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Annotation of researchv9/cmd/emacs/stddefs.h, revision 1.1

1.1     ! root        1: /* This file contains standard definitions of useful C constants
        !             2:  * and macros.         J. Leth, IH 6E-318
        !             3:  */
        !             4: 
        !             5: 
        !             6: typedef int BOOLEAN;
        !             7: 
        !             8: #define                HIGHB           0xff00
        !             9: #define                LOWB            0x00ff
        !            10: 
        !            11: #define                TRUE            1
        !            12: #define                FALSE           0
        !            13: 
        !            14: #define                NUL             '\0'
        !            15: 
        !            16: #define                makeint(hi,lo)  ((hi << 8) | (lo & LOWB))
        !            17:        /* Makes an int out of two bytes */
        !            18: 
        !            19: #define usage(x)       fprintf(stderr, x); exit(1)
        !            20: #define errexit(x,arg) fprintf(stderr, x, arg); perror(""); exit(1)
        !            21: #define errmsg(x,arg)  fprintf(stderr, x, arg)
        !            22: 
        !            23: #define IDENT(x)x
        !            24: #define CONCAT(x,y)IDENT(x)y
        !            25:        /* Concatenates two symbols into one, (compiler or C
        !            26:         * preprocessor symbols).
        !            27:         */
        !            28: #define QUOTE(x)"x"
        !            29: 
        !            30: #ifndef NDEBUG
        !            31: #      define assert(ex) if (!(ex)) {\
        !            32:        fprintf(stderr,"Assertion '%s' failed: file %s, line %d\n",\
        !            33:                QUOTE(ex), __FILE__, __LINE__);\
        !            34:        exit(1);\
        !            35:        }
        !            36: #else
        !            37: #      define assert(ex)
        !            38: #endif
        !            39: 
        !            40: #define ESC '\033'
        !            41: 
        !            42: #ifdef TRACEFLAG
        !            43: #define TRACE(x,y) fprintf(stderr, "TRACE: "); fprintf(stderr, x, y)
        !            44: #define TRACE2(x,y,z) fprintf(stderr, "TRACE: "); fprintf(stderr, x, y, z)
        !            45: #else
        !            46: #define TRACE(x,y)
        !            47: #define TRACE2(x,y,z)
        !            48: #endif

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