wrtwarning
wrtwarning("modified (chunk-) pointer.\n");
wrtwarning("chunk is already free.\n");
wrtwarning("junk pointer, too low to make sense.\n");
wrtwarning("junk pointer, too high to make sense.\n");
wrtwarning("recursive call\n");
wrtwarning("malloc() has never been called\n");
wrtwarning("junk pointer, too low to make sense.\n");
wrtwarning("junk pointer, too high to make sense.\n");
wrtwarning("modified (page-) pointer.\n");
wrtwarning("modified (chunk-) pointer.\n");
wrtwarning("chunk is already free.\n");
wrtwarning("pointer to wrong page.\n");
wrtwarning("page is already free.\n");
wrtwarning("pointer to wrong page.\n");
wrtwarning("modified (page-) pointer.\n");