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Diffstat (limited to 'src/third_party/boost-1.69.0/boost/iostreams/detail/resolve.hpp')
-rw-r--r-- | src/third_party/boost-1.69.0/boost/iostreams/detail/resolve.hpp | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/src/third_party/boost-1.69.0/boost/iostreams/detail/resolve.hpp b/src/third_party/boost-1.69.0/boost/iostreams/detail/resolve.hpp new file mode 100644 index 00000000000..2d480950e11 --- /dev/null +++ b/src/third_party/boost-1.69.0/boost/iostreams/detail/resolve.hpp @@ -0,0 +1,230 @@ +// (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_RESOLVE_HPP_INCLUDED +#define BOOST_IOSTREAMS_DETAIL_RESOLVE_HPP_INCLUDED + +#if defined(_MSC_VER) +# pragma once +#endif + +#include <boost/config.hpp> // partial spec, put size_t in std. +#include <cstddef> // std::size_t. +#include <boost/detail/is_incrementable.hpp> +#include <boost/detail/workaround.hpp> +#include <boost/iostreams/detail/adapter/mode_adapter.hpp> +#include <boost/iostreams/detail/adapter/output_iterator_adapter.hpp> +#include <boost/iostreams/detail/adapter/range_adapter.hpp> +#include <boost/iostreams/detail/config/gcc.hpp> +#include <boost/iostreams/detail/config/overload_resolution.hpp> +#include <boost/iostreams/detail/config/wide_streams.hpp> +#include <boost/iostreams/detail/enable_if_stream.hpp> +#include <boost/iostreams/detail/is_dereferenceable.hpp> +#include <boost/iostreams/detail/is_iterator_range.hpp> +#include <boost/iostreams/detail/select.hpp> +#include <boost/iostreams/detail/wrap_unwrap.hpp> +#include <boost/iostreams/device/array.hpp> +#include <boost/iostreams/traits.hpp> +#include <boost/mpl/and.hpp> +#include <boost/mpl/bool.hpp> // true_. +#include <boost/mpl/if.hpp> +#include <boost/range/iterator_range.hpp> +#include <boost/type_traits/is_array.hpp> + +// Must come last. +#include <boost/iostreams/detail/config/disable_warnings.hpp> // VC7.1 C4224. + +namespace boost { namespace iostreams { namespace detail { + +//------------------Definition of resolve-------------------------------------// + +#ifndef BOOST_IOSTREAMS_BROKEN_OVERLOAD_RESOLUTION //-------------------------// + +template<typename Mode, typename Ch, typename T> +struct resolve_traits { + typedef typename + mpl::if_< + boost::detail::is_incrementable<T>, + output_iterator_adapter<Mode, Ch, T>, + const T& + >::type type; +}; + +# ifndef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES //-------------------------------// + +template<typename Mode, typename Ch, typename T> +typename resolve_traits<Mode, Ch, T>::type +resolve( const T& t + BOOST_IOSTREAMS_DISABLE_IF_STREAM(T) + + // I suspect that the compilers which require this workaround may + // be correct, but I'm not sure why :( + #if BOOST_WORKAROUND(BOOST_INTEL_CXX_VERSION, BOOST_TESTED_AT(810)) ||\ + BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3205)) || \ + BOOST_WORKAROUND(BOOST_IOSTREAMS_GCC, BOOST_TESTED_AT(400)) ||\ + BOOST_WORKAROUND(__IBMCPP__, BOOST_TESTED_AT(1110)) + /**/ + , typename disable_if< is_iterator_range<T> >::type* = 0 + #endif + ) +{ + typedef typename resolve_traits<Mode, Ch, T>::type return_type; + return return_type(t); +} + +template<typename Mode, typename Ch, typename Tr> +mode_adapter< Mode, std::basic_streambuf<Ch, Tr> > +resolve(std::basic_streambuf<Ch, Tr>& sb) +{ return mode_adapter< Mode, std::basic_streambuf<Ch, Tr> >(wrap(sb)); } + +template<typename Mode, typename Ch, typename Tr> +mode_adapter< Mode, std::basic_istream<Ch, Tr> > +resolve(std::basic_istream<Ch, Tr>& is) +{ return mode_adapter< Mode, std::basic_istream<Ch, Tr> >(wrap(is)); } + +template<typename Mode, typename Ch, typename Tr> +mode_adapter< Mode, std::basic_ostream<Ch, Tr> > +resolve(std::basic_ostream<Ch, Tr>& os) +{ return mode_adapter< Mode, std::basic_ostream<Ch, Tr> >(wrap(os)); } + +template<typename Mode, typename Ch, typename Tr> +mode_adapter< Mode, std::basic_iostream<Ch, Tr> > +resolve(std::basic_iostream<Ch, Tr>& io) +{ return mode_adapter< Mode, std::basic_iostream<Ch, Tr> >(wrap(io)); } + +template<typename Mode, typename Ch, std::size_t N> +array_adapter<Mode, Ch> resolve(Ch (&array)[N]) +{ return array_adapter<Mode, Ch>(array); } + +template<typename