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/* xmalloc.c -- malloc with out of memory checking
Copyright (C) 1990, 91, 92, 93, 94, 95, 96 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
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#if __STDC__
# define VOID void
#else
# define VOID char
#endif
#include <sys/types.h>
// we do have stdlib.h
//#if STDC_HEADERS
# include <stdlib.h>
//#else
//VOID *calloc ();
//VOID *malloc ();
//VOID *realloc ();
//void free ();
//#endif
#if ENABLE_NLS
# include <libintl.h>
# define _(Text) gettext (Text)
#else
# define textdomain(Domain)
# define _(Text) Text
#endif
#include "error.h"
#ifndef EXIT_FAILURE
# 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);
#endif
/* Exit value when the requested amount of memory is not available.
The caller may set it to some other value. */
int xmalloc_exit_failure = EXIT_FAILURE;
#if __STDC__ && (HAVE_VPRINTF || HAVE_DOPRNT)
void error (int, int, const char *, ...);
#else
void error ();
#endif
static VOID *
fixup_null_alloc (size_t n)
{
VOID *p;
p = 0;
if (n == 0)
p = malloc ((size_t) 1);
if (p == 0)
error (xmalloc_exit_failure, 0, _("Memory exhausted"));
return p;
}
/* Allocate N bytes of memory dynamically, with error checking. */
VOID *
xmalloc (size_t n)
{
VOID *p;
p = malloc (n);
if (p == 0)
p = fixup_null_alloc (n);
return p;
}
/* Allocate memory for N elements of S bytes, with error checking. */
VOID *
xcalloc (size_t n, size_t s)
{
VOID *p;
p = calloc (n, s);
if (p == 0)
p = fixup_null_alloc (n);
return p;
}
/* Change the size of an allocated block of memory P to N bytes,
with error checking.
If P is NULL, run xmalloc. */
VOID *
xrealloc (VOID *p, size_t n)
{
if (p == 0)
return xmalloc (n);
p = realloc (p, n);
if (p == 0)
p = fixup_null_alloc (n);
return p;
}
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