1 files changed, 46 insertions, 0 deletions
diff --git a/src/boost/libs/bind/test/protect_test2.cpp b/src/boost/libs/bind/test/protect_test2.cpp
new file mode 100644
index 000000000..8da840552
--- /dev/null
+++ b/src/boost/libs/bind/test/protect_test2.cpp
@@ -0,0 +1,46 @@
+// protect_test2.cpp
+//
+// Copyright 2020 Peter Dimov
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/bind/protect.hpp>
+#include <boost/core/lightweight_test_trait.hpp>
+#include <boost/core/is_same.hpp>
+
+template<class T, class F> void test( F )
+{
+    BOOST_TEST_TRAIT_TRUE((boost::core::is_same<typename T::result_type, typename F::result_type>));
+}
+
+struct X
+{
+    struct result_type {};
+};
+
+struct Y
+{
+};
+
+template<class T, class U> struct inherit: T, U
+{
+};
+
+template<class F> void test2( F )
+{
+    // test that F doesn't have ::result_type
+    BOOST_TEST_TRAIT_TRUE((boost::core::is_same<typename inherit<F, X>::result_type, typename X::result_type>));
+}
+
+int main()
+{
+    test<X>( boost::protect( X() ) );
+
+#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && !defined(BOOST_NO_CXX11_DECLTYPE) && !(defined(BOOST_GCC) && BOOST_GCC < 40600)
+
+    test2( boost::protect( Y() ) );
+
+#endif
+
+    return boost::report_errors();
+}