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Annotation of gcc/gstddef.h, revision 1.1

1.1     ! root        1: #ifndef _STDDEF_H
        !             2: #ifndef _STDDEF_H_
        !             3: #define _STDDEF_H
        !             4: #define _STDDEF_H_
        !             5: 
        !             6: #ifndef __sys_stdtypes_h
        !             7: /* This avoids lossage on Sunos but only if stdtypes.h comes first.
        !             8:    There's no way to win with the other order!  Sun lossage.  */
        !             9: 
        !            10: /* In case nobody has defined these types, but we aren't running under
        !            11:    GCC 2.00, make sure that __PTRDIFF_TYPE__, __SIZE__TYPE__, and
        !            12:    __WCHAR_TYPE__ have reasonable values.  This can happen if the
        !            13:    parts of GCC is compiled by an older compiler, that actually
        !            14:    include gstddef.h, such as collect2.  */
        !            15: 
        !            16: /* Signed type of difference of two pointers.  */
        !            17: 
        !            18: #ifndef _PTRDIFF_T     /* in case <sys/types.h> has defined it. */
        !            19: #ifndef _T_PTRDIFF
        !            20: #ifndef __PTRDIFF_T
        !            21: #ifndef _PTRDIFF_T_
        !            22: #ifndef ___int_ptrdiff_t_h
        !            23: #define _PTRDIFF_T
        !            24: #define _T_PTRDIFF
        !            25: #define __PTRDIFF_T
        !            26: #define _PTRDIFF_T_
        !            27: #define ___int_ptrdiff_t_h
        !            28: #ifndef __PTRDIFF_TYPE__
        !            29: #define __PTRDIFF_TYPE__ long int
        !            30: #endif
        !            31: typedef __PTRDIFF_TYPE__ ptrdiff_t;
        !            32: #endif /* ___int_ptrdiff_t_h */
        !            33: #endif /* _PTRDIFF_T_ */
        !            34: #endif /* __PTRDIFF_T */
        !            35: #endif /* _T_PTRDIFF */
        !            36: #endif /* _PTRDIFF_T */
        !            37: 
        !            38: /* Unsigned type of `sizeof' something.  */
        !            39: 
        !            40: #ifndef _SIZE_T        /* in case <sys/types.h> has defined it. */
        !            41: #ifndef _T_SIZE
        !            42: #ifndef __SIZE_T
        !            43: #ifndef _SIZE_T_
        !            44: #ifndef ___int_size_t_h
        !            45: #define _SIZE_T
        !            46: #define _T_SIZE
        !            47: #define __SIZE_T
        !            48: #define _SIZE_T_
        !            49: #define ___int_size_t_h
        !            50: #ifndef __SIZE_TYPE__
        !            51: #define __SIZE_TYPE__ long unsigned int
        !            52: #endif
        !            53: typedef __SIZE_TYPE__ size_t;
        !            54: #endif /* ___int_size_t_h */
        !            55: #endif /* _SIZE_T_ */
        !            56: #endif /* __SIZE_T */
        !            57: #endif /* _T_SIZE */
        !            58: #endif /* _SIZE_T */
        !            59: 
        !            60: /* Data type for wide chars.  */
        !            61: 
        !            62: #ifndef _WCHAR_T
        !            63: #ifndef _T_WCHAR_
        !            64: #ifndef _T_WCHAR
        !            65: #ifndef __WCHAR_T
        !            66: #ifndef _WCHAR_T_
        !            67: #ifndef ___int_wchar_t_h
        !            68: #define _WCHAR_T
        !            69: #define _T_WCHAR_
        !            70: #define _T_WCHAR
        !            71: #define __WCHAR_T
        !            72: #define _WCHAR_T_
        !            73: #define ___int_wchar_t_h
        !            74: #ifndef __WCHAR_TYPE__
        !            75: #define __WCHAR_TYPE__ int
        !            76: #endif
        !            77: typedef __WCHAR_TYPE__ wchar_t;
        !            78: #endif
        !            79: #endif
        !            80: #endif
        !            81: #endif
        !            82: #endif
        !            83: #endif
        !            84: 
        !            85: #endif /* __sys_stdtypes_h */
        !            86: 
        !            87: /* A null pointer constant.  */
        !            88: 
        !            89: #undef NULL            /* in case <stdio.h> has defined it. */
        !            90: #define NULL ((void *)0)
        !            91: 
        !            92: /* Offset of member MEMBER in a struct of type TYPE.  */
        !            93: 
        !            94: #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
        !            95: 
        !            96: #endif /* _STDDEF_H_ */
        !            97: #endif /* _STDDEF_H */

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