1 files changed, 32 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/core/common.cpp b/src/boost/libs/hana/test/core/common.cpp
new file mode 100644
index 000000000..c3b24f900
--- /dev/null
+++ b/src/boost/libs/hana/test/core/common.cpp
@@ -0,0 +1,32 @@
+// 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/common.hpp>
+
+#include <type_traits>
+namespace hana = boost::hana;
+
+
+template <typename T>
+struct ImplicitConvertibleTo {
+    constexpr operator T() const { return {}; }
+};
+
+struct T { };
+struct invalid;
+
+static_assert(std::is_same<hana::common_t<T, T>, T>{}, "");
+static_assert(std::is_same<hana::common_t<invalid, invalid>, invalid>{}, "");
+static_assert(std::is_same<hana::common_t<void, void>, void>{}, "");
+
+static_assert(std::is_same<hana::common_t<ImplicitConvertibleTo<T>, T>, T>{}, "");
+static_assert(std::is_same<hana::common_t<T, ImplicitConvertibleTo<T>>, T>{}, "");
+
+static_assert(hana::has_common<T, T>{}, "");
+static_assert(!hana::has_common<void, T>{}, "");
+static_assert(!hana::has_common<T, void>{}, "");
+static_assert(!hana::has_common<invalid, T>{}, "");
+static_assert(!hana::has_common<T, invalid>{}, "");
+
+int main() { }