// (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) && (_MSC_VER >= 1020) | |
# 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 |