frexp(3) — GENIX 4.1A



      FREXP(3)                GENIX Programmer's Manual                FREXP(3)



      NAME
           frexp, ldexp, modf - split into mantissa and exponent

      SYNOPSIS
           double frexp(value, eptr)
           double value;
           int *eptr;

           double ldexp(value, exp)
           double value;

           double modf(value, iptr)
           double value, *iptr;

      DESCRIPTION
           Frexp returns the mantissa of a double value as a  double  quantity,
           x,  of magnitude less than 1 and stores an integer n such that value
                n
           = x*2  indirectly through eptr.

                                             exp
           Ldexp returns the quantity value*2   .

           Modf returns the positive fractional part of value  and  stores  the
           integer part indirectly through iptr.
































      Printed 11/16/83                                                        1
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