Mode, typename Ch, typename Iter> +range_adapter< Mode, boost::iterator_range<Iter> > +resolve(const boost::iterator_range<Iter>& rng) +{ return range_adapter< Mode, boost::iterator_range<Iter> >(rng); } + +# else // # ifndef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES //---------------------// + +template<typename Mode, typename Ch, typename T> +typename resolve_traits<Mode, Ch, T>::type +resolve( const T& t + BOOST_IOSTREAMS_DISABLE_IF_STREAM(T) + #if defined(__GNUC__) + , typename disable_if< is_iterator_range<T> >::type* = 0 + #endif + ) +{ + typedef typename resolve_traits<Mode, Ch, T>::type return_type; + return return_type(t); +} + +template<typename Mode, typename Ch> +mode_adapter<Mode, std::streambuf> +resolve(std::streambuf& sb) +{ return mode_adapter<Mode, std::streambuf>(wrap(sb)); } + +template<typename Mode, typename Ch> +mode_adapter<Mode, std::istream> +resolve(std::istream& is) +{ return mode_adapter<Mode, std::istream>(wrap(is)); } + +template<typename Mode, typename Ch> +mode_adapter<Mode, std::ostream> +resolve(std::ostream& os) +{ return mode_adapter<Mode, std::ostream>(wrap(os)); } + +template<typename Mode, typename Ch> +mode_adapter<Mode, std::iostream> +resolve(std::iostream& io) +{ return mode_adapter<Mode, std::iostream>(wrap(io)); } + +template<typename Mode, typename Ch, std::size_t N> +array_adapter<Mode, Ch> resolve(Ch (&array)[N]) +{ return array_adapter<Mode, Ch>(array); } + +template<typename Mode, typename Ch, typename Iter> +range_adapter< Mode, boost::iterator_range<Iter> > +resolve(const boost::iterator_range<Iter>& rng) +{ return range_adapter< Mode, boost::iterator_range<Iter> >(rng); } + +# endif // # ifndef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES //--------------------// +#else // #ifndef BOOST_IOSTREAMS_BROKEN_OVERLOAD_RESOLUTION //----------------// + +template<typename Mode, typename Ch, typename T> +struct resolve_traits { + // Note: test for is_iterator_range must come before test for output + // iterator. + typedef typename + iostreams::select< // Disambiguation for Tru64. + is_std_io<T>, + mode_adapter<Mode, T>, + is_iterator_range<T>, + range_adapter<Mode, T>, + is_dereferenceable<T>, + output_iterator_adapter<Mode, Ch, T>, + is_array<T>, + array_adapter<Mode, T>, + else_, + #if !BOOST_WORKAROUND(__BORLANDC__, < 0x600) + const T& + #else + T + #endif + >::type type; +}; + +template<typename Mode, typename Ch, typename T> +typename resolve_traits<Mode, Ch, T>::type +resolve(const T& t, mpl::true_) +{ // Bad overload resolution. + typedef typename resolve_traits<Mode, Ch, T>::type return_type; + return return_type(wrap(const_cast<T&>(t))); +} + +template<typename Mode, typename Ch, typename T> +typename resolve_traits<Mode, Ch, T>::type +resolve(const T& t, mpl::false_) +{ + typedef typename resolve_traits<Mode, Ch, T>::type return_type; + return return_type(t); +} + +template<typename Mode, typename Ch, typename T> +typename resolve_traits<Mode, Ch, T>::type +resolve(const T& t BOOST_IOSTREAMS_DISABLE_IF_STREAM(T)) +{ return resolve<Mode, Ch>(t, is_std_io<T>()); } + +# if !BOOST_WORKAROUND(__BORLANDC__, < 0x600) && \ + !defined(__GNUC__) // ---------------------------------------------------// + +template<typename Mode, typename Ch, typename T> +typename resolve_traits<Mode, Ch, T>::type +resolve(T& t, mpl::true_) +{ + typedef typename resolve_traits<Mode, Ch, T>::type return_type; + return return_type(wrap(t)); +} + +template<typename Mode, typename Ch, typename T> +typename resolve_traits<Mode, Ch, T>::type +resolve(T& t, mpl::false_) +{ + typedef typename resolve_traits<Mode, Ch, T>::type return_type; + return return_type(t); +} + +template<typename Mode, typename Ch, typename T> +typename resolve_traits<Mode, Ch, T>::type +resolve(T& t BOOST_IOSTREAMS_ENABLE_IF_STREAM(T)) +{ return resolve<Mode, Ch>(t, is_std_io<T>()); } + +# endif // Borland 5.x or GCC //--------------------------------// +#endif // #ifndef BOOST_IOSTREAMS_BROKEN_OVERLOAD_RESOLUTION //---------------// + +} } } // End namespaces detail, iostreams, boost. + +#include <boost/iostreams/detail/config/enable_warnings.hpp> // VC7.1 4224. + +#endif // BOOST_IOSTREAMS_DETAIL_RESOLVE_HPP_INCLUDED |