diff -Naur boost_1_69_0.org/boost/type_traits/detail/is_function_cxx_11.hpp boost_1_69_0/boost/type_traits/detail/is_function_cxx_11.hpp
--- boost_1_69_0.org/boost/type_traits/detail/is_function_cxx_11.hpp	2018-12-05 20:58:23.000000000 +0100
+++ boost_1_69_0/boost/type_traits/detail/is_function_cxx_11.hpp	2019-02-13 10:01:53.763446880 +0100
@@ -96,7 +96,7 @@
    template <class Ret, class ...Args BOOST_TT_NOEXCEPT_PARAM>
    struct is_function<Ret(Args..., ...)const volatile && BOOST_TT_NOEXCEPT_DECL> : public true_type {};
 
-#ifdef _MSC_VER
+#if defined(_MSC_VER) && !defined(_MANAGED)
 #ifdef __CLR_VER
    template <class Ret, class...Args BOOST_TT_NOEXCEPT_PARAM>
    struct is_function<Ret __clrcall(Args...)BOOST_TT_NOEXCEPT_DECL> : public true_type {};
diff -Naur boost_1_69_0.org/boost/type_traits/detail/is_member_function_pointer_cxx_11.hpp boost_1_69_0/boost/type_traits/detail/is_member_function_pointer_cxx_11.hpp
--- boost_1_69_0.org/boost/type_traits/detail/is_member_function_pointer_cxx_11.hpp	2018-12-05 20:58:23.000000000 +0100
+++ boost_1_69_0/boost/type_traits/detail/is_member_function_pointer_cxx_11.hpp	2019-02-13 10:02:17.739050015 +0100
@@ -108,7 +108,7 @@
    template <class Ret, class C, class ...Args BOOST_TT_NOEXCEPT_PARAM>
    struct is_member_function_pointer<Ret(C::*)(Args..., ...)const volatile && BOOST_TT_NOEXCEPT_DECL> : public true_type {};
 
-#ifdef _MSC_VER
+#if defined(_MSC_VER) && !defined(_MANAGED)
 #ifdef __CLR_VER
    template <class Ret, class C, class...Args BOOST_TT_NOEXCEPT_PARAM>
    struct is_member_function_pointer<Ret __clrcall(Args...)BOOST_TT_NOEXCEPT_DECL> : public true_type {};