SIGNIFICAND man page on Debian

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

NAME
       significand,  significandf,  significandl  -  get mantissa of floating-
       point number

SYNOPSIS
       #include <math.h>

       double significand(double x);
       float significandf(float x);
       long double significandl(long double x);

       Link with -lm.

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       significand(), significandf(), significandl():
	   _SVID_SOURCE || _BSD_SOURCE

DESCRIPTION
       The significand() function returns the mantissa	of  x  scaled  to  the
       range [1,2).  It is equivalent to

	   scalb(x, (double) -ilogb(x))

       This  function  exists mainly for use in certain standardized tests for
       IEEE 754 conformance.

CONFORMING TO
       These functions are nonstandard; the double version is available	 on  a
       number of other systems.

SEE ALSO
       ilogb(3), scalb(3)

COLOPHON
       This  page  is  part of release 3.27 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

GNU				  2009-02-04			SIGNIFICAND(3)
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