130 lines
3.6 KiB
C
130 lines
3.6 KiB
C
/* stdarg.h for GNU.
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Note that the type used in va_arg is supposed to match the
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actual type **after default promotions**.
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Thus, va_arg (..., short) is not valid. */
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#ifndef _STDARG_H
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#ifndef _ANSI_STDARG_H_
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#ifndef __need___va_list
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#define _STDARG_H
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#define _ANSI_STDARG_H_
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#endif /* not __need___va_list */
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#undef __need___va_list
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#ifndef __GNUC__
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/* Use the system's macros with the system's compiler.
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This is relevant only when building GCC with some other compiler. */
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#include <stdarg.h>
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#else
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#ifdef __m88k__
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#include <va-m88k.h>
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#else
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#ifdef __i860__
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#include <va-i860.h>
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#else
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#ifdef __hppa__
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#include <va-pa.h>
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#else
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#ifdef __mips__
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#include <va-mips.h>
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#else
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#ifdef __sparc__
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#include <va-sparc.h>
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#else
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#ifdef __i960__
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#include <va-i960.h>
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#else
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#ifdef __alpha__
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#include <va-alpha.h>
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#else
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/* Define __gnuc_va_list. */
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#ifndef __GNUC_VA_LIST
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#define __GNUC_VA_LIST
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#if defined(__svr4__) || defined(_AIX) || defined(_M_UNIX)
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typedef char *__gnuc_va_list;
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#else
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typedef void *__gnuc_va_list;
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#endif
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#endif
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/* Define the standard macros for the user,
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if this invocation was from the user program. */
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#ifdef _STDARG_H
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/* Amount of space required in an argument list for an arg of type TYPE.
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TYPE may alternatively be an expression whose type is used. */
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#define __va_rounded_size(TYPE) \
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(((sizeof (TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int))
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#define va_start(AP, LASTARG) \
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(AP = ((__gnuc_va_list) __builtin_next_arg ()))
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void va_end (__gnuc_va_list); /* Defined in libgcc.a */
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#define va_end(AP)
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/* We cast to void * and then to TYPE * because this avoids
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a warning about increasing the alignment requirement. */
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#define va_arg(AP, TYPE) \
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(AP = (__gnuc_va_list) ((char *) (AP) + __va_rounded_size (TYPE)), \
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*((TYPE *) (void *) ((char *) (AP) - __va_rounded_size (TYPE))))
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#endif /* _STDARG_H */
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#endif /* not alpha */
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#endif /* not i960 */
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#endif /* not sparc */
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#endif /* not mips */
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#endif /* not hppa */
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#endif /* not i860 */
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#endif /* not m88k */
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#ifdef _STDARG_H
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/* Define va_list, if desired, from __gnuc_va_list. */
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/* We deliberately do not define va_list when called from
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stdio.h, because ANSI C says that stdio.h is not supposed to define
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va_list. stdio.h needs to have access to that data type,
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but must not use that name. It should use the name __gnuc_va_list,
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which is safe because it is reserved for the implementation. */
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#ifdef _HIDDEN_VA_LIST /* On OSF1, this means varargs.h is "half-loaded". */
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#undef _VA_LIST
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#endif
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#ifdef _BSD_VA_LIST
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#undef _BSD_VA_LIST
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#endif
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#ifdef __SVR4_2__
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/* SVR4.2 uses _VA_LIST for an internal alias for va_list,
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so we must avoid testing it and setting it here. */
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#ifndef _VA_LIST_
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#define _VA_LIST_
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typedef __gnuc_va_list va_list;
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#endif /* _VA_LIST_ */
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#else /* not __SVR4_2__ */
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/* The macro _VA_LIST_ is the same thing used by this file in Ultrix. */
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/* However, 4.3bsd-net2 uses it in a completely different way.
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So if we are in 4.3bsd-net2, pay no attention to _VA_LIST_. */
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#if ! defined (_VA_LIST_) || defined (_ANSI_H_) || defined (__BSD_NET2__) || defined (____386BSD____)
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/* The macro _VA_LIST is used in SCO Unix 3.2. */
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#ifndef _VA_LIST
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#if !(defined (_ANSI_H_) || defined (__BSD_NET2__) || defined (____386BSD____))
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/* Don't mess with _VA_LIST_ at all, on 4.3bsd-net2. */
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#define _VA_LIST_
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#endif /* not net2 */
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#define _VA_LIST
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typedef __gnuc_va_list va_list;
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#endif /* not _VA_LIST */
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#endif /* not _VA_LIST_ (or _ANSI_H_) */
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#endif /* not __SVR4_2__ */
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#endif /* _STDARG_H */
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#endif /* __GNUC__ */
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#endif /* not _ANSI_STDARG_H_ */
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#endif /* not _STDARG_H */
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