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SIGNIFICAND

Linux Programmer's Manual (3)
2009-02-04
 

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

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Index

NAME
SYNOPSIS
DESCRIPTION
CONFORMING TO
SEE ALSO
COLOPHON

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Time: 21:43:02 GMT, July 12, 2014