ndnboost: Include boost::iostreams for internal use.
diff --git a/include/ndnboost/random/detail/ptr_helper.hpp b/include/ndnboost/random/detail/ptr_helper.hpp
new file mode 100644
index 0000000..c07a88a
--- /dev/null
+++ b/include/ndnboost/random/detail/ptr_helper.hpp
@@ -0,0 +1,94 @@
+/* boost random/detail/ptr_helper.hpp header file
+ *
+ * Copyright Jens Maurer 2002
+ * 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 for most recent version including documentation.
+ *
+ * $Id: ptr_helper.hpp 24096 2004-07-27 03:43:34Z dgregor $
+ *
+ */
+
+#ifndef NDNBOOST_RANDOM_DETAIL_PTR_HELPER_HPP
+#define NDNBOOST_RANDOM_DETAIL_PTR_HELPER_HPP
+
+#include <ndnboost/config.hpp>
+
+
+namespace ndnboost {
+namespace random {
+namespace detail {
+
+// type_traits could help here, but I don't want to depend on type_traits.
+template<class T>
+struct ptr_helper
+{
+ typedef T value_type;
+ typedef T& reference_type;
+ typedef const T& rvalue_type;
+ static reference_type ref(T& r) { return r; }
+ static const T& ref(const T& r) { return r; }
+};
+
+#ifndef NDNBOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+template<class T>
+struct ptr_helper<T&>
+{
+ typedef T value_type;
+ typedef T& reference_type;
+ typedef T& rvalue_type;
+ static reference_type ref(T& r) { return r; }
+ static const T& ref(const T& r) { return r; }
+};
+
+template<class T>
+struct ptr_helper<T*>
+{
+ typedef T value_type;
+ typedef T& reference_type;
+ typedef T* rvalue_type;
+ static reference_type ref(T * p) { return *p; }
+ static const T& ref(const T * p) { return *p; }
+};
+#endif
+
+} // namespace detail
+} // namespace random
+} // namespace ndnboost
+
+//
+// NDNBOOST_RANDOM_PTR_HELPER_SPEC --
+//
+// Helper macro for broken compilers defines specializations of
+// ptr_helper.
+//
+#ifdef NDNBOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+# define NDNBOOST_RANDOM_PTR_HELPER_SPEC(T) \
+namespace ndnboost { namespace random { namespace detail { \
+template<> \
+struct ptr_helper<T&> \
+{ \
+ typedef T value_type; \
+ typedef T& reference_type; \
+ typedef T& rvalue_type; \
+ static reference_type ref(T& r) { return r; } \
+ static const T& ref(const T& r) { return r; } \
+}; \
+ \
+template<> \
+struct ptr_helper<T*> \
+{ \
+ typedef T value_type; \
+ typedef T& reference_type; \
+ typedef T* rvalue_type; \
+ static reference_type ref(T * p) { return *p; } \
+ static const T& ref(const T * p) { return *p; } \
+}; \
+}}}
+#else
+# define NDNBOOST_RANDOM_PTR_HELPER_SPEC(T)
+#endif
+
+#endif // NDNBOOST_RANDOM_DETAIL_PTR_HELPER_HPP