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Annotation of 42BSD/usr.lib/libpc/PRED.c, revision 1.1

1.1     ! root        1: /* Copyright (c) 1979 Regents of the University of California */
        !             2: 
        !             3: static char sccsid[] = "@(#)PRED.c 1.4 6/10/81";
        !             4: 
        !             5: 
        !             6: long
        !             7: PRED(value, lower, upper)
        !             8: 
        !             9:        long    value;
        !            10:        long    lower;
        !            11:        long    upper;
        !            12: {
        !            13:        if (value == lower) {
        !            14:                ERROR("Cannot take pred of first element of a range\n");
        !            15:                return;
        !            16:        }
        !            17:        value--;
        !            18:        if (value < lower || value > upper) {
        !            19:                ERROR("Value of %D is out of range\n", value);
        !            20:                return;
        !            21:        }
        !            22:        return  value;
        !            23: }

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