Write a C program to input any number from user and check whether n^{th} bit of the given number is set (1) or not (0). How to check whether n^{th} bit of a given number is set or unset using bitwise operator in C programming. C program to get the status of n^{th} bit of a number.

**Example**

**Input**

Input number: 12 Input nth bit number: 2

**Output**

2 bit of 12 is set (1)

In previous two exercise, we learned to get Least Significant Bit (LSB) and Most Significant Bit (MSB) of a number. In this post we will learn to get nth bit of a number.

## Required knowledge

Bitwise operators, Data types, Variables and Expressions, Basic input/output

## Logic to get nth bit of a number

Step by step descriptive logic to get nth bit of a number.

- Input number from user. Store it in some variable say
`num`. - Input the bit position from user. Store it in some variable say
`n`. - To get the nth bit of
`num`right shift`num`,`n`times. Then perform bitwise AND with`1`i.e.`bitStatus = (num >> n) & 1;`

.

## Program to get nth bit of a number

```
/**
* C program to get the nth bit of a number
*/
#include <stdio.h>
int main()
{
int num, n, bitStatus;
/* Input number from user */
printf("Enter any number: ");
scanf("%d", &num);
/* Input bit position you want to check */
printf("Enter nth bit to check (0-31): ");
scanf("%d", &n);
/* Right shift num, n times and perform bitwise AND with 1 */
bitStatus = (num >> n) & 1;
printf("The %d bit is set to %d", n, bitStatus);
return 0;
}
```

Always remember bit order starts from 0.

Output

Enter any number: 12 Enter nth bit to check (0-31): 2 The 2 bit is set to 1

Happy coding 😉

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