libstdc++

cfenv
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1 // <cfenv> -*- C++ -*-
2
3 // Copyright (C) 2007-2013 Free Software Foundation, Inc.
4 //
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
9 // any later version.
10
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
15
16 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
19
20 // You should have received a copy of the GNU General Public License and
21 // a copy of the GCC Runtime Library Exception along with this program;
22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 // <http://www.gnu.org/licenses/>.
24
25 /** @file include/cfenv
26 * This is a Standard C++ Library header.
27 */
28
29 #ifndef _GLIBCXX_CFENV
30 #define _GLIBCXX_CFENV 1
31
32 #pragma GCC system_header
33
34 #if __cplusplus < 201103L
35 # include <bits/c++0x_warning.h>
36 #else
37
38 #include <bits/c++config.h>
39
40 #if _GLIBCXX_HAVE_FENV_H
41 # include <fenv.h>
42 #endif
43
44 #ifdef _GLIBCXX_USE_C99_FENV_TR1
45
46 #undef feclearexcept
47 #undef fegetexceptflag
48 #undef feraiseexcept
49 #undef fesetexceptflag
50 #undef fetestexcept
51 #undef fegetround
52 #undef fesetround
53 #undef fegetenv
54 #undef feholdexcept
55 #undef fesetenv
56 #undef feupdateenv
57
58 namespace std
59 {
60 // types
61 using ::fenv_t;
62 using ::fexcept_t;
63
64 // functions
65 using ::feclearexcept;
66 using ::fegetexceptflag;
67 using ::feraiseexcept;
68 using ::fesetexceptflag;
69 using ::fetestexcept;
70
71 using ::fegetround;
72 using ::fesetround;
73
74 using ::fegetenv;
75 using ::feholdexcept;
76 using ::fesetenv;
77 using ::feupdateenv;
78 } // namespace std
79
80 #endif // _GLIBCXX_USE_C99_FENV_TR1
81
82 #endif // C++11
83
84 #endif // _GLIBCXX_CFENV