/*
        Copyright 07/20/98 Sun Microsystems, Inc. All Rights Reserved
*/


#if !defined(__STD_CSTDARG) && !defined(__STD_STDARG_H)
#define __STD_CSTDARG

#include <sys/va_list.h>

typedef __va_list va_list;

/*
 * Many compilation systems depend upon the use of special functions
 * built into the the compilation system to handle variable argument
 * lists and stack allocations.  The method to obtain this in SunOS
 * is to define the feature test macro "__BUILTIN_VA_ARG_INCR" which
 * enables the following special built-in functions:
 *	__builtin_alloca
 *	__builtin_va_alist
 *	__builtin_va_arg_incr
 * It is intended that the compilation system define this feature test
 * macro, not the user of the system.
 *
 * The tests on the processor type are to provide a transitional period
 * for existing compilation systems, and may be removed in a future
 * release.
 */
#if (defined(__BUILTIN_VA_ARG_INCR) || defined(sparc) || defined(__sparc) || \
    defined(i386) || defined(__i386)) && !(defined(lint) || defined(__lint))

/*
 * Instruction set architectures which use a simple pointer to the
 * argument save area share a common implementation.
 */
#define	va_start(list, name)	(void) (list = (va_list) &__builtin_va_alist)
#define	va_arg(list, mode)	((mode *)__builtin_va_arg_incr((mode *)list))[0]

#else	/* defined(__BUILTIN_VA_ARG_INCR) && !(defined(lint) || ... ) */

#define	va_start(list, name) (void) (list = (void *)((char *)&name + \
	((sizeof (name) + (sizeof (int) - 1)) & ~(sizeof (int) - 1))))
#define	va_arg(list, mode) \
	((mode *)(list = (void *)((char *)list + sizeof (mode))))[-1]

#endif	/* defined(__BUILTIN_VA_ARG_INCR) && !(defined(lint) || ... ) */

extern "C" void va_end(va_list);
#define	va_end(list) (void)0

/*
 * va_copy is a Solaris extension to provide a portable way to perform
 * a variable argument list ``bookmarking'' function.
 */
#if defined(__EXTENSIONS__) || ((__STDC__ - 0 == 0) && \
	!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE))

#define	va_copy(to, from)	((to) = (from))

#endif	/* defined(__EXTENSIONS__) || ((__STDC__ - 0 == 0) && ... ) */

namespace std {

// C++ Standard functions and types

/*
 * The type associated with va_list is defined in <sys/va_list.h> under the
 * implementation name __va_list.  This protects the ANSI-C, POSIX and
 * XPG namespaces.  Including this file allows (requires) the name va_list
 * to exist in the these namespaces.
 */
typedef __va_list va_list;

} /* namespace std */

#endif /* __STD_stdarg */