ndnboost: Include boost::iostreams for internal use.
diff --git a/include/ndnboost/iostreams/detail/bool_trait_def.hpp b/include/ndnboost/iostreams/detail/bool_trait_def.hpp
new file mode 100644
index 0000000..361fa23
--- /dev/null
+++ b/include/ndnboost/iostreams/detail/bool_trait_def.hpp
@@ -0,0 +1,49 @@
+// (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 NDNBOOST_IOSTREAMS_DETAIL_BOOL_TRAIT_DEF_HPP_INCLUDED
+#define NDNBOOST_IOSTREAMS_DETAIL_BOOL_TRAIT_DEF_HPP_INCLUDED
+
+#include <ndnboost/config.hpp> // NDNBOOST_STATIC_CONSTANT.
+#include <ndnboost/iostreams/detail/template_params.hpp>
+#include <ndnboost/mpl/aux_/lambda_support.hpp>
+#include <ndnboost/mpl/bool.hpp>
+#include <ndnboost/preprocessor/cat.hpp>
+#include <ndnboost/preprocessor/repetition/enum_params.hpp>
+#include <ndnboost/type_traits/detail/yes_no_type.hpp>
+
+//
+// Macro name: NDNBOOST_IOSTREAMS_BOOL_TRAIT_DEF
+// Description: Used to generate the traits classes is_istream, is_ostream,
+// etc.
+//
+#if NDNBOOST_WORKAROUND(__BORLANDC__, NDNBOOST_TESTED_AT(0x582))
+# define NDNBOOST_IOSTREAMS_TRAIT_NAMESPACE(trait)
+#else
+# define NDNBOOST_IOSTREAMS_TRAIT_NAMESPACE(trait) NDNBOOST_PP_CAT(trait, _impl_)::
+#endif
+#define NDNBOOST_IOSTREAMS_BOOL_TRAIT_DEF(trait, type, arity) \
+ namespace NDNBOOST_PP_CAT(trait, _impl_) { \
+ NDNBOOST_IOSTREAMS_TEMPLATE_PARAMS(arity, T) \
+ type_traits::yes_type helper \
+ (const volatile type NDNBOOST_IOSTREAMS_TEMPLATE_ARGS(arity, T)*); \
+ type_traits::no_type helper(...); \
+ template<typename T> \
+ struct impl { \
+ NDNBOOST_STATIC_CONSTANT(bool, value = \
+ (sizeof(NDNBOOST_IOSTREAMS_TRAIT_NAMESPACE(trait) \
+ helper(static_cast<T*>(0))) == \
+ sizeof(type_traits::yes_type))); \
+ }; \
+ } \
+ template<typename T> \
+ struct trait \
+ : mpl::bool_<NDNBOOST_PP_CAT(trait, _impl_)::impl<T>::value> \
+ { NDNBOOST_MPL_AUX_LAMBDA_SUPPORT(1, trait, (T)) }; \
+ /**/
+
+#endif // #ifndef NDNBOOST_IOSTREAMS_DETAIL_BOOL_TRAIT_DEF_HPP_INCLUDED