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1.1 ! root 1: #ifndef _STDDEF_H ! 2: #ifndef _STDDEF_H_ ! 3: #ifndef _ANSI_STDDEF_H ! 4: #ifndef __STDDEF_H__ ! 5: ! 6: /* Any one of these symbols __need_* means that GNU libc ! 7: wants us just to define one data type. So don't define ! 8: the symbols that indicate this file's entire job has been done. */ ! 9: #if (!defined(__need_wchar_t) && !defined(__need_size_t) \ ! 10: && !defined(__need_ptrdiff_t) && !defined(__need_NULL)) ! 11: #define _STDDEF_H ! 12: #define _STDDEF_H_ ! 13: /* [email protected] says the NeXT needs this. */ ! 14: #define _ANSI_STDDEF_H ! 15: /* Irix 5.1 needs this. */ ! 16: #define __STDDEF_H__ ! 17: #endif ! 18: ! 19: #ifndef __sys_stdtypes_h ! 20: /* This avoids lossage on SunOS but only if stdtypes.h comes first. ! 21: There's no way to win with the other order! Sun lossage. */ ! 22: ! 23: /* On 4.3bsd-net2, make sure ansi.h is included, so we have ! 24: one less case to deal with in the following. */ ! 25: #if defined (__BSD_NET2__) || defined (____386BSD____) ! 26: #include <machine/ansi.h> ! 27: #endif ! 28: ! 29: /* In 4.3bsd-net2, machine/ansi.h defines these symbols, which are ! 30: defined if the corresponding type is *not* defined. */ ! 31: #ifdef _ANSI_H_ ! 32: #ifndef _SIZE_T_ ! 33: #define _SIZE_T ! 34: #endif ! 35: #ifndef _PTRDIFF_T_ ! 36: #define _PTRDIFF_T ! 37: #endif ! 38: #ifndef _WCHAR_T_ ! 39: #define _WCHAR_T ! 40: #endif ! 41: /* Undef _FOO_T_ if we are supposed to define foo_t. */ ! 42: #if defined (__need_ptrdiff_t) || defined (_STDDEF_H_) ! 43: #undef _PTRDIFF_T_ ! 44: #endif ! 45: #if defined (__need_size_t) || defined (_STDDEF_H_) ! 46: #undef _SIZE_T_ ! 47: #endif ! 48: #if defined (__need_wchar_t) || defined (_STDDEF_H_) ! 49: #undef _WCHAR_T_ ! 50: #endif ! 51: #endif /* _ANSI_H_ */ ! 52: ! 53: /* Sequent's header files use _PTRDIFF_T_ in some conflicting way. ! 54: Just ignore it. */ ! 55: #if defined (__sequent__) && defined (_PTRDIFF_T_) ! 56: #undef _PTRDIFF_T_ ! 57: #endif ! 58: ! 59: /* In case nobody has defined these types, but we aren't running under ! 60: GCC 2.00, make sure that __PTRDIFF_TYPE__, __SIZE__TYPE__, and ! 61: __WCHAR_TYPE__ have reasonable values. This can happen if the ! 62: parts of GCC is compiled by an older compiler, that actually ! 63: include gstddef.h, such as collect2. */ ! 64: ! 65: /* Signed type of difference of two pointers. */ ! 66: ! 67: /* Define this type if we are doing the whole job, ! 68: or if we want this type in particular. */ ! 69: #if defined (_STDDEF_H) || defined (__need_ptrdiff_t) ! 70: #ifndef _PTRDIFF_T /* in case <sys/types.h> has defined it. */ ! 71: #ifndef _T_PTRDIFF_ ! 72: #ifndef _T_PTRDIFF ! 73: #ifndef __PTRDIFF_T ! 74: #ifndef _PTRDIFF_T_ ! 75: #ifndef ___int_ptrdiff_t_h ! 76: #ifndef _GCC_PTRDIFF_T ! 77: #define _PTRDIFF_T ! 78: #define _T_PTRDIFF_ ! 79: #define _T_PTRDIFF ! 80: #define __PTRDIFF_T ! 81: #define _PTRDIFF_T_ ! 82: #define ___int_ptrdiff_t_h ! 83: #define _GCC_PTRDIFF_T ! 84: #ifndef __PTRDIFF_TYPE__ ! 85: #define __PTRDIFF_TYPE__ long int ! 86: #endif ! 87: typedef __PTRDIFF_TYPE__ ptrdiff_t; ! 88: #endif /* _GCC_PTRDIFF_T */ ! 89: #endif /* ___int_ptrdiff_t_h */ ! 90: #endif /* _PTRDIFF_T_ */ ! 91: #endif /* __PTRDIFF_T */ ! 92: #endif /* _T_PTRDIFF */ ! 93: #endif /* _T_PTRDIFF_ */ ! 94: #endif /* _PTRDIFF_T */ ! 95: ! 96: /* If this symbol has done its job, get rid of it. */ ! 97: #undef __need_ptrdiff_t ! 98: ! 99: #endif /* _STDDEF_H or __need_ptrdiff_t. */ ! 100: ! 101: /* Unsigned type of `sizeof' something. */ ! 102: ! 103: /* Define this type if we are doing the whole job, ! 104: or if we want this type in particular. */ ! 105: #if defined (_STDDEF_H) || defined (__need_size_t) ! 106: #ifndef _SIZE_T /* in case <sys/types.h> has defined it. */ ! 