galloca.h

来自「windows平台下开发gtk程序所需要的库和头文件等」· C头文件 代码 · 共 64 行

/* GLIB - Library of useful routines for C programming
 * Copyright (C) 1995-1997  Peter Mattis, Spencer Kimball and Josh MacDonald
 *
 * This 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 of the License, or (at your option) any later version.
 *
 * This 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 this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

/*
 * Modified by the GLib Team and others 1997-2000.  See the AUTHORS
 * file for a list of people on the GLib Team.  See the ChangeLog
 * files for a list of changes.  These files are distributed with
 * GLib at ftp://ftp.gtk.org/pub/gtk/.
 */

#if defined(G_DISABLE_SINGLE_INCLUDES) && !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
#error "Only <glib.h> can be included directly."
#endif

#ifndef __G_ALLOCA_H__
#define __G_ALLOCA_H__

#include <glib/gtypes.h>

#ifdef  __GNUC__
/* GCC does the right thing */
# undef alloca
# define alloca(size)   __builtin_alloca (size)
#elif defined (GLIB_HAVE_ALLOCA_H)
/* a native and working alloca.h is there */ 
# include <alloca.h>
#else /* !__GNUC__ && !GLIB_HAVE_ALLOCA_H */
# if defined(_MSC_VER) || defined(__DMC__)
#  include <malloc.h>
#  define alloca _alloca
# else /* !_MSC_VER && !__DMC__ */
#  ifdef _AIX
#   pragma alloca
#  else /* !_AIX */
#   ifndef alloca /* predefined by HP cc +Olibcalls */
G_BEGIN_DECLS
char *alloca ();
G_END_DECLS
#   endif /* !alloca */
#  endif /* !_AIX */
# endif /* !_MSC_VER && !__DMC__ */
#endif /* !__GNUC__ && !GLIB_HAVE_ALLOCA_H */

#define g_alloca(size)		 alloca (size)
#define g_newa(struct_type, n_structs)	((struct_type*) g_alloca (sizeof (struct_type) * (gsize) (n_structs)))

#endif /* __G_ALLOCA_H__ */