libstdc++-v3/include/c_global/cfenv

   1 // <cfenv> -*- C++ -*-
   2
   3 // Copyright (C) 2007, 2008, 2009 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 #ifndef __GXX_EXPERIMENTAL_CXX0X__
  35 # include <c++0x_warning.h>
  36 #endif
  37
  38 #if defined(_GLIBCXX_INCLUDE_AS_TR1)
  39 #  error C++0x header cannot be included from TR1 header
  40 #endif
  41
  42 #include <bits/c++config.h>
  43 #if _GLIBCXX_HAVE_FENV_H
  44 # include <fenv.h>
  45 #endif
  46
  47 #if defined(_GLIBCXX_INCLUDE_AS_CXX0X)
  48 #  include <tr1_impl/cfenv>
  49 #else
  50 #  define _GLIBCXX_INCLUDE_AS_CXX0X
  51 #  define _GLIBCXX_BEGIN_NAMESPACE_TR1
  52 #  define _GLIBCXX_END_NAMESPACE_TR1
  53 #  define _GLIBCXX_TR1
  54 #  include <tr1_impl/cfenv>
  55 #  undef _GLIBCXX_TR1
  56 #  undef _GLIBCXX_END_NAMESPACE_TR1
  57 #  undef _GLIBCXX_BEGIN_NAMESPACE_TR1
  58 #  undef _GLIBCXX_INCLUDE_AS_CXX0X
  59 #endif
  60
  61 #endif // _GLIBCXX_CFENV