Chris@16: // (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
Chris@16: // (C) Copyright 2003-2007 Jonathan Turkanis
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16: // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
Chris@16: 
Chris@16: // See http://www.boost.org/libs/iostreams for documentation.
Chris@16: 
Chris@16: #ifndef BOOST_IOSTREAMS_DETAIL_PUSH_HPP_INCLUDED
Chris@16: #define BOOST_IOSTREAMS_DETAIL_PUSH_HPP_INCLUDED 
Chris@16: 
Chris@16: #if defined(_MSC_VER) && (_MSC_VER >= 1020)
Chris@16: # pragma once
Chris@16: #endif                    
Chris@16:  
Chris@16: #include <boost/config.hpp> // BOOST_MSVC.
Chris@16: #include <boost/detail/workaround.hpp>
Chris@16: #include <boost/iostreams/categories.hpp>
Chris@16: #include <boost/iostreams/categories.hpp>
Chris@16: #include <boost/iostreams/detail/adapter/range_adapter.hpp>
Chris@16: #include <boost/iostreams/detail/config/wide_streams.hpp>
Chris@16: #include <boost/iostreams/detail/enable_if_stream.hpp>   
Chris@16: #include <boost/iostreams/pipeline.hpp>   
Chris@16: #include <boost/iostreams/detail/push_params.hpp>   
Chris@16: #include <boost/iostreams/detail/resolve.hpp>
Chris@16: #include <boost/mpl/bool.hpp>   
Chris@16: #include <boost/preprocessor/cat.hpp> 
Chris@16: #include <boost/preprocessor/control/iif.hpp>
Chris@16: #include <boost/static_assert.hpp>
Chris@16: #include <boost/type_traits/is_convertible.hpp>
Chris@16: 
Chris@16: //
Chris@16: // Macro: BOOST_IOSTREAMS_DEFINE_PUSH_CONSTRUCTOR(name, mode, ch, helper).
Chris@16: // Description: Defines overloads with name 'name' which forward to a function
Chris@16: //      'helper' which takes a filter or devide by const reference.
Chris@16: //
Chris@16: #define BOOST_IOSTREAMS_DEFINE_PUSH_CONSTRUCTOR(name, mode, ch, helper) \
Chris@16:     BOOST_IOSTREAMS_DEFINE_PUSH_IMPL(name, mode, ch, helper, 0, ?) \
Chris@16:     /**/
Chris@16: 
Chris@16: //
Chris@16: // Macro: BOOST_IOSTREAMS_DEFINE_PUSH(name, mode, ch, helper).
Chris@16: // Description: Defines constructors which forward to a function
Chris@16: //      'helper' which takes a filter or device by const reference.
Chris@16: //
Chris@16: #define BOOST_IOSTREAMS_DEFINE_PUSH(name, mode, ch, helper) \
Chris@16:     BOOST_IOSTREAMS_DEFINE_PUSH_IMPL(name, mode, ch, helper, 1, void) \
Chris@16:     /**/
Chris@16: 
Chris@16: //--------------------Definition of BOOST_IOSTREAMS_DEFINE_PUSH_IMPL----------//
Chris@16:           
Chris@16: #define BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, arg, helper, has_return) \
Chris@16:     this->helper( ::boost::iostreams::detail::resolve<mode, ch>(arg) \
Chris@16:                   BOOST_IOSTREAMS_PUSH_ARGS() ); \
Chris@16:     /**/
Chris@16: 
Chris@16: #if !BOOST_WORKAROUND(BOOST_MSVC, <= 1300) && \
Chris@16:     !BOOST_WORKAROUND(__BORLANDC__, < 0x600) \
Chris@16:     /**/
Chris@16: # ifndef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES
Chris@16: #  define BOOST_IOSTREAMS_DEFINE_PUSH_IMPL(name, mode, ch, helper, has_return, result) \
Chris@16:     template<typename CharType, typename TraitsType> \
Chris@16:     BOOST_PP_IIF(has_return, result, explicit) \
Chris@16:     name(::std::basic_streambuf<CharType, TraitsType>& sb BOOST_IOSTREAMS_PUSH_PARAMS()) \
Chris@16:     { BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, sb, helper, has_return); } \
Chris@16:     template<typename CharType, typename TraitsType> \
Chris@16:     BOOST_PP_IIF(has_return, result, explicit) \
Chris@16:     name(::std::basic_istream<CharType, TraitsType>& is BOOST_IOSTREAMS_PUSH_PARAMS()) \
Chris@16:     { BOOST_STATIC_ASSERT((!is_convertible<mode, output>::value)); \
Chris@16:       BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, is, helper, has_return); } \
Chris@16:     template<typename CharType, typename TraitsType> \
Chris@16:     BOOST_PP_IIF(has_return, result, explicit) \
Chris@16:     name(::std::basic_ostream<CharType, TraitsType>& os BOOST_IOSTREAMS_PUSH_PARAMS()) \
Chris@16:     { BOOST_STATIC_ASSERT((!is_convertible<mode, input>::value)); \
Chris@16:       BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, os, helper, has_return); } \
Chris@16:     template<typename CharType, typename TraitsType> \
Chris@16:     BOOST_PP_IIF(has_return, result, explicit) \
Chris@16:     name(::std::basic_iostream<CharType, TraitsType>& io BOOST_IOSTREAMS_PUSH_PARAMS()) \
Chris@16:     { BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, io, helper, has_return); } \
Chris@16:     template<typename Iter> \
Chris@16:     BOOST_PP_IIF(has_return, result, explicit) \
