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Annotation of researchv10no/cmd/xref/input.h, revision 1.1

1.1     ! root        1: #ifndef SRBHDR
        !             2: #include       "defs.h"
        !             3: #endif
        !             4: 
        !             5: 
        !             6: STRUCT fileblk FILEBLK;
        !             7: STRUCT filehdr FILEHDR;
        !             8: STRUCT fileblk *FILE;
        !             9: #define NIL    0
        !            10: 
        !            11: /* the following nonsense is required
        !            12:  * because casts turn an Lvalue
        !            13:  * into an Rvalue so two cheats
        !            14:  * are necessary, one for each context.
        !            15:  */
        !            16: union { int _cheat;};
        !            17: #define Lcheat(a)      ((a)._cheat)
        !            18: #define Rcheat(a)      ((int)(a))
        !            19: 
        !            20: #define        BUFSIZ  64
        !            21: struct fileblk {
        !            22:        UFD     fdes;
        !            23:        POS     flin;
        !            24:        BOOL    feof;
        !            25:        CHAR    fsiz;
        !            26:        STRING  fnxt;
        !            27:        STRING  fend;
        !            28:        FILE    fstak;
        !            29:        CHAR    fbuf[BUFSIZ];
        !            30: };
        !            31: 
        !            32: /* for files not used with file descriptors */
        !            33: struct filehdr {
        !            34:        UFD     fdes;
        !            35:        POS     flin;
        !            36:        BOOL    feof;
        !            37:        CHAR    fsiz;
        !            38:        STRING  fnxt;
        !            39:        STRING  fend;
        !            40:        FILE    fstak;
        !            41:        CHAR    _fbuf[1];
        !            42: };
        !            43: 
        !            44: #define EOF    (-1)
        !            45: INT    eof;

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