개요

• 솔라나라에 설명된 어플리케이션에 대해 맨 페이지를 찾아 출력한다.
• MAN 페이지에 대한 설명은 윈디하나의 솔라나라: MAN 페이지을 참고하자.
• svcadm(1M)을 검색하려면 섹션에서 1M 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.

isnan(3m)

Mathematical Library Functions                                       isnan(3M)



NAME
       isnan - test for NaN

SYNOPSIS
       cc [ flag... ] file... -lm [ library... ]
       #include <math.h>

       int isnan(double x);


       c99 [ flag... ] file... -lm [ library... ]
       #include <math.h>

       int isnan(real—floating x);

DESCRIPTION
       In C90 mode, the isnan() function tests whether x is NaN.


       In C99 mode, the isnan() macro determines whether its argument value is
       NaN. First, an argument represented in a format wider than its semantic
       type is converted to its semantic type. The determination is then based
       on the type of the argument.

RETURN VALUES
       Both the isnan() function and macro return non-zero if and only if x is
       NaN.

ERRORS
       No errors are defined.

WARNINGS
       In  C99  mode,  the  practice  of  explicitly supplying a prototype for
       isnan() after the line

         #include <math.h>



       is obsolete and will no longer work.

ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i)


       ATTRIBUTE TYPEATTRIBUTE VALUE _ Interface StabilityCommitted  _  Avail‐
       abilitysystem/library/math   _   MT-LevelMT-Safe  _  StandardSee  stan‐
       dards(7).


SEE ALSO
       math.h(3HEAD), fpclassify(3M), isfinite(3M),  isinf(3M),  isnormal(3M),
       signbit(3M), attributes(7), standards(7)



Solaris 11.4                     27 Sept 2016                        isnan(3M)