Byte Swapping

Byte_swapping.c

/*
 *  Author:       Adrian Statescu <mergesortv@gmail.com>
 *  Description:  Byte Swapping.
 */
#include <stdio.h>

void __byteswapping__(void *x1, void *x2, size_t size) {

    char *x = (char*)x1;

    char *y = (char*)x2;   

    int i;

    for(i = 0; i < size; ++i) {

        size_t holder = *(x + i);
 
               *(x + i) = *(y + i);  

               *(y + i) = holder;
    }
 
}

int main() {

    long int num1, 
             num2;

    
    scanf("%ld %ld", &num1, &num2);
    

    printf("num1 = %ld, num2 = %ld\n", num1, num2);

    printf("After Swapping:\n");
    
    __byteswapping__(&num1, &num2, sizeof(long int));
    
    printf("num1 = %ld, num2 = %ld\n", num1, num2);
    
    return(0);
}