mingw/lib/gcc/mingw32/4.3.3/include/c++/fenv.h

   1 // -*- C++ -*- compatibility header.
   2
   3 // Copyright (C) 2007, 2008 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 2, 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 // You should have received a copy of the GNU General Public License
  17 // along with this library; see the file COPYING.  If not, write to
  18 // the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  19 // Boston, MA 02110-1301, USA.
  20
  21 // As a special exception, you may use this file as part of a free software
  22 // library without restriction.  Specifically, if other files instantiate
  23 // templates or use macros or inline functions from this file, or you compile
  24 // this file and link it with other files to produce an executable, this
  25 // file does not by itself cause the resulting executable to be covered by
  26 // the GNU General Public License.  This exception does not however
  27 // invalidate any other reasons why the executable file might be covered by
  28 // the GNU General Public License.
  29
  30 /** @file fenv.h
  31  *  This is a Standard C++ Library header.
  32  */
  33
  34 #ifndef _GLIBCXX_FENV_H
  35 #define _GLIBCXX_FENV_H 1
  36
  37 #pragma GCC system_header
  38
  39 #include <bits/c++config.h>
  40 #if _GLIBCXX_HAVE_FENV_H
  41 # include_next <fenv.h>
  42 #endif
  43
  44 #ifdef __GXX_EXPERIMENTAL_CXX0X__
  45 #  if defined(_GLIBCXX_INCLUDE_AS_TR1)
  46 #    error C++0x header cannot be included from TR1 header
  47 #  endif
  48 #  if defined(_GLIBCXX_INCLUDE_AS_CXX0X)
  49 #    include <tr1_impl/cfenv>
  50 #  else
  51 #    define _GLIBCXX_INCLUDE_AS_CXX0X
  52 #    define _GLIBCXX_BEGIN_NAMESPACE_TR1
  53 #    define _GLIBCXX_END_NAMESPACE_TR1
  54 #    define _GLIBCXX_TR1
  55 #    include <tr1_impl/cfenv>
  56 #    undef _GLIBCXX_TR1
  57 #    undef _GLIBCXX_END_NAMESPACE_TR1
  58 #    undef _GLIBCXX_BEGIN_NAMESPACE_TR1
  59 #    undef _GLIBCXX_INCLUDE_AS_CXX0X
  60 #  endif
  61 #endif
  62
  63 #endif // _GLIBCXX_FENV_H