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/* 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#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)
{
printf("round %li\n", 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);
}
puts("done");
p1 = realloc (p1, 40);
puts("after realloc");
free (p2);
puts("after free 1");
p2 = malloc (10);
puts("after malloc");
if (p2 == NULL)
merror ("malloc (10) failed.");
free (p1);
puts("after free 2");
return errors != 0;
}
/*
* Local variables:
* c-basic-offset: 2
* End:
*/
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