1// <cfenv> -*- C++ -*-
2
3// Copyright (C) 2007-2022 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
58namespace 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
85