significand(3)
NAME
significand, significandf, significandl - get mantissa of floatingpoint 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
COLOPHON
- This page is part of release 3.25 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/.