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/* ****************************************************************************
* stdarg.h -- Variable argument list management for SHC.
*
* Copyright (C) 2017 Thomas "Cakeisalie5" Touhey <thomas@touhey.fr>
*
* This file is part of the 'all/compiler-renesas' module in libcarrot, an
* experimental modular libc project.
*
* This file 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 3 of the License, or (at your option)
* any later version.
*
* This file 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 Lesser Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this file. If not, see <http://www.gnu.org/licenses/>.
* ************************************************************************* */
typedef char* __va_list;
/* (get the 4-aligned address) */
#define __va_ceil(_ADDR) \
(va_list)(((__uintptr_t)(_ADDR) & ~3) + ((__uintptr_t)(_ADDR) & 3) ? 4 : 0)
#define __va_floor(_ADDR) \
(va_list)((__uintptr_t)(_ADDR) & ~3)
/* Open and close a variable argument list. */
#define __stdarg_va_start(_AP, _PARAM) \
(void)(_AP = __va_ceil((char*)&_PARAM + sizeof(_PARAM)))
#define __stdarg_va_end(_AP) (void)(_AP = NULL)
/* Obtain an argument from the variable argument list. */
#define __stdarg_va_arg(_AP, _TYPE) \
(*(_TYPE*)(_AP = __va_ceil(_AP + sizeof(_TYPE)), \
__va_floor(_AP - sizeof(_TYPE))))
/* Copy a variable argument list. */
#define __stdarg_va_copy(_D, _S) { _D = _S }
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