1 files changed, 20 insertions, 0 deletions
diff --git a/src/boost/libs/hana/example/core/tag_of.cpp b/src/boost/libs/hana/example/core/tag_of.cpp
new file mode 100644
index 000000000..2c9ddf7b4
--- /dev/null
+++ b/src/boost/libs/hana/example/core/tag_of.cpp
@@ -0,0 +1,20 @@
+// Copyright Louis Dionne 2013-2017
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
+
+#include <boost/hana/core/tag_of.hpp>
+
+#include <type_traits>
+namespace hana = boost::hana;
+
+
+static_assert(std::is_same<hana::tag_of<int>::type, int>{}, "");
+static_assert(std::is_same<hana::tag_of<int&>::type, int>{}, "");
+static_assert(std::is_same<hana::tag_of<int const&>::type, int>{}, "");
+
+struct PersonTag;
+struct Person { using hana_tag = PersonTag; };
+static_assert(std::is_same<hana::tag_of<Person>::type, PersonTag>{}, "");
+static_assert(std::is_same<hana::tag_of<Person volatile&&>::type, PersonTag>{}, "");
+
+int main() { }