// (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_INPUT_SEQUENCE_HPP_INCLUDED | |
#define BOOST_IOSTREAMS_INPUT_SEQUENCE_HPP_INCLUDED | |
#if defined(_MSC_VER) && (_MSC_VER >= 1020) | |
# pragma once | |
#endif | |
#include <utility> // pair. | |
#include <boost/config.hpp> // DEDUCED_TYPENAME, MSVC. | |
#include <boost/detail/workaround.hpp> | |
#include <boost/iostreams/detail/wrap_unwrap.hpp> | |
#include <boost/iostreams/operations_fwd.hpp> // is_custom | |
#include <boost/iostreams/traits.hpp> | |
#include <boost/mpl/if.hpp> | |
// Must come last. | |
#include <boost/iostreams/detail/config/disable_warnings.hpp> | |
namespace boost { namespace iostreams { | |
namespace detail { | |
template<typename T> | |
struct input_sequence_impl; | |
} // End namespace detail. | |
template<typename T> | |
inline std::pair< | |
BOOST_DEDUCED_TYPENAME char_type_of<T>::type*, | |
BOOST_DEDUCED_TYPENAME char_type_of<T>::type* | |
> | |
input_sequence(T& t) | |
{ return detail::input_sequence_impl<T>::input_sequence(t); } | |
namespace detail { | |
//------------------Definition of direct_impl-------------------------------// | |
template<typename T> | |
struct input_sequence_impl | |
: mpl::if_< | |
detail::is_custom<T>, | |
operations<T>, | |
input_sequence_impl<direct_tag> | |
>::type | |
{ }; | |
template<> | |
struct input_sequence_impl<direct_tag> { | |
template<typename U> | |
static std::pair< | |
BOOST_DEDUCED_TYPENAME char_type_of<U>::type*, | |
BOOST_DEDUCED_TYPENAME char_type_of<U>::type* | |
> | |
input_sequence(U& u) { return u.input_sequence(); } | |
}; | |
} // End namespace detail. | |
} } // End namespaces iostreams, boost. | |
#include <boost/iostreams/detail/config/enable_warnings.hpp> | |
#endif // #ifndef BOOST_IOSTREAMS_INPUT_SEQUENCE_HPP_INCLUDED |