1 files changed, 23 insertions, 0 deletions
diff --git a/src/boost/libs/hana/example/contains.cpp b/src/boost/libs/hana/example/contains.cpp
new file mode 100644
index 00000000..ce7bc5d1
--- /dev/null
+++ b/src/boost/libs/hana/example/contains.cpp
@@ -0,0 +1,23 @@
+// 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/contains.hpp>
+#include <boost/hana/integral_constant.hpp>
+#include <boost/hana/set.hpp>
+#include <boost/hana/tuple.hpp>
+#include <boost/hana/type.hpp>
+namespace hana = boost::hana;
+
+
+BOOST_HANA_CONSTANT_CHECK(hana::contains(hana::make_tuple(2, hana::int_c<2>, hana::int_c<3>, 'x'), hana::int_c<3>));
+
+BOOST_HANA_CONSTANT_CHECK(hana::contains(hana::make_set(hana::int_c<3>, hana::type_c<void>), hana::type_c<void>));
+
+// contains can be applied in infix notation
+BOOST_HANA_CONSTANT_CHECK(
+    hana::make_tuple(2, hana::int_c<2>, hana::int_c<3>, 'x') ^hana::contains^ hana::int_c<2>
+);
+
+int main() { }