text: // (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_PUSH_HPP_INCLUDED
  #define BOOST_IOSTREAMS_DETAIL_PUSH_HPP_INCLUDED 
  
  #if defined(_MSC_VER)
  # pragma once
  #endif                    
   
  #include "Utilogeny/lib/boost/config.hpp" // BOOST_MSVC.
  #include "Utilogeny/lib/boost/detail/workaround.hpp"
  #include "Utilogeny/lib/boost/iostreams/categories.hpp"
  #include "Utilogeny/lib/boost/iostreams/categories.hpp"
  #include "Utilogeny/lib/boost/iostreams/detail/adapter/range_adapter.hpp"
  #include "Utilogeny/lib/boost/iostreams/detail/config/wide_streams.hpp"
  #include "Utilogeny/lib/boost/iostreams/detail/enable_if_stream.hpp"   
  #include "Utilogeny/lib/boost/iostreams/pipeline.hpp"   
  #include "Utilogeny/lib/boost/iostreams/detail/push_params.hpp"   
  #include "Utilogeny/lib/boost/iostreams/detail/resolve.hpp"
  #include "Utilogeny/lib/boost/mpl/bool.hpp"   
  #include "Utilogeny/lib/boost/preprocessor/cat.hpp" 
  #include "Utilogeny/lib/boost/preprocessor/control/iif.hpp"
  #include "Utilogeny/lib/boost/static_assert.hpp"
  #include "Utilogeny/lib/boost/type_traits/is_convertible.hpp"
  
  //
  // Macro: BOOST_IOSTREAMS_DEFINE_PUSH_CONSTRUCTOR(name, mode, ch, helper).
  // Description: Defines overloads with name 'name' which forward to a function
  //      'helper' which takes a filter or devide by const reference.
  //
  #define BOOST_IOSTREAMS_DEFINE_PUSH_CONSTRUCTOR(name, mode, ch, helper) \
      BOOST_IOSTREAMS_DEFINE_PUSH_IMPL(name, mode, ch, helper, 0, ?) \
      /**/
  
  //
  // Macro: BOOST_IOSTREAMS_DEFINE_PUSH(name, mode, ch, helper).
  // Description: Defines constructors which forward to a function
  //      'helper' which takes a filter or device by const reference.
  //
  #define BOOST_IOSTREAMS_DEFINE_PUSH(name, mode, ch, helper) \
      BOOST_IOSTREAMS_DEFINE_PUSH_IMPL(name, mode, ch, helper, 1, void) \
      /**/
  
  //--------------------Definition of BOOST_IOSTREAMS_DEFINE_PUSH_IMPL----------//
            
  #define BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, arg, helper, has_return) \
      this->helper( ::boost::iostreams::detail::resolve<mode, ch>(arg) \
                    BOOST_IOSTREAMS_PUSH_ARGS() ); \
      /**/
  
