libc

/* $Id$ */

/* This file is part of DeforaOS System libc */

* Redistribution and use in source and binary forms, with or without

* modification, are permitted provided that the following conditions are

* met:

* 1. Redistributions of source code must retain the above copyright

* notice, this list of conditions and the following disclaimer.

* 2. Redistributions in binary form must reproduce the above copyright

* notice, this list of conditions and the following disclaimer in the

* documentation and/or other materials provided with the distribution.

* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED

* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A

* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED

* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */

#ifndef LIBC_STDARG_H

# define LIBC_STDARG_H

# include "compat.h"

/* types */

# ifndef va_list

# define va_list va_list

typedef __va_list va_list;

# endif

/* macros */

# if defined(__GNUC__) && __GNUC__ >= 3

# define va_start(ap, arg) __builtin_va_start((ap), (arg))

# define va_arg __builtin_va_arg

# define va_copy __builtin_va_copy

# define va_end(ap) __builtin_va_end((ap))

# else

/* XXX works only in particular cases */

# define va_start(ap, arg) ((ap) = ((va_list)&(arg)) \

+ ((sizeof(long) > sizeof(arg)) ? sizeof(long) : sizeof(arg)))

# define va_arg(ap, type) *(type *)(ap), \

((ap) += ((sizeof(long) > sizeof(type)) ? sizeof(long) : sizeof(type)))

# define va_copy(copy, arg) ((copy) = (arg))

# define va_end(ap)

# endif

#endif /* !LIBC_STDARG_H */