FREXP(3)                                                              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 = x∗2n
       indirectly through eptr.

       Ldexp returns the quantity value2exp.

       Modf returns the positive fractional part of value and stores the inte‐
       ger part indirectly through iptr.


7th Edition                      May 15, 1985                         FREXP(3)
 
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