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Annotation of 43BSD/usr.lib/libpc/RANDOM.c, revision 1.1

1.1     ! root        1: /* Copyright (c) 1979 Regents of the University of California */
        !             2: 
        !             3: static char sccsid[] = "@(#)RANDOM.c 1.4 1/10/83";
        !             4: 
        !             5: #include "h00vars.h"
        !             6: 
        !             7: extern long RAND();
        !             8: 
        !             9: double
        !            10: RANDOM()
        !            11: {
        !            12:        double d;
        !            13:        long l;
        !            14: 
        !            15:        /*
        !            16:         * calculate (1103515245 * seed) mod 2^31-1
        !            17:         */
        !            18:        d = 1103515245.0 * _seed / 2147483647.0;
        !            19:        l = d;
        !            20:        d = d - l;
        !            21:        _seed = d * 2147483647.0;
        !            22:        /*
        !            23:         * want a value in the range 0..1
        !            24:         */
        !            25:        return(d);
        !            26: }

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