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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_TRANSLATE_INT_TYPE_HPP_INCLUDED
- #define BOOST_IOSTREAMS_DETAIL_TRANSLATE_INT_TYPE_HPP_INCLUDED
- #if defined(_MSC_VER)
- # pragma once
- #endif
- #include <boost/type_traits/is_same.hpp>
- namespace boost { namespace iostreams { namespace detail {
- template<bool IsSame>
- struct translate_int_type_impl;
- //
- // Template name: translate_char.
- // Description: Translates a character or an end-of-file indicator from the
- // int_type of one character traits type to the int_type of another.
- //
- template<typename SourceTr, typename TargetTr>
- typename TargetTr::int_type
- translate_int_type(typename SourceTr::int_type c)
- {
- typedef translate_int_type_impl<is_same<SourceTr, TargetTr>::value> impl;
- return impl::template inner<SourceTr, TargetTr>::translate(c);
- }
- //----------------------------------------------------------------------------//
- template<>
- struct translate_int_type_impl<true> {
- template<typename SourceTr, typename TargetTr>
- struct inner {
- static typename TargetTr::int_type
- translate(typename SourceTr::int_type c) { return c; }
- };
- };
- template<>
- struct translate_int_type_impl<false> {
- template<typename SourceTr, typename TargetTr>
- struct inner {
- static typename TargetTr::int_type
- translate(typename SourceTr::int_type c)
- {
- return SourceTr::eq_int_type(SourceTr::eof()) ?
- TargetTr::eof() :
- TargetTr::to_int_type(SourceTr::to_char_type(c));
- }
- };
- };
- } } } // End namespaces detail, iostreams, boost.
- #endif // #ifndef BOOST_IOSTREAMS_DETAIL_TRANSLATE_INT_TYPE_HPP_INCLUDED
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