osdev/stdarg.h at master · cstack/osdev · GitHub

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/* Copyright (C) 1989, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.

This file is part of GCC.

GCC 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.

GCC 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 GCC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */

/* As a special exception, if you include this header file into source
 files compiled by GCC, this header file does not by itself cause
 the resulting executable to be covered by the GNU General Public
 License. This exception does not however invalidate any other
 reasons why the executable file might be covered by the GNU General
 Public License. */

/*
 * ISO C Standard: 7.15 Variable arguments <stdarg.h>
 */

#ifndef_STDARG_H
#ifndef_ANSI_STDARG_H_
#ifndef__need___va_list
#define_STDARG_H
#define_ANSI_STDARG_H_
#endif/* not __need___va_list */
#undef __need___va_list

/* Define __gnuc_va_list. */

#ifndef__GNUC_VA_LIST
#define__GNUC_VA_LIST
typedef__builtin_va_list__gnuc_va_list;
#endif

/* Define the standard macros for the user,
 if this invocation was from the user program. */
#ifdef_STDARG_H

#defineva_start(v,l) __builtin_va_start(v,l)
#defineva_end(v) __builtin_va_end(v)
#defineva_arg(v,l) __builtin_va_arg(v,l)
#if !defined(__STRICT_ANSI__) ||__STDC_VERSION__+0 >= 199900L
#defineva_copy(d,s) __builtin_va_copy(d,s)
#endif
#define__va_copy(d,s) __builtin_va_copy(d,s)

/* Define va_list, if desired, from __gnuc_va_list. */
/* We deliberately do not define va_list when called from
 stdio.h, because ANSI C says that stdio.h is not supposed to define
 va_list. stdio.h needs to have access to that data type,
 but must not use that name. It should use the name __gnuc_va_list,
 which is safe because it is reserved for the implementation. */

#ifdef_HIDDEN_VA_LIST/* On OSF1, this means varargs.h is "half-loaded". */
#undef _VA_LIST
#endif

#ifdef_BSD_VA_LIST
#undef _BSD_VA_LIST
#endif

#if defined(__svr4__) || (defined(_SCO_DS) && !defined(__VA_LIST))
/* SVR4.2 uses _VA_LIST for an internal alias for va_list,
 so we must avoid testing it and setting it here.
 SVR4 uses _VA_LIST as a flag in stdarg.h, but we should
 have no conflict with that. */
#ifndef_VA_LIST_
#define_VA_LIST_
#ifdef__i860__
#ifndef_VA_LIST
#define_VA_LIST va_list
#endif
#endif/* __i860__ */
typedef__gnuc_va_listva_list;
#ifdef_SCO_DS
#define__VA_LIST
#endif
#endif/* _VA_LIST_ */
#else/* not __svr4__ || _SCO_DS */

/* The macro _VA_LIST_ is the same thing used by this file in Ultrix.
 But on BSD NET2 we must not test or define or undef it.
 (Note that the comments in NET 2's ansi.h
 are incorrect for _VA_LIST_--see stdio.h!) */
#if !defined (_VA_LIST_) || defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__sequent__) || defined (__FreeBSD__) || defined(WINNT)
/* The macro _VA_LIST_DEFINED is used in Windows NT 3.5 */
#ifndef_VA_LIST_DEFINED
/* The macro _VA_LIST is used in SCO Unix 3.2. */
#ifndef_VA_LIST
/* The macro _VA_LIST_T_H is used in the Bull dpx2 */
#ifndef_VA_LIST_T_H
/* The macro __va_list__ is used by BeOS. */
#ifndef__va_list__
typedef__gnuc_va_listva_list;
#endif/* not __va_list__ */
#endif/* not _VA_LIST_T_H */
#endif/* not _VA_LIST */
#endif/* not _VA_LIST_DEFINED */
#if !(defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__sequent__) || defined (__FreeBSD__))
#define_VA_LIST_
#endif
#ifndef_VA_LIST
#define_VA_LIST
#endif
#ifndef_VA_LIST_DEFINED
#define_VA_LIST_DEFINED
#endif
#ifndef_VA_LIST_T_H
#define_VA_LIST_T_H
#endif
#ifndef__va_list__
#define__va_list__
#endif

#endif/* not _VA_LIST_, except on certain systems */

#endif/* not __svr4__ */

#endif/* _STDARG_H */

#endif/* not _ANSI_STDARG_H_ */
#endif/* not _STDARG_H */