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Annotation of researchv10dc/libc/math/floor.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * floor and ceil-- greatest integer <= arg
        !             3:  * (resp least >=)
        !             4:  */
        !             5: 
        !             6: double modf();
        !             7: 
        !             8: double
        !             9: floor(d)
        !            10: double d;
        !            11: {
        !            12:        double fract;
        !            13: 
        !            14:        if (d<0.0) {
        !            15:                d = -d;
        !            16:                fract = modf(d, &d);
        !            17:                if (fract != 0.0)
        !            18:                        d += 1;
        !            19:                d = -d;
        !            20:        } else
        !            21:                modf(d, &d);
        !            22:        return(d);
        !            23: }
        !            24: 
        !            25: double
        !            26: ceil(d)
        !            27: double d;
        !            28: {
        !            29:        return(-floor(-d));
        !            30: }

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