casa-mp-base

/* obstack.c - subroutines used implicitly by object stack macros

   Copyright (C) 1988-1994,96,97,98,99,2000,2001 Free Software Foundation, Inc.

   This file is part of the GNU C Library.  Its master source is NOT part of

   the C library, however.  The master source lives in /gd/gnu/lib.

​

   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.  */

​

#ifdef HAVE_CONFIG_H

#include <config.h>

#endif

​

#include "obstack.h"

​

/* NOTE BEFORE MODIFYING THIS FILE: This version number must be

   incremented whenever callers compiled using an old obstack.h can no

   longer properly call the functions in this obstack.c.  */

#define OBSTACK_INTERFACE_VERSION 1

​

/* Comment out all this code if we are using the GNU C Library, and are not

   actually compiling the library itself, and the installed library

   supports the same library interface we do.  This code is part of the GNU

   C Library, but also included in many other GNU distributions.  Compiling

   and linking in this code is a waste when using the GNU C library

   (especially if it is a shared library).  Rather than having every GNU

   program understand `configure --with-gnu-libc' and omit the object

   files, it is simpler to just do this in the source for each such file.  */

​

#include <stdio.h>      /* Random thing to get __GNU_LIBRARY__.  */

#if !defined (_LIBC) && defined (__GNU_LIBRARY__) && __GNU_LIBRARY__ > 1

#include <gnu-versions.h>

#if _GNU_OBSTACK_INTERFACE_VERSION == OBSTACK_INTERFACE_VERSION

#define ELIDE_CODE

#endif

#endif

​

​

#ifndef ELIDE_CODE

​

​

#if defined (__STDC__) && __STDC__

#define POINTER void *

#else

#define POINTER char *

#endif

​

/* Determine default alignment.  */

struct fooalign {char x; double d;};

#define DEFAULT_ALIGNMENT  \

  ((PTR_INT_TYPE) ((char *) &((struct fooalign *) 0)->d - (char *) 0))

/* If malloc were really smart, it would round addresses to DEFAULT_ALIGNMENT.