/******************************************************************************
$Id: swap.c,v 1.1 2013/02/14 16:58:03 pascal Exp $
                                  
 *****************************************************************************/
#include <string.h>
#include <stdlib.h>


#include "config.h"
#include "EndianSwap/swap.h"

/******************************************************************************
ES_swap
###############
swap data between big-endian and little-endian representation.

IN:
size_t size: size of the value type.

INOUT:
void * val: pointer to the value to swap between big-endian and little-endian.

RETURN: 
short * : pointer to val
*****************************************************************************/

void * ES_swap(void * val, const size_t size)
{
  int i; /* iterator */
  unsigned char * pc1;
  char * tmp_val;

  pc1 = (unsigned char *)val;

  tmp_val = malloc(size * sizeof(char));

  pc1 = (unsigned char *)val;

  for(i=0; i<size; i++)
    {
     tmp_val[size - i -1] = pc1[i];
    }
  memcpy(val, tmp_val, size);
  
  free(tmp_val);
  
  return val;
}