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1.1 ! root 1: /* stdarg.h for GNU. ! 2: Note that the type used in va_arg is supposed to match the ! 3: actual type **after default promotions**. ! 4: Thus, va_arg (..., short) is not valid. */ ! 5: ! 6: #ifndef _STDARG_H ! 7: #ifndef _ANSI_STDARG_H_ ! 8: #ifndef __need___va_list ! 9: #define _STDARG_H ! 10: #define _ANSI_STDARG_H_ ! 11: #endif /* not __need___va_list */ ! 12: #undef __need___va_list ! 13: ! 14: #ifdef __clipper__ ! 15: #include <va-clipper.h> ! 16: #else ! 17: #ifdef __m88k__ ! 18: #include <va-m88k.h> ! 19: #else ! 20: #ifdef __i860__ ! 21: #include <va-i860.h> ! 22: #else ! 23: #ifdef __hppa__ ! 24: #include <va-pa.h> ! 25: #else ! 26: #ifdef __mips__ ! 27: #include <va-mips.h> ! 28: #else ! 29: #ifdef __sparc__ ! 30: #include <va-sparc.h> ! 31: #else ! 32: #ifdef __i960__ ! 33: #include <va-i960.h> ! 34: #else ! 35: #ifdef __alpha__ ! 36: #include <va-alpha.h> ! 37: #else ! 38: #if defined (__H8300__) || defined (__H8300H__) ! 39: #include <va-h8300.h> ! 40: #else ! 41: ! 42: /* Define __gnuc_va_list. */ ! 43: ! 44: #ifndef __GNUC_VA_LIST ! 45: #define __GNUC_VA_LIST ! 46: #if defined(__svr4__) || defined(_AIX) || defined(_M_UNIX) ! 47: typedef char *__gnuc_va_list; ! 48: #else ! 49: typedef void *__gnuc_va_list; ! 50: #endif ! 51: #endif ! 52: ! 53: /* Define the standard macros for the user, ! 54: if this invocation was from the user program. */ ! 55: #ifdef _STDARG_H ! 56: ! 57: /* Amount of space required in an argument list for an arg of type TYPE. ! 58: TYPE may alternatively be an expression whose type is used. */ ! 59: ! 60: #if defined(sysV68) ! 61: #define __va_rounded_size(TYPE) \ ! 62: (((sizeof (TYPE) + sizeof (short) - 1) / sizeof (short)) * sizeof (short)) ! 63: #else ! 64: #define __va_rounded_size(TYPE) \ ! 65: (((sizeof (TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int)) ! 66: #endif ! 67: ! 68: #define va_start(AP, LASTARG) \ ! 69: (AP = ((__gnuc_va_list) __builtin_next_arg (LASTARG))) ! 70: ! 71: #undef va_end ! 72: void va_end (__gnuc_va_list); /* Defined in libgcc.a */ ! 73: #define va_end(AP) ! 74: ! 75: /* We cast to void * and then to TYPE * because this avoids ! 76: a warning about increasing the alignment requirement. */ ! 77: ! 78: #if defined (__arm__) || defined (__i386__) || defined (__i860__) || defined (__ns32000__) || defined (__vax__) ! 79: /* This is for little-endian machines; small args are padded upward. */ ! 80: #define va_arg(AP, TYPE) \ ! 81: (AP = (__gnuc_va_list) ((char *) (AP) + __va_rounded_size (TYPE)), \ ! 82: *((TYPE *) (void *) ((char *) (AP) - __va_rounded_size (TYPE)))) ! 83: #else /* big-endian */ ! 84: /* This is for big-endian machines; small args are padded downward. */ ! 85: #define va_arg(AP, TYPE) \ ! 86: (AP = (__gnuc_va_list) ((char *) (AP) + __va_rounded_size (TYPE)), \ ! 87: *((TYPE *) (void *) ((char *) (AP) - ((sizeof (TYPE) < 4 \ ! 88: ? sizeof (TYPE) \ ! 89: : __va_rounded_size (TYPE)))))) ! 90: #endif /* big-endian */ ! 91: #endif /* _STDARG_H */ ! 92: ! 93: #endif /* not h8300 */ ! 94: #endif /* not alpha */ ! 95: #endif /* not i960 */ ! 96: #endif /* not sparc */ ! 97: #endif /* not mips */ ! 98: #endif /* not hppa */ ! 99: #endif /* not i860 */ ! 100: #endif /* not m88k */ ! 101: #endif /* not clipper */ ! 102: ! 103: #ifdef _STDARG_H ! 104: /* Define va_list, if desired, from __gnuc_va_list. */ ! 105: /* We deliberately do not define va_list when called from ! 106: stdio.h, because ANSI C says that stdio.h is not supposed to define ! 107: va_list. stdio.h needs to have access to that data type, ! 108: but must not use that name. It should use the name __gnuc_va_list, ! 109: which is safe because it is reserved for the implementation. */ ! 110: ! 111: #ifdef _HIDDEN_VA_LIST /* On OSF1, this means varargs.h is "half-loaded". */ ! 112: #undef _VA_LIST ! 113: #endif ! 114: ! 115: #ifdef _BSD_VA_LIST ! 116: #undef _BSD_VA_LIST ! 117: #endif ! 118: ! 119: #ifdef __svr4__ ! 120: /* SVR4.2 uses _VA_LIST for an internal alias for va_list, ! 121: so we must avoid testing it and setting it here. ! 122: SVR4 uses _VA_LIST as a flag in stdarg.h, but we should ! 123: have no conflict with that. */ ! 124: #ifndef _VA_LIST_ ! 125: #define _VA_LIST_ ! 126: #ifdef __i860__ ! 127: #ifndef _VA_LIST ! 128: #define _VA_LIST va_list ! 129: #endif ! 130: #endif /* __i860__ */ ! 131: typedef __gnuc_va_list va_list; ! 132: #endif /* _VA_LIST_ */ ! 133: #else /* not __svr4__ */ ! 134: ! 135: /* The macro _VA_LIST_ is the same thing used by this file in Ultrix. ! 136: But on BSD NET2 we must not test or define or undef it. ! 137: (Note that the comments in NET 2's ansi.h ! 138: are incorrect for _VA_LIST_--see stdio.h!) */ ! 139: #if !defined (_VA_LIST_) || defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__FreeBSD__) ! 140: /* The macro _VA_LIST is used in SCO Unix 3.2. */ ! 141: #ifndef _VA_LIST ! 142: /* The macro _VA_LIST_T_H is used in the Bull dpx2 */ ! 143: #ifndef _VA_LIST_T_H ! 144: #define _VA_LIST_T_H ! 145: #if !(defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__FreeBSD__)) ! 146: #define _VA_LIST_ ! 147: #endif ! 148: #define _VA_LIST ! 149: typedef __gnuc_va_list va_list; ! 150: #endif /* not _VA_LIST_T_H */ ! 151: #endif /* not _VA_LIST */ ! 152: #endif /* not _VA_LIST_ */ ! 153: ! 154: #endif /* not __svr4__ */ ! 155: ! 156: #endif /* _STDARG_H */ ! 157: ! 158: #endif /* not _ANSI_STDARG_H_ */ ! 159: #endif /* not _STDARG_H */
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