libstdc++
tr1/cfenv
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1 // TR1 cfenv -*- C++ -*-
2 
3 // Copyright (C) 2006-2017 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 tr1/cfenv
26  * This is a TR1 C++ Library header.
27  */
28 
29 #ifndef _GLIBCXX_TR1_CFENV
30 #define _GLIBCXX_TR1_CFENV 1
31 
32 #pragma GCC system_header
33 
34 #include <bits/c++config.h>
35 
36 #if _GLIBCXX_HAVE_FENV_H
37 # include <fenv.h>
38 #endif
39 
40 #ifdef _GLIBCXX_USE_C99_FENV_TR1
41 
42 #undef feclearexcept
43 #undef fegetexceptflag
44 #undef feraiseexcept
45 #undef fesetexceptflag
46 #undef fetestexcept
47 #undef fegetround
48 #undef fesetround
49 #undef fegetenv
50 #undef feholdexcept
51 #undef fesetenv
52 #undef feupdateenv
53 
54 namespace std _GLIBCXX_VISIBILITY(default)
55 {
56 namespace tr1
57 {
58  // types
59  using ::fenv_t;
60  using ::fexcept_t;
61 
62  // functions
63  using ::feclearexcept;
64  using ::fegetexceptflag;
65  using ::feraiseexcept;
66  using ::fesetexceptflag;
67  using ::fetestexcept;
68 
69  using ::fegetround;
70  using ::fesetround;
71 
72  using ::fegetenv;
73  using ::feholdexcept;
74  using ::fesetenv;
75  using ::feupdateenv;
76 }
77 }
78 
79 #endif // _GLIBCXX_USE_C99_FENV_TR1
80 
81 #endif // _GLIBCXX_TR1_CFENV
ISO C++ entities toplevel namespace is std.