/*******************************************************************************
 * Test what the OS does, if there is no ram and cpu left. 
 * Author: Nico Schottelius <nicos@pcsystems.de>
 * Date: 4th of July 2001
 * 
 *
 * 5th of Decembre 2001: 
 *  added initialization of the new allocated ram. Without this 'feature'
 *  Linux 2.4 has no problems. It is even possible to allocate 2000 MB RAM, 
 *  where only 128 MB is! (Linux gives you 'SoftRam'...)
 *
 ******************************************************************************/

#include <stdlib.h>
#include <stdio.h>

#define lint long int

lint add(lint last) {

	if(last == 0)
		return last;
	else if(last < 0)
		return -1;
	else
		return last + add(last -1);
}

int main ( void ) 
{

	char **uebervoll = NULL;
	int x = 1, a = 0; /* how many megs to allocate within one step */
	int one_k = 1024;
	int one_meg = one_k * 1024;
	lint i = 0;

         uebervoll = (char **) realloc(uebervoll, (i+1) * sizeof(char *) );

   for(i=0;;) {
      uebervoll = (char **) realloc(uebervoll, (i+1) * sizeof(char *));
      if(uebervoll != NULL) {
         uebervoll[i] = (char *) malloc(x * one_meg * sizeof(char) );
         /* init allocated ram */
         for(a=0;a<(x*one_meg*sizeof(char));a++) uebervoll[i][a] = 'a';
         if(uebervoll[i] != NULL) {
            i++;
            printf("%d MB RAM allocated\n",x * i);
         }
      }
   }
}