1 files changed, 29 insertions, 0 deletions
diff --git a/src/boost/libs/hana/example/struct/keys.cpp b/src/boost/libs/hana/example/struct/keys.cpp
new file mode 100644
index 00000000..37e97040
--- /dev/null
+++ b/src/boost/libs/hana/example/struct/keys.cpp
@@ -0,0 +1,29 @@
+// 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/assert.hpp>
+#include <boost/hana/define_struct.hpp>
+#include <boost/hana/equal.hpp>
+#include <boost/hana/keys.hpp>
+#include <boost/hana/string.hpp>
+#include <boost/hana/tuple.hpp>
+
+#include <string>
+namespace hana = boost::hana;
+
+
+struct Person {
+    BOOST_HANA_DEFINE_STRUCT(Person,
+        (std::string, name),
+        (unsigned short, age)
+    );
+};
+
+int main() {
+    Person john{"John", 30};
+    BOOST_HANA_CONSTANT_CHECK(
+        hana::keys(john) == hana::make_tuple(BOOST_HANA_STRING("name"),
+                                             BOOST_HANA_STRING("age"))
+    );
+}