MirOS Manual: frexp(3)

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

NAME

     frexp - convert floating-point number to fractional and integral com-
     ponents

SYNOPSIS

     #include <math.h>

     double
     frexp(double value, int *exp);

DESCRIPTION

     The frexp() function breaks a floating-point number into a normalized
     fraction and an integral power of 2. It stores the integer in the int ob-
     ject pointed to by exp.

RETURN VALUES

     The frexp() function returns the value x, such that x is a double with
     magnitude in the interval [1/2, 1) or zero, and value equals x times 2
     raised to the power *exp. If value is zero, both parts of the result are
     zero.

STANDARDS

     The frexp() function conforms to ANSI X3.159-1989 ("ANSI C").

MirOS BSD #10-current            June 4, 1993                                1

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