1 files changed, 45 insertions, 0 deletions
diff --git a/src/boost/libs/mp11/test/mp_similar.cpp b/src/boost/libs/mp11/test/mp_similar.cpp
new file mode 100644
index 00000000..5fb538f5
--- /dev/null
+++ b/src/boost/libs/mp11/test/mp_similar.cpp
@@ -0,0 +1,45 @@
+
+// Copyright 2019 Peter Dimov.
+//
+// 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
+
+
+#include <boost/mp11/function.hpp>
+#include <boost/core/lightweight_test_trait.hpp>
+#include <type_traits>
+
+template<class> class X;
+template<class...> class Y;
+
+int main()
+{
+    using boost::mp11::mp_similar;
+    using boost::mp11::mp_true;
+    using boost::mp11::mp_false;
+
+    BOOST_TEST_TRAIT_TRUE((std::is_same<mp_similar<>, mp_true>));
+    BOOST_TEST_TRAIT_TRUE((std::is_same<mp_similar<void>, mp_true>));
+    BOOST_TEST_TRAIT_TRUE((std::is_same<mp_similar<void, void>, mp_true>));
+    BOOST_TEST_TRAIT_TRUE((std::is_same<mp_similar<void, void, void>, mp_true>));
+    BOOST_TEST_TRAIT_TRUE((std::is_same<mp_similar<void, void, void, void>, mp_true>));
+    BOOST_TEST_TRAIT_TRUE((std::is_same<mp_similar<void, void, void, void, void>, mp_true>));
+
+    BOOST_TEST_TRAIT_TRUE((std::is_same<mp_similar<void, int>, mp_false>));
+    BOOST_TEST_TRAIT_TRUE((std::is_same<mp_similar<void, void, int>, mp_false>));
+    BOOST_TEST_TRAIT_TRUE((std::is_same<mp_similar<void, void, void, int>, mp_false>));
+    BOOST_TEST_TRAIT_TRUE((std::is_same<mp_similar<void, void, void, void, int>, mp_false>));
+
+    BOOST_TEST_TRAIT_TRUE((std::is_same<mp_similar<X<void>>, mp_true>));
+    BOOST_TEST_TRAIT_TRUE((std::is_same<mp_similar<X<void>, X<int>>, mp_true>));
+    BOOST_TEST_TRAIT_TRUE((std::is_same<mp_similar<X<void>, X<int>, X<float>>, mp_true>));
+
+    BOOST_TEST_TRAIT_TRUE((std::is_same<mp_similar<Y<>>, mp_true>));
+    BOOST_TEST_TRAIT_TRUE((std::is_same<mp_similar<Y<>, Y<void>>, mp_true>));
+    BOOST_TEST_TRAIT_TRUE((std::is_same<mp_similar<Y<>, Y<void>, Y<void, void>>, mp_true>));
+    BOOST_TEST_TRAIT_TRUE((std::is_same<mp_similar<Y<>, Y<void>, Y<void, void>, Y<void, void, void>>, mp_true>));
+
+    return boost::report_errors();
+}