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[thirdparty/gcc.git] / gcc / ginclude / stdarg.h

/* stdarg.h for GNU.
   Note that the type used in va_arg is supposed to match the
   actual type **after default promotions**.
   Thus, va_arg (..., short) is not valid.  */

#ifndef _STDARG_H
#define _STDARG_H

#ifndef __GNUC__
/* Use the system's macros with the system's compiler.  */
#include <stdarg.h>
#else
#ifdef __m88k__
#include "va-m88k.h"
#else
#ifdef __i860__
#include "va-i860.h"
#else
#ifdef __hp9000s800__
#include "va-hp800.h"
#else
#ifdef __mips__
#include "va-mips.h"
#else

/* The macro _VA_LIST_ is the same thing used by this file in Ultrix.  */
#ifndef _VA_LIST_
/* The macro _VA_LIST is used in SCO Unix 3.2.  */
#ifndef _VA_LIST
#define _VA_LIST_
#define _VA_LIST
typedef char *va_list;
#endif /* _VA_LIST */
#endif /* _VA_LIST_ */

/* Amount of space required in an argument list for an arg of type TYPE.
   TYPE may alternatively be an expression whose type is used.  */

#define __va_rounded_size(TYPE)  \
  (((sizeof (TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int))

#ifndef __sparc__
#define va_start(AP, LASTARG) 						\
 (AP = ((char *) __builtin_next_arg ()))
#else
#define va_start(AP, LASTARG) 						\
 (__builtin_saveregs (),						\
  AP = ((char *) __builtin_next_arg ()))
#endif

void va_end (va_list);		/* Defined in libgcc.a */
#define va_end(AP)

#define va_arg(AP, TYPE)						\
 (AP += __va_rounded_size (TYPE),					\
  *((TYPE *) (AP - __va_rounded_size (TYPE))))

#endif /* not mips */
#endif /* not hp9000s800 */
#endif /* not i860 */
#endif /* not m88k */
#endif /* __GNUC__ */
#endif /* _STDARG_H */