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

CentOS 2.1AS

(Slurm)

finite(3)


ISINF

ISINF

NAME
SYNOPSIS
DESCRIPTION
CONFORMING TO

NAME

isinf, isnan, finite − test for infinity or not-a-number (NaN)

SYNOPSIS

#include <math.h>

int isinf(double value);

int isnan(double value);

int finite(double value);

DESCRIPTION

The isinf() function returns −1 if value represents negative infinity, 1 if value represents positive infinity, and 0 otherwise.

The isnan() function returns a non-zero value if value is "not-a-number" (NaN), and 0 otherwise.

The finite() function returns a non-zero value if value is neither infinite nor a "not-a-number" (NaN) value, and 0 otherwise.

CONFORMING TO

BSD 4.3



finite(3)