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3rdparty/boost_1_81_0/boost/iostreams/detail/ios.hpp 2.01 KB
63e88f80   Hu Chunming   提交三方库
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  // (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
  // (C) Copyright 2003-2007 Jonathan Turkanis
  // Distributed under the Boost Software License, Version 1.0. (See accompanying
  // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
  
  // See http://www.boost.org/libs/iostreams for documentation.
  
  #ifndef BOOST_IOSTREAMS_DETAIL_IOS_HPP_INCLUDED
  #define BOOST_IOSTREAMS_DETAIL_IOS_HPP_INCLUDED
  
  #if defined(_MSC_VER)
  # pragma once
  #endif              
                   
  #include <boost/config.hpp> // BOOST_MSVC.
  #include <boost/detail/workaround.hpp>
  #include <boost/iostreams/detail/config/wide_streams.hpp>
  #ifndef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES
  # if !BOOST_WORKAROUND(__MWERKS__, <= 0x3003)
  #  include <ios>
  # else
  #  include <istream>
  #  include <ostream>
  # endif
  #else 
  # include <exception>
  # include <iosfwd>
  #endif 
  
  namespace boost { namespace iostreams { namespace detail {
  
  #ifndef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES //--------------------------------//
  # define BOOST_IOSTREAMS_BASIC_IOS(ch, tr)  std::basic_ios< ch, tr >
  # if !BOOST_WORKAROUND(__MWERKS__, <= 0x3003) && \
       !BOOST_WORKAROUND(BOOST_BORLANDC, < 0x600) \
       /**/
  
  #define BOOST_IOS                std::ios
  #define BOOST_IOSTREAMS_FAILURE  std::ios::failure
  
  # else
  
  #define BOOST_IOS                std::ios_base
  #define BOOST_IOSTREAMS_FAILURE  std::ios_base::failure
  
  # endif
  #else // #ifndef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES //-----------------------//
  
  #define BOOST_IOS                          std::ios
  #define BOOST_IOSTREAMS_BASIC_IOS(ch, tr)  std::ios
  #define BOOST_IOSTREAMS_FAILURE            boost::iostreams::detail::failure
  
  class failure : std::exception {    
  public:
      explicit failure(const std::string& what_arg) : what_(what_arg) { }
      const char* what() const { return what_.c_str(); }
  private:
      std::string what_;
  };
  
  #endif // #ifndef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES //----------------------//
  
  } } } // End namespace failure, iostreams, boost.
  
  #endif // #ifndef BOOST_IOSTREAMS_DETAIL_IOS_HPP_INCLUDED