1 .\" Copyright (c) 2000 Andries Brouwer (aeb@cwi.nl)
3 .\" This is free documentation; you can redistribute it and/or
4 .\" modify it under the terms of the GNU General Public License as
5 .\" published by the Free Software Foundation; either version 2 of
6 .\" the License, or (at your option) any later version.
8 .\" The GNU General Public License's references to "object code"
9 .\" and "executables" are to be interpreted as the output of any
10 .\" document formatting or typesetting system, including
11 .\" intermediate and printed output.
13 .\" This manual is distributed in the hope that it will be useful,
14 .\" but WITHOUT ANY WARRANTY; without even the implied warranty of
15 .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 .\" GNU General Public License for more details.
18 .\" You should have received a copy of the GNU General Public
19 .\" License along with this manual; if not, write to the Free
20 .\" Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111,
23 .\" 2000-08-14 added GNU additions from Andreas Jaeger
24 .\" 2000-12-05 some changes inspired by acahalan's remarks
26 .\" Japanese Version Copyright (c) 2000-2001 NAKANO Takeo
27 .\" and Copyright (c) 2008 Akihiro MOTOKI.
28 .\" Translated 2001-02-08, NAKANO Takeo <nakano@apm.seikei.ac.jp>
29 .\" Updated 2003-10-15, Kentaro Shirakata <argrath@ub32.org>
30 .\" Updated 2005-02-26, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
31 .\" Updated 2008-09-16, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
33 .\"WORD: (floating-point) exception (ÉâÆ°¾®¿ôÅÀ) Îã³°
34 .\"WORD: rounding ´Ý¤á
35 .\"WORD: opaque ÆâÉô¤Î
37 .TH FENV 3 2010-10-31 "Linux" "Linux Programmer's Manual"
39 feclearexcept, fegetexceptflag, feraiseexcept, fesetexceptflag,
40 fetestexcept, fegetenv, fegetround, feholdexcept, fesetround,
41 fesetenv, feupdateenv, feenableexcept, fedisableexcept,
42 fegetexcept \- ÉâÆ°¾®¿ôÅÀ¤Î´Ý¤á¤ÈÎã³°¤Î¼è¤ê°·¤¤
47 .BI "int feclearexcept(int " excepts );
49 .BI "int fegetexceptflag(fexcept_t *" flagp ", int " excepts );
51 .BI "int feraiseexcept(int " excepts );
53 .BI "int fesetexceptflag(const fexcept_t *" flagp ", int " excepts );
55 .BI "int fetestexcept(int " excepts );
57 .B "int fegetround(void);"
59 .BI "int fesetround(int " rounding_mode );
61 .BI "int fegetenv(fenv_t *" envp );
63 .BI "int feholdexcept(fenv_t *" envp );
65 .BI "int fesetenv(const fenv_t *" envp );
67 .BI "int feupdateenv(const fenv_t *" envp );
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120 .BR FE_OVERFLOW | FE_UNDERFLOW
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157 .BR fegetexceptflag ()
159 .BR fesetexceptflag ()
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272 .\" ¤³¤ì¤Ï C99 ɸ½à¤Î Corrigendum 1 (ISO/IEC 9899:1999/Cor.1:2001(E))
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277 IEC 60559 (IEC 559:1989), ANSI/IEEE 854, C99, POSIX.1-2001.
280 ²Äǽ¤Ê¾ì¹ç¤Ë¤Ï¡¢GNU C Library ¤Ï¥Þ¥¯¥í
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290 .BR feenableexcept ()
292 .BR fedisableexcept ()
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300 .BR "#define _GNU_SOURCE" " /* feature_test_macros(7) »²¾È */"
301 .B "#define _GNU_SOURCE"
303 .B "#include <fenv.h>"
305 .BI "int feenableexcept(int " excepts );
307 .BI "int fedisableexcept(int " excepts );
309 .B "int fegetexcept(void);"
313 .BR feenableexcept ()
315 .BR fedisableexcept ()
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330 .\" Aug 08, glibc 2.8
331 ¤³¤Î¤è¤¦¤Ë¤Ê¤Ã¤Æ¤ª¤é¤º¡¢
334 .\" See http://gcc.gnu.org/ml/gcc/2002-02/msg01535.html