ndnboost: Include boost::iostreams for internal use.
diff --git a/include/ndnboost/iostreams/checked_operations.hpp b/include/ndnboost/iostreams/checked_operations.hpp
new file mode 100644
index 0000000..2a27065
--- /dev/null
+++ b/include/ndnboost/iostreams/checked_operations.hpp
@@ -0,0 +1,158 @@
+// (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
+// (C) Copyright 2005-2007 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 implementations of get, read, put, write and seek which
+// check a device's mode at runtime instead of compile time.
+
+#ifndef NDNBOOST_IOSTREAMS_DETAIL_CHECKED_OPERATIONS_HPP_INCLUDED
+#define NDNBOOST_IOSTREAMS_DETAIL_CHECKED_OPERATIONS_HPP_INCLUDED
+
+#include <ndnboost/iostreams/categories.hpp>
+#include <ndnboost/iostreams/detail/dispatch.hpp>
+#include <ndnboost/iostreams/detail/error.hpp>
+#include <ndnboost/iostreams/detail/config/unreachable_return.hpp>
+#include <ndnboost/iostreams/get.hpp>
+#include <ndnboost/iostreams/put.hpp>
+#include <ndnboost/iostreams/read.hpp>
+#include <ndnboost/iostreams/seek.hpp>
+#include <ndnboost/iostreams/traits.hpp>
+#include <ndnboost/iostreams/write.hpp>
+#include <ndnboost/throw_exception.hpp>
+
+// Must come last.
+#include <ndnboost/iostreams/detail/config/disable_warnings.hpp> // MSVC.
+
+namespace ndnboost { namespace iostreams {
+
+namespace detail {
+
+template<typename T>
+struct read_write_if_impl;
+
+template<typename T>
+struct seek_if_impl;
+
+} // End namespace detail.
+
+template<typename T>
+typename int_type_of<T>::type get_if(T& t)
+{
+ typedef typename detail::dispatch<T, input, output>::type tag;
+ return detail::read_write_if_impl<tag>::get(t);
+}
+
+template<typename T>
+inline std::streamsize
+read_if(T& t, typename char_type_of<T>::type* s, std::streamsize n)
+{
+ typedef typename detail::dispatch<T, input, output>::type tag;
+ return detail::read_write_if_impl<tag>::read(t, s, n);
+}
+
+template<typename T>
+bool put_if(T& t, typename char_type_of<T>::type c)
+{
+ typedef typename detail::dispatch<T, output, input>::type tag;
+ return detail::read_write_if_impl<tag>::put(t, c);
+}
+
+template<typename T>
+inline std::streamsize write_if
+ (T& t, const typename char_type_of<T>::type* s, std::streamsize n)
+{
+ typedef typename detail::dispatch<T, output, input>::type tag;
+ return detail::read_write_if_impl<tag>::write(t, s, n);
+}
+
+template<typename T>
+inline std::streampos
+seek_if( T& t, stream_offset off, NDNBOOST_IOS::seekdir way,
+ NDNBOOST_IOS::openmode which = NDNBOOST_IOS::in | NDNBOOST_IOS::out )
+{
+ using namespace detail;
+ typedef typename dispatch<T, random_access, any_tag>::type tag;
+ return seek_if_impl<tag>::seek(t, off, way, which);
+}
+
+namespace detail {
+
+//------------------Specializations of read_write_if_impl---------------------//
+
+template<>
+struct read_write_if_impl<input> {
+ template<typename T>
+ static typename int_type_of<T>::type get(T& t)
+ { return iostreams::get(t); }
+
+ template<typename T>
+ static std::streamsize
+ read(T& t, typename char_type_of<T>::type* s, std::streamsize n)
+ { return iostreams::read(t, s, n); }
+
+ template<typename T>
+ static bool put(T&, typename char_type_of<T>::type)
+ { ndnboost::throw_exception(cant_write());
+ NDNBOOST_IOSTREAMS_UNREACHABLE_RETURN(false) }
+
+ template<typename T>
+ static std::streamsize
+ write(T&, const typename char_type_of<T>::type*, std::streamsize)
+ { ndnboost::throw_exception(cant_write());
+ NDNBOOST_IOSTREAMS_UNREACHABLE_RETURN(0) }
+};
+
+template<>
+struct read_write_if_impl<output> {
+ template<typename T>
+ static typename int_type_of<T>::type get(T&)
+ { ndnboost::throw_exception(cant_read());
+ NDNBOOST_IOSTREAMS_UNREACHABLE_RETURN(0) }
+
+ template<typename T>
+ static std::streamsize
+ read(T&, typename char_type_of<T>::type*, std::streamsize)
+ { ndnboost::throw_exception(cant_read());
+ NDNBOOST_IOSTREAMS_UNREACHABLE_RETURN(0) }
+
+ template<typename T>
+ static bool put(T& t, typename char_type_of<T>::type c)
+ { return iostreams::put(t, c); }
+
+ template<typename T>
+ static std::streamsize
+ write( T& t, const typename char_type_of<T>::type* s,
+ std::streamsize n )
+ { return iostreams::write(t, s, n); }
+};
+
+//------------------Specializations of seek_if_impl---------------------------//
+
+template<>
+struct seek_if_impl<random_access> {
+ template<typename T>
+ static std::streampos
+ seek( T& t, stream_offset off, NDNBOOST_IOS::seekdir way,
+ NDNBOOST_IOS::openmode which )
+ { return iostreams::seek(t, off, way, which); }
+};
+
+template<>
+struct seek_if_impl<any_tag> {
+ template<typename T>
+ static std::streampos
+ seek(T&, stream_offset, NDNBOOST_IOS::seekdir, NDNBOOST_IOS::openmode)
+ { ndnboost::throw_exception(cant_seek());
+ NDNBOOST_IOSTREAMS_UNREACHABLE_RETURN(std::streampos()) }
+};
+
+} // End namespace detail.
+
+} } // End namespaces iostreams, boost.
+
+#include <ndnboost/iostreams/detail/config/enable_warnings.hpp> // MSVC.
+
+#endif // #ifndef NDNBOOST_IOSTREAMS_DETAIL_CHECKED_OPERATIONS_HPP_INCLUDED