Excluding MSVC from unsupported feature tests

example/can_invoke_constexpr_function_pointer.cpp

@@ -5,9 +5,15 @@ 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 <callable_traits/can_invoke_constexpr.hpp>
+#ifdef CALLABLE_TRAITS_MSVC
+//feature is unsupported in MSVC
+int main(){ return 0; };
+#else
+
 //[ can_invoke_constexpr_function_pointer
 #include <type_traits>
-#include <callable_traits/callable_traits.hpp>
+#include <callable_traits/can_invoke_constexpr.hpp>
 
 namespace ct = callable_traits;
 
@@ -37,3 +43,4 @@ static_assert(!ct::can_invoke_constexpr(eight_c{}, nullptr), "");
 
 int main() {}
 //]
+#endif