frexp man page on 4.4BSD

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FREXP(3)		 BSD Library Functions Manual		      FREXP(3)

NAME
     frexp — convert floating-point number to fractional and integral compo‐
     nents

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
     object 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.

SEE ALSO
     ldexp(3), modf(3), math(3)

STANDARDS
     The frexp() function conforms to ANSI X3.159-1989 (“ANSI C89”).

BSD				 June 4, 1993				   BSD
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