frexp

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

    NAME
           frexp  -  convert  floating-point number to fractional and
           integral components

    SYNOPSIS
           #include <math.h>

           double frexp(double x, int *exp);

    DESCRIPTION
           The frexp() function is used to split the number x into  a
           normalized  fraction  and  an  exponent which is stored in
           exp.

    RETURN VALUE
           The frexp() function returns the normalized fraction.   If
           the  argument  x is not zero, the normalized fraction is x
           times a power of two, and  is  always  in  the  range  1/2
           (inclusive) to 1 (exclusive).  If x is zero, then the nor-
           malized fraction is zero and zero is stored in exp.

    CONFORMING TO
           SVID 3, POSIX, BSD 4.3, ISO 9899

### SEE ALSO

, modf,

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    GNU                        June 6, 1993                         1

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