#include <stdlib.h>                              /* malloc()   */
#include <string.h>                              /* strerror() */
#include <stdio.h>                               /* fprintf()  */
#include <errno.h>                               /* errno      */

#define CNT     256000000

int main (void)
{
  unsigned long  i;
  unsigned char* p_data;

  p_data = malloc (CNT);

  if (p_data == NULL)
	{
	  fprintf (stderr, "unable to allocate memory\nerrno = %d (%s)",
                       errno, strerror (errno));
		exit (-1);
	}
	
	printf ("p_data: %p\n", p_data);
	
	for (i = 0; i < CNT; i++)
	  p_data [i] = 0;
  
  free (p_data);  
  return (0);
}