0A;

// swaping 1st bit to 2nd bit (bit counting 7-0).
// binary of 0x0A is : 0000 1010

data^=(1<<1);
data^=(1<<2);

// data will be : 0000 1100 (0x0C)
printf("\ndata after swap bits : %02X",data);

return 0;
}
```

Output

```data after swap bits : 0C
```
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