xenocara/lib/libXdmcp/Alloc.c

/*
 * $Xorg: Alloc.c,v 1.4 2001/02/09 02:03:48 xorgcvs Exp $
 *
 * 
Copyright 1989, 1998  The Open Group

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documentation for any purpose is hereby granted without fee, provided that
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all copies or substantial portions of the Software.

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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
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 * *
 * Author:  Keith Packard, MIT X Consortium
 */

/* $XFree86: xc/lib/Xdmcp/Alloc.c,v 3.4 2001/07/25 15:04:50 dawes Exp $ */

/* stubs for use when Xalloc, Xrealloc and Xfree are not defined */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <X11/Xos.h>
#include <X11/X.h>
#include <X11/Xmd.h>
#include <X11/Xdmcp.h>
#include <stdlib.h>

/* this probably works for Mach-O too, but probably not for PE */
#if defined(__ELF__) && defined(__GNUC__) && (__GNUC__ >= 3)
#define weak __attribute__((weak))
#else
#define weak
#endif

#ifdef __SUNPRO_C
#pragma weak Xalloc
#pragma weak Xrealloc
#pragma weak Xfree
#endif

weak void *
Xalloc (unsigned long amount)
{
    if (amount == 0)
	amount = 1;
    return malloc (amount);
}

weak void *
Xrealloc (void *old, unsigned long amount)
{
    if (amount == 0)
	amount = 1;
    if (!old)
	return malloc (amount);
    return realloc ((char *) old, amount);
}

weak void
Xfree (void *old)
{
    if (old)
	free ((char *) old);
}