107: #ifndef _SYS_SIZE_T_H ! 108: #ifndef _T_SIZE_ ! 109: #ifndef _T_SIZE ! 110: #ifndef __SIZE_T ! 111: #ifndef _SIZE_T_ ! 112: #ifndef ___int_size_t_h ! 113: #ifndef _GCC_SIZE_T ! 114: #ifndef _SIZET_ ! 115: #ifndef __size_t ! 116: #define _SIZE_T ! 117: #define _SYS_SIZE_T_H ! 118: #define _T_SIZE_ ! 119: #define _T_SIZE ! 120: #define __SIZE_T ! 121: #define _SIZE_T_ ! 122: #define ___int_size_t_h ! 123: #define _GCC_SIZE_T ! 124: #define _SIZET_ ! 125: #define __size_t ! 126: #ifndef __SIZE_TYPE__ ! 127: #define __SIZE_TYPE__ long unsigned int ! 128: #endif ! 129: #if !(defined (__GNUG__) && defined (size_t)) ! 130: typedef __SIZE_TYPE__ size_t; ! 131: #endif /* !(defined (__GNUG__) && defined (size_t)) */ ! 132: #endif /* __size_t */ ! 133: #endif /* _SIZET_ */ ! 134: #endif /* _GCC_SIZE_T */ ! 135: #endif /* ___int_size_t_h */ ! 136: #endif /* _SIZE_T_ */ ! 137: #endif /* __SIZE_T */ ! 138: #endif /* _T_SIZE */ ! 139: #endif /* _T_SIZE_ */ ! 140: #endif /* _SYS_SIZE_T_H */ ! 141: #endif /* _SIZE_T */ ! 142: #undef __need_size_t ! 143: #endif /* _STDDEF_H or __need_size_t. */ ! 144: ! 145: ! 146: /* Wide character type. ! 147: Locale-writers should change this as necessary to ! 148: be big enough to hold unique values not between 0 and 127, ! 149: and not (wchar_t) -1, for each defined multibyte character. */ ! 150: ! 151: /* Define this type if we are doing the whole job, ! 152: or if we want this type in particular. */ ! 153: #if defined (_STDDEF_H) || defined (__need_wchar_t) ! 154: #ifndef _WCHAR_T ! 155: #ifndef _T_WCHAR_ ! 156: #ifndef _T_WCHAR ! 157: #ifndef __WCHAR_T ! 158: #ifndef _WCHAR_T_ ! 159: #ifndef _WCHAR_T_H ! 160: #ifndef ___int_wchar_t_h ! 161: #ifndef __INT_WCHAR_T_H ! 162: #ifndef _GCC_WCHAR_T ! 163: #define _WCHAR_T ! 164: #define _T_WCHAR_ ! 165: #define _T_WCHAR ! 166: #define __WCHAR_T ! 167: #define _WCHAR_T_ ! 168: #define _WCHAR_T_H ! 169: #define ___int_wchar_t_h ! 170: #define __INT_WCHAR_T_H ! 171: #define _GCC_WCHAR_T ! 172: #ifndef __WCHAR_TYPE__ ! 173: #define __WCHAR_TYPE__ int ! 174: #endif ! 175: #ifdef __GNUG__ ! 176: /* In C++, wchar_t is a distinct basic type, ! 177: and we can expect __wchar_t to be defined by cc1plus. */ ! 178: typedef __wchar_t wchar_t; ! 179: #else ! 180: /* In C, cpp tells us which type to make an alias for. */ ! 181: typedef __WCHAR_TYPE__ wchar_t; ! 182: #endif ! 183: #endif ! 184: #endif ! 185: #endif ! 186: #endif ! 187: #endif ! 188: #endif ! 189: #endif ! 190: #endif ! 191: #endif ! 192: #undef __need_wchar_t ! 193: #endif /* _STDDEF_H or __need_wchar_t. */ ! 194: ! 195: /* In 4.3bsd-net2, leave these undefined to indicate that size_t, etc. ! 196: are already defined. */ ! 197: #ifdef _ANSI_H_ ! 198: #ifdef _GCC_PTRDIFF_T_ ! 199: #undef _PTRDIFF_T_ ! 200: #endif ! 201: #ifdef _GCC_SIZE_T_ ! 202: #undef _SIZE_T_ ! 203: #endif ! 204: #ifdef _GCC_WCHAR_T_ ! 205: #undef _WCHAR_T_ ! 206: #endif ! 207: #endif /* _ANSI_H_ */ ! 208: ! 209: #endif /* __sys_stdtypes_h */ ! 210: ! 211: /* A null pointer constant. */ ! 212: ! 213: #if defined (_STDDEF_H) || defined (__need_NULL) ! 214: #undef NULL /* in case <stdio.h> has defined it. */ ! 215: #define NULL ((void *)0) ! 216: #endif /* NULL not defined and <stddef.h> or need NULL. */ ! 217: #undef __need_NULL ! 218: ! 219: #ifdef _STDDEF_H ! 220: ! 221: /* Offset of member MEMBER in a struct of type TYPE. */ ! 222: ! 223: #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) ! 224: ! 225: #endif /* _STDDEF_H was defined this time */ ! 226: ! 227: #endif /* __STDDEF_H__ was not defined before */ ! 228: #endif /* _ANSI_STDDEF_H was not defined before */ ! 229: #endif /* _STDDEF_H_ was not defined before */ ! 230: #endif /* _STDDEF_H was not defined before */
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