Chris@16:     name(const iterator_range<Iter>& rng BOOST_IOSTREAMS_PUSH_PARAMS()) \
Chris@16:     { BOOST_PP_EXPR_IF(has_return, return) \
Chris@16:     this->helper( ::boost::iostreams::detail::range_adapter< \
Chris@16:                       mode, iterator_range<Iter> \
Chris@16:                   >(rng) \
Chris@16:                   BOOST_IOSTREAMS_PUSH_ARGS() ); } \
Chris@16:     template<typename Pipeline, typename Concept> \
Chris@16:     BOOST_PP_IIF(has_return, result, explicit) \
Chris@16:     name(const ::boost::iostreams::pipeline<Pipeline, Concept>& p) \
Chris@16:     { p.push(*this); } \
Chris@16:     template<typename T> \
Chris@16:     BOOST_PP_IIF(has_return, result, explicit) \
Chris@16:     name(const T& t BOOST_IOSTREAMS_PUSH_PARAMS() BOOST_IOSTREAMS_DISABLE_IF_STREAM(T)) \
Chris@16:     { this->helper( ::boost::iostreams::detail::resolve<mode, ch>(t) \
Chris@16:                     BOOST_IOSTREAMS_PUSH_ARGS() ); } \
Chris@16:     /**/
Chris@16: # else // # ifndef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES
Chris@16: #  define BOOST_IOSTREAMS_DEFINE_PUSH_IMPL(name, mode, ch, helper, has_return, result) \
Chris@16:     BOOST_PP_IF(has_return, result, explicit) \
Chris@16:     name(::std::streambuf& sb BOOST_IOSTREAMS_PUSH_PARAMS()) \
Chris@16:     { BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, sb, helper, has_return); } \
Chris@16:     BOOST_PP_IF(has_return, result, explicit) \
Chris@16:     name(::std::istream& is BOOST_IOSTREAMS_PUSH_PARAMS()) \
Chris@16:     { BOOST_STATIC_ASSERT((!is_convertible<mode, output>::value)); \
Chris@16:       BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, is, helper, has_return); } \
Chris@16:     BOOST_PP_IF(has_return, result, explicit) \
Chris@16:     name(::std::ostream& os BOOST_IOSTREAMS_PUSH_PARAMS()) \
Chris@16:     { BOOST_STATIC_ASSERT((!is_convertible<mode, input>::value)); \
Chris@16:       BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, os, helper, has_return); } \
Chris@16:     BOOST_PP_IF(has_return, result, explicit) \
Chris@16:     name(::std::iostream& io BOOST_IOSTREAMS_PUSH_PARAMS()) \
Chris@16:     { BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, io, helper, has_return); } \
Chris@16:     template<typename Iter> \
Chris@16:     BOOST_PP_IF(has_return, result, explicit) \
Chris@16:     name(const iterator_range<Iter>& rng BOOST_IOSTREAMS_PUSH_PARAMS()) \
Chris@16:     { BOOST_PP_EXPR_IF(has_return, return) \
Chris@16:     this->helper( ::boost::iostreams::detail::range_adapter< \
Chris@16:                       mode, iterator_range<Iter> \
Chris@16:                   >(rng) \
Chris@16:                   BOOST_IOSTREAMS_PUSH_ARGS() ); } \
Chris@16:     template<typename Pipeline, typename Concept> \
Chris@16:     BOOST_PP_IF(has_return, result, explicit) \
Chris@16:     name(const ::boost::iostreams::pipeline<Pipeline, Concept>& p) \
Chris@16:     { p.push(*this); } \
Chris@16:     template<typename T> \
Chris@16:     BOOST_PP_EXPR_IF(has_return, result) \
Chris@16:     name(const T& t BOOST_IOSTREAMS_PUSH_PARAMS() BOOST_IOSTREAMS_DISABLE_IF_STREAM(T)) \
Chris@16:     { this->helper( ::boost::iostreams::detail::resolve<mode, ch>(t) \
Chris@16:                     BOOST_IOSTREAMS_PUSH_ARGS() ); } \
Chris@16:     /**/
Chris@16: # endif // # ifndef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES
Chris@16: #else // #if VC6, VC7.0, Borland 5.x
Chris@16: # define BOOST_IOSTREAMS_DEFINE_PUSH_IMPL(name, mode, ch, helper, has_return, result) \
Chris@16:     template<typename T> \
Chris@16:     void BOOST_PP_CAT(name, _msvc_impl) \
Chris@16:     ( ::boost::mpl::true_, const T& t BOOST_IOSTREAMS_PUSH_PARAMS() ) \
Chris@16:     { t.push(*this); } \
Chris@16:     template<typename T> \
Chris@16:     void BOOST_PP_CAT(name, _msvc_impl) \
Chris@16:     ( ::boost::mpl::false_, const T& t BOOST_IOSTREAMS_PUSH_PARAMS() ) \
Chris@16:     { this->helper( ::boost::iostreams::detail::resolve<mode, ch>(t) \
Chris@16:                     BOOST_IOSTREAMS_PUSH_ARGS() ); } \
Chris@16:     template<typename T> \
Chris@16:     BOOST_PP_IF(has_return, result, explicit) \
Chris@16:     name(const T& t BOOST_IOSTREAMS_PUSH_PARAMS()) \
Chris@16:     { \
Chris@16:         this->BOOST_PP_CAT(name, _msvc_impl) \
Chris@16:               ( ::boost::iostreams::detail::is_pipeline<T>(), \
Chris@16:                 t BOOST_IOSTREAMS_PUSH_ARGS() ); \
Chris@16:     } \
Chris@16:     /**/
Chris@16: #endif // #if VC6, VC7.0, Borland 5.x
Chris@16: 
Chris@16: #endif // #ifndef BOOST_IOSTREAMS_DETAIL_PUSH_HPP_INCLUDED