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Annotation of 42BSD/ucb/pascal/pdx/defs.h, revision 1.1

1.1     ! root        1: /* Copyright (c) 1982 Regents of the University of California */
        !             2: 
        !             3: /* static char sccsid[] = "@(#)defs.h 1.2 1/18/82"; */
        !             4: 
        !             5: /*
        !             6:  * Global debugger defines.
        !             7:  *
        !             8:  * All files include this header.
        !             9:  */
        !            10: 
        !            11: #include <stdio.h>
        !            12: 
        !            13: /*
        !            14:  * Since C does not allow forward referencing of types,
        !            15:  * all the global types are declared here.
        !            16:  */
        !            17: 
        !            18: #define LOCAL static
        !            19: #define NIL 0
        !            20: 
        !            21: typedef int BOOLEAN;
        !            22: 
        !            23: #define FALSE 0
        !            24: #define TRUE 1
        !            25: 
        !            26: typedef unsigned int ADDRESS;          /* object code addresses */
        !            27: typedef short LINENO;                  /* source file line numbers */
        !            28: typedef struct sym SYM;                        /* symbol information structure */
        !            29: typedef struct symtab SYMTAB;          /* symbol table */
        !            30: typedef struct node NODE;              /* expression tree node */
        !            31: typedef short OP;                      /* tree operator */
        !            32: typedef struct opinfo OPINFO;          /* tree operator information table */
        !            33: typedef unsigned int WORD;             /* machine word */
        !            34: typedef unsigned char BYTE;            /* machine byte */
        !            35: typedef struct frame FRAME;            /* runtime activation record */
        !            36: 
        !            37: /*
        !            38:  * Definitions of standard C library routines that aren't in the
        !            39:  * standard I/O library, but which are generally useful.
        !            40:  */
        !            41: 
        !            42: extern long atol();            /* ascii to long */
        !            43: extern double atof();          /* ascii to floating point */
        !            44: extern char *mktemp();         /* make a temporary file name */
        !            45: 
        !            46: /*
        !            47:  * Definitions of library routines.
        !            48:  */
        !            49: 
        !            50: char *cmdname;                 /* name of command for error messages */
        !            51: char *errfilename;             /* current file associated with error */
        !            52: short errlineno;               /* line number associated with error */
        !            53: 
        !            54: error();                       /* print an error message */
        !            55: panic();                       /* print error message and exit */
        !            56: short numerrors();             /* return number of errors since last call */
        !            57: 
        !            58: /*
        !            59:  * defintions for doing memory allocation
        !            60:  */
        !            61: 
        !            62: extern char *malloc();
        !            63: 
        !            64: #define alloc(n, type) ((type *) malloc((unsigned) (n) * sizeof(type)))
        !            65: #define dispose(p)     { free((char *) p); p = NIL; }
        !            66: 
        !            67: /*
        !            68:  * macros for doing freads + fwrites
        !            69:  */
        !            70: 
        !            71: #define get(fp, var)   fread((char *) &(var), sizeof(var), 1, fp)
        !            72: #define put(fp, var)   fwrite((char *) &(var), sizeof(var), 1, fp)
        !            73: 
        !            74: /*
        !            75:  * string definitions
        !            76:  */
        !            77: 
        !            78: extern char *strcpy();
        !            79: extern int strlen();
        !            80: 
        !            81: #define strdup(s)              strcpy(malloc((unsigned) strlen(s) + 1), s)
        !            82: #define streq(s1, s2)  (strcmp(s1, s2) == 0)

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