Flashnux

GNU/Linux man pages

Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :

ISBN : 978-2-7460-9712-4
EAN : 9782746097124
(Editions ENI)

GNU/Linux

Debian 6.0.6

(Squeeze)

significandf(3)
SIGNIFICAND

SIGNIFICAND

NAME
SYNOPSIS
DESCRIPTION
CONFORMING TO
SEE ALSO
COLOPHON

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/.

significandf(3)