  #if !BOOST_WORKAROUND(BOOST_BORLANDC, < 0x600) \
      /**/
  # ifndef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES
  #  define BOOST_IOSTREAMS_DEFINE_PUSH_IMPL(name, mode, ch, helper, has_return, result) \
      template<typename CharType, typename TraitsType> \
      BOOST_PP_IIF(has_return, result, explicit) \
      name(::std::basic_streambuf<CharType, TraitsType>& sb BOOST_IOSTREAMS_PUSH_PARAMS()) \
      { BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, sb, helper, has_return); } \
      template<typename CharType, typename TraitsType> \
      BOOST_PP_IIF(has_return, result, explicit) \
      name(::std::basic_istream<CharType, TraitsType>& is BOOST_IOSTREAMS_PUSH_PARAMS()) \
      { BOOST_STATIC_ASSERT((!is_convertible<mode, output>::value)); \
        BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, is, helper, has_return); } \
      template<typename CharType, typename TraitsType> \
      BOOST_PP_IIF(has_return, result, explicit) \
      name(::std::basic_ostream<CharType, TraitsType>& os BOOST_IOSTREAMS_PUSH_PARAMS()) \
      { BOOST_STATIC_ASSERT((!is_convertible<mode, input>::value)); \
        BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, os, helper, has_return); } \
      template<typename CharType, typename TraitsType> \
      BOOST_PP_IIF(has_return, result, explicit) \
      name(::std::basic_iostream<CharType, TraitsType>& io BOOST_IOSTREAMS_PUSH_PARAMS()) \
      { BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, io, helper, has_return); } \
      template<typename Iter> \
      BOOST_PP_IIF(has_return, result, explicit) \
      name(const iterator_range<Iter>& rng BOOST_IOSTREAMS_PUSH_PARAMS()) \
      { BOOST_PP_EXPR_IF(has_return, return) \
      this->helper( ::boost::iostreams::detail::range_adapter< \
                        mode, iterator_range<Iter> \
                    >(rng) \
                    BOOST_IOSTREAMS_PUSH_ARGS() ); } \
      template<typename Pipeline, typename Concept> \
      BOOST_PP_IIF(has_return, result, explicit) \
      name(const ::boost::iostreams::pipeline<Pipeline, Concept>& p) \
      { p.push(*this); } \
      template<typename T> \
      BOOST_PP_IIF(has_return, result, explicit) \
      name(const T& t BOOST_IOSTREAMS_PUSH_PARAMS() BOOST_IOSTREAMS_DISABLE_IF_STREAM(T)) \
      { this->helper( ::boost::iostreams::detail::resolve<mode, ch>(t) \
                      BOOST_IOSTREAMS_PUSH_ARGS() ); } \
      /**/
  # else // # ifndef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES
  #  define BOOST_IOSTREAMS_DEFINE_PUSH_IMPL(name, mode, ch, helper, has_return, result) \
      BOOST_PP_IF(has_return, result, explicit) \
      name(::std::streambuf& sb BOOST_IOSTREAMS_PUSH_PARAMS()) \
      { BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, sb, helper, has_return); } \
      BOOST_PP_IF(has_return, result, explicit) \
      name(::std::istream& is BOOST_IOSTREAMS_PUSH_PARAMS()) \
      { BOOST_STATIC_ASSERT((!is_convertible<mode, output>::value)); \
        BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, is, helper, has_return); } \
      BOOST_PP_IF(has_return, result, explicit) \
      name(::std::ostream& os BOOST_IOSTREAMS_PUSH_PARAMS()) \
      { BOOST_STATIC_ASSERT((!is_convertible<mode, input>::value)); \
        BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, os, helper, has_return); } \
      BOOST_PP_IF(has_return, result, explicit) \
      name(::std::iostream& io BOOST_IOSTREAMS_PUSH_PARAMS()) \
      { BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, io, helper, has_return); } \
      template<typename Iter> \
      BOOST_PP_IF(has_return, result, explicit) \
      name(const iterator_range<Iter>& rng BOOST_IOSTREAMS_PUSH_PARAMS()) \
      { BOOST_PP_EXPR_IF(has_return, return) \
      this->helper( ::boost::iostreams::detail::range_adapter< \
                        mode, iterator_range<Iter> \
                    >(rng) \
                    BOOST_IOSTREAMS_PUSH_ARGS() ); } \
      template<typename Pipeline, typename Concept> \
      BOOST_PP_IF(has_return, result, explicit) \
      name(const ::boost::iostreams::pipeline<Pipeline, Concept>& p) \
      { p.push(*this); } \
      template<typename T> \
      BOOST_PP_EXPR_IF(has_return, result) \
      name(const T& t BOOST_IOSTREAMS_PUSH_PARAMS() BOOST_IOSTREAMS_DISABLE_IF_STREAM(T)) \
      { this->helper( ::boost::iostreams::detail::resolve<mode, ch>(t) \
                      BOOST_IOSTREAMS_PUSH_ARGS() ); } \
      /**/
  # endif // # ifndef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES
  #else // #if VC6, VC7.0, Borland 5.x
  # define BOOST_IOSTREAMS_DEFINE_PUSH_IMPL(name, mode, ch, helper, has_return, result) \
      template<typename T> \
      void BOOST_PP_CAT(name, _msvc_impl) \
      ( ::boost::mpl::true_, const T& t BOOST_IOSTREAMS_PUSH_PARAMS() ) \
      { t.push(*this); } \
      template<typename T> \
      void BOOST_PP_CAT(name, _msvc_impl) \
      ( ::boost::mpl::false_, const T& t BOOST_IOSTREAMS_PUSH_PARAMS() ) \
      { this->helper( ::boost::iostreams::detail::resolve<mode, ch>(t) \
                      BOOST_IOSTREAMS_PUSH_ARGS() ); } \
      template<typename T> \
      BOOST_PP_IF(has_return, result, explicit) \
      name(const T& t BOOST_IOSTREAMS_PUSH_PARAMS()) \
      { \
          this->BOOST_PP_CAT(name, _msvc_impl) \
                ( ::boost::iostreams::detail::is_pipeline<T>(), \
                  t BOOST_IOSTREAMS_PUSH_ARGS() ); \
      } \
      /**/
  #endif // #if VC6, VC7.0, Borland 5.x
  
  #endif // #ifndef BOOST_IOSTREAMS_DETAIL_PUSH_HPP_INCLUDED
  