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Annotation of 3BSD/cmd/mip/xdefs.c, revision 1.1

1.1     ! root        1: # include "mfile1"
        !             2: 
        !             3: /*     communication between lexical routines  */
        !             4: 
        !             5: char   ftitle[100] = "";       /* title of the file */
        !             6: char   ititle[100] = "";       /* title of initial file */
        !             7: int    lineno;         /* line number of the input file */
        !             8: 
        !             9: CONSZ lastcon;  /* the last constant read by the lexical analyzer */
        !            10: double dcon;   /* the last double read by the lexical analyzer */
        !            11: 
        !            12: 
        !            13: /*     symbol table maintainence */
        !            14: 
        !            15: struct symtab stab[SYMTSZ+1];  /* one extra slot for scratch */
        !            16: 
        !            17: int    curftn;  /* "current" function */
        !            18: int    ftnno;  /* "current" function number */
        !            19: 
        !            20: int    curclass,         /* current storage class */
        !            21:        instruct,       /* "in structure" flag */
        !            22:        stwart,         /* for accessing names which are structure members or names */
        !            23:        blevel,         /* block level: 0 for extern, 1 for ftn args, >=2 inside function */
        !            24:        curdim;         /* current offset into the dimension table */
        !            25:        
        !            26: int    dimtab[ DIMTABSZ ];
        !            27: 
        !            28: int    paramstk[ PARAMSZ ];  /* used in the definition of function parameters */
        !            29: int    paramno;          /* the number of parameters */
        !            30: int    autooff,        /* the next unused automatic offset */
        !            31:        argoff, /* the next unused argument offset */
        !            32:        strucoff;       /*  the next structure offset position */
        !            33: int    regvar;         /* the next free register for register variables */
        !            34: int    minrvar;        /* the smallest that regvar gets witing a function */
        !            35: OFFSZ  inoff;          /* offset of external element being initialized */
        !            36: int    brkflag = 0;    /* complain about break statements not reached */
        !            37: 
        !            38: struct sw swtab[SWITSZ];  /* table for cases within a switch */
        !            39: struct sw *swp;  /* pointer to next free entry in swtab */
        !            40: int swx;  /* index of beginning of cases for current switch */
        !            41: 
        !            42: /* debugging flag */
        !            43: int xdebug = 0;
        !            44: 
        !            45: int strflg;  /* if on, strings are to be treated as lists */
        !            46: 
        !            47: int reached;   /* true if statement can be reached... */
        !            48: 
        !            49: int idname;    /* tunnel to buildtree for name id's */
        !            50: 
        !            51: 
        !            52: NODE node[TREESZ];
        !            53: 
        !            54: int cflag = 0;  /* do we check for funny casts */
        !            55: int hflag = 0;  /* do we check for various heuristics which may indicate errors */
        !            56: int pflag = 0;  /* do we check for portable constructions */
        !            57: 
        !            58: int brklab;
        !            59: int contlab;
        !            60: int flostat;
        !            61: int retlab = NOLAB;
        !            62: int retstat;
        !            63: 
        !            64: /* save array for break, continue labels, and flostat */
        !            65: 
        !            66: int asavbc[BCSZ];
        !            67: int *psavbc = asavbc ;
        !            68: 
        !            69: static char *
        !            70: ccnames[] = { /* names of storage classes */
        !            71:        "SNULL",
        !            72:        "AUTO",
        !            73:        "EXTERN",
        !            74:        "STATIC",
        !            75:        "REGISTER",
        !            76:        "EXTDEF",
        !            77:        "LABEL",
        !            78:        "ULABEL",
        !            79:        "MOS",
        !            80:        "PARAM",
        !            81:        "STNAME",
        !            82:        "MOU",
        !            83:        "UNAME",
        !            84:        "TYPEDEF",
        !            85:        "FORTRAN",
        !            86:        "ENAME",
        !            87:        "MOE",
        !            88:        "UFORTRAN",
        !            89:        "USTATIC",
        !            90:        };
        !            91: 
        !            92: char * scnames( c ) register c; {
        !            93:        /* return the name for storage class c */
        !            94:        static char buf[12];
        !            95:        if( c&FIELD ){
        !            96:                sprintf( buf, "FIELD[%d]", c&FLDSIZ );
        !            97:                return( buf );
        !            98:                }
        !            99:        return( ccnames[c] );
        !           100:        }

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