text: /* Copyright (C) 2001 Free Software Foundation, Inc.
     This file is part of the GNU C Library.
     Contributed by Wolfram Gloger <wg@malloc.de>, 2001.
  
     The GNU C Library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Lesser General Public
     License as published by the Free Software Foundation; either
     version 2.1 of the License, or (at your option) any later version.
  
     The GNU C Library is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     Lesser General Public License for more details.
  
     You should have received a copy of the GNU Lesser General Public
     License along with the GNU C Library; if not, see
     <http://www.gnu.org/licenses/>.  */
  
  #include <errno.h>
  #include <stdio.h>
  #include "malloc.h"
  
  static int errors = 0;
  
  static void
  merror (const char *msg)
  {
    ++errors;
    printf ("Error: %s\n", msg);
  }
  
  int
  main (void)
  {
    void *p1, *p2;
    void *save_state;
    long i;
  
    errno = 0;
  
    p1 = malloc (10);
    if (p1 == NULL)
      merror ("malloc (10) failed.");
  
    p2 = malloc (20);
    if (p2 == NULL)
      merror ("malloc (20) failed.");
  
    free (malloc (10));
  
    for (i=0; i<100; ++i)
      {
        save_state = malloc_get_state ();
        if (save_state == NULL)
  	{
  	  merror ("malloc_get_state () failed.");
  	  break;
  	}
        /*free (malloc (10)); This could change the top chunk! */
        malloc_set_state (save_state);
        p1 = realloc (p1, i*4 + 4);
        if (p1 == NULL)
  	merror ("realloc (i*4) failed.");
        free (save_state);
      }
  
    p1 = realloc (p1, 40);
    free (p2);
    p2 = malloc (10);
    if (p2 == NULL)
      merror ("malloc (10) failed.");
    free (p1);
  
    return errors != 0;
  }
  
  /*
   * Local variables:
   * c-basic-offset: 2
   * End:
   */
  