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.\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
.\" Distributed under GPL, 2002-07-27 Walter Harms
.\" This was done with the help of the glibc manual.
.\"
.\" 2004-10-31, aeb, corrected
.\"
.\" Japanese Version Copyright (c) 2004-2005 Yuichi SATO
.\" all rights reserved.
.\" Translated Tue Jul 27 22:45:51 JST 2004
.\" by Yuichi SATO <ysato444@yahoo.co.jp>
.\" Updated & Modified Mon Jan 10 10:31:54 JST 2005 by Yuichi SATO
.\"
.TH fpclassify 3 2004-10-31 "" "Linux Programmer's Manual"
.SH ̾
fpclassify, isfinite, isnormal, isnan \- ưʬޥ
.SH
.nf
.B #include <math.h>
.sp
.BI "int fpclassify(" x );
.sp
.BI "int isfinite(" x );
.sp
.BI "int isnormal(" x );
.sp
.BI "int isnan(" x );
.sp
.BI "int isinf(" x );
.fi
.sp
-std=c99 ǥѥ뤷\-lm ǥ롣
.SH
ư̵¤ NaN Τ褦̤ͤĤȤǤ롣
ޥ
.BI fpclassify( x )
.I x
ɤΤ褦ʥפǤ뤫Τ뤳ȤǤ롣
ޥǤդưɽȤƤȤ뤳ȤǤ롣
̤ϰʲͤȤ뤳ȤǤ:
.TP
FP_NAN
.I x
"Not a Number" Ǥ (ͤǤϤʤ)
.TP
FP_INFINITE
.I x
ޤ̵Ǥ롣
.TP
FP_ZERO
.I x
0 Ǥ롣
.TP
FP_SUBNORMAL
.I x
ɽˤϾ롣
.TP
FP_NORMAL
嵭ΤɤˤƤϤޤʤǤꡢ
ͤ̾ưǤϤ
.LP
¾ΥޥϡĤɸŪ䤤Фơñ롣
.TP
.BI isfinite( x )
(fpclassify(x) != FP_NAN && fpclassify(x) != FP_INFINITE)
ξ 0 ʳ֤ͤ
.TP
.BI isnormal( x )
(fpclassify(x) == FP_NORMAL)
ξ 0 ʳ֤ͤ
.TP
.BI isnan( x )
(fpclassify(x) == FP_NAN)
ξ 0 ʳ֤ͤ
.TP
.BI isinf( x )
(fpclassify(x) == FP_INFINITE)
ξ 0 ʳ֤ͤ
.SH
BSD 4.3 ˽륷ƥǤϡ
.B isinf()
ͤФ 1 ̵֤Ф \-1 ֤
.SH
C99
.SH Ϣ
.BR finite (3),
.BR INFINITY (3),
.BR isgreater (3)
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