/* xmalloc.c -- malloc with out of memory checking
- Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.
+ Copyright (C) 1990-1999, 2000 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
# define EXIT_FAILURE 1
#endif
-/* Prototypes for functions defined here. */
-#if defined (__STDC__) && __STDC__
-static void *fixup_null_alloc (size_t n);
-void *xmalloc (size_t n);
-void *xcalloc (size_t n, size_t s);
-void *xrealloc (void *p, size_t n);
+#ifndef HAVE_DONE_WORKING_MALLOC_CHECK
+"you must run the autoconf test for a properly working malloc -- see malloc.m4"
#endif
+#ifndef HAVE_DONE_WORKING_REALLOC_CHECK
+"you must run the autoconf test for a properly working realloc --see realloc.m4"
+#endif
/* Exit value when the requested amount of memory is not available.
The caller may set it to some other value. */
int xalloc_exit_failure = EXIT_FAILURE;
-/* FIXME: describe */
-char *const xalloc_msg_memory_exhausted = N_("Memory exhausted");
-
-/* FIXME: describe */
-void (*xalloc_fail_func) () = 0;
+/* If non NULL, call this function when memory is exhausted. */
+void (*xalloc_fail_func) PARAMS ((void)) = 0;
-#if __STDC__ && (HAVE_VPRINTF || HAVE_DOPRNT)
-void error (int, int, const char *, ...);
-#else
-void error ();
-#endif
+/* If XALLOC_FAIL_FUNC is NULL, or does return, display this message
+ before exiting when memory is exhausted. Goes through gettext. */
+char const xalloc_msg_memory_exhausted[] = N_("memory exhausted");
-static void
-xalloc_fail ()
+void
+xalloc_die (void)
{
if (xalloc_fail_func)
(*xalloc_fail_func) ();
- error (xalloc_exit_failure, 0, xalloc_msg_memory_exhausted);
+ error (xalloc_exit_failure, 0, "%s", _(xalloc_msg_memory_exhausted));
+ /* The `noreturn' cannot be given to error, since it may return if
+ its first argument is 0. To help compilers understand the
+ xalloc_die does terminate, call exit. */
+ exit (EXIT_FAILURE);
}
/* Allocate N bytes of memory dynamically, with error checking. */
void *
-xmalloc (n)
- size_t n;
+xmalloc (size_t n)
{
void *p;
p = malloc (n);
if (p == 0)
- xalloc_fail ();
+ xalloc_die ();
return p;
}
/* Change the size of an allocated block of memory P to N bytes,
- with error checking.
- If P is NULL, run xmalloc. */
+ with error checking. */
void *
-xrealloc (p, n)
- void *p;
- size_t n;
+xrealloc (void *p, size_t n)
{
p = realloc (p, n);
if (p == 0)
- xalloc_fail ();
+ xalloc_die ();
return p;
}
-#ifdef NOT_USED
-
/* Allocate memory for N elements of S bytes, with error checking. */
void *
-xcalloc (n, s)
- size_t n, s;
+xcalloc (size_t n, size_t s)
{
void *p;
p = calloc (n, s);
if (p == 0)
- p = fixup_null_alloc (n);
+ xalloc_die ();
return p;
}
-
-#endif /* NOT_USED */