ndnboost: Include boost::iostreams for internal use.
diff --git a/include/ndnboost/iostreams/detail/codecvt_holder.hpp b/include/ndnboost/iostreams/detail/codecvt_holder.hpp
new file mode 100644
index 0000000..7b5e929
--- /dev/null
+++ b/include/ndnboost/iostreams/detail/codecvt_holder.hpp
@@ -0,0 +1,63 @@
+// (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.
+
+// Contains machinery for performing code conversion.
+
+#ifndef NDNBOOST_IOSTREAMS_DETAIL_CODECVT_HOLDER_HPP_INCLUDED
+#define NDNBOOST_IOSTREAMS_DETAIL_CODECVT_HOLDER_HPP_INCLUDED
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+#include <cwchar> // mbstate_t.
+#include <locale> // codecvt, locale.
+#include <ndnboost/config.hpp> // HAS_MACRO_USE_FACET.
+#include <ndnboost/iostreams/detail/config/codecvt.hpp>
+
+namespace ndnboost { namespace iostreams { namespace detail {
+
+struct default_codecvt {
+ typedef wchar_t intern_type, from_type;
+ typedef char extern_type, to_type;
+ typedef std::mbstate_t state_type;
+};
+
+template<typename Codecvt>
+struct codecvt_holder {
+ typedef Codecvt codecvt_type;
+ const codecvt_type& get() const { return codecvt_; }
+ void imbue(const std::locale&) { }
+ Codecvt codecvt_;
+};
+
+template<>
+struct codecvt_holder<default_codecvt> {
+ typedef std::codecvt<wchar_t, char, std::mbstate_t> codecvt_type;
+ codecvt_holder() { reset_codecvt(); }
+ const codecvt_type& get() const { return *codecvt_; }
+ void imbue(const std::locale& loc)
+ {
+ loc_ = loc;
+ reset_codecvt();
+ }
+ void reset_codecvt()
+ {
+ using namespace std;
+ #ifndef NDNBOOST_HAS_MACRO_USE_FACET
+ codecvt_ = & use_facet< codecvt_type >(loc_);
+ #else
+ codecvt_ = & _USE(loc_, codecvt_type);
+ #endif
+ }
+ std::locale loc_; // Prevent codecvt_ from being freed.
+ const codecvt_type* codecvt_;
+};
+
+} } } // End namespaces detail, iostreams, boost.
+
+#endif // #ifndef NDNBOOST_IOSTREAMS_DETAIL_CODECVT_HOLDER_HPP_INCLUDED