significand
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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);
[Note] Note
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
significand(), significandf(), significandl():
_SVID_SOURCE || _BSD_SOURCE
[Note] Note

Link with −lm.

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.

SEE ALSO

ilogb(3), scalb(3)

COLOPHON

This page is part of release 2.79 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/.


  Copyright 2002 Walter Harms (walter.harmsinformatik.uni-oldenburg.de)
Distributed under GPL
based on glibc infopages
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