C Program to Swap two Numbers using Bitwise Operators

This C Program Swaps two Numbers using Bitwise operators.

Here is source code of the C Program to Swap two Numbers using Bitwise operators. The C program is successfully compiled and run on a Linux system. The program output is also shown below.

```
/*
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 * C Program to Swap two Numbers using Bitwise operators

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 */
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#include <stdio.h>
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#include <string.h>
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/* Function Prototype */
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void swap(int*, int *);
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void main()
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{
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    int num1, num2;
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    printf("\nEnter two numbers:");
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    scanf("%d %d", &num1, &num2);
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    printf("\nThe numbers before swapping are Number1= %d Number2 = %d", num1, num2);

    swap(&num1, &num2);        /* Call by Reference to function swap */

    printf("\nThe numbers after swapping are Number1= %d Number2 = %d", num1, num2);

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}
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```
 
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/* Code to swap two numbers using bitwise operator */

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void swap(int *x, int *y)
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{
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    *x = *x ^ *y;
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    *y = *x ^ *y;
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    *x = *x ^ *y;
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}
```

$ cc bit27.c
$ a.out
 
Enter two numbers:45 76
The numbers before swapping are Number1= 45 Number2=76
The numbers after swapping are Number1= 76 Number2=45

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