root / Whitix / branches / network / include / stdarg.h

/*  This file is part of Whitix.
 *
 *  Whitix 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 of the License, or
 *  (at your option) any later version.
 *
 *  Whitix 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 Whitix; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

#ifndef STDARG_H
#define STDARG_H

typedef unsigned char* va_list;

/* Just get the memory location after the last argument */
#define va_start(list,lastArg) \
        (list=((va_list)&(lastArg)+va_size(lastArg)));

/* Must be the other way round because of the comma operator */
#define va_arg(list,type) \
        (list+=__va_rounded_size(type), \
        *((type*)(list-__va_rounded_size(type))))

/* Stacks are int-aligned */
#define __va_rounded_size(type) \
        (((sizeof(type)+sizeof(int)-1)/sizeof(int))*sizeof(int))

#define va_size(type) \
        ((sizeof(type)+sizeof(int)-1) \
        & ~(sizeof(int)-1))

/* Just for a certain cleanliness */
#define va_end(list)

#endif