Do not suppress already suppressed warnings

examples/constexpr14_sort_check.cpp

@@ -1,4 +1,4 @@
-// Copyright 2013-2016 Antony Polukhin
+// Copyright 2013-2017 Antony Polukhin
 
 // Distributed under the Boost Software License, Version 1.0.
 // (See the accompanying file LICENSE_1_0.txt

examples/registry.cpp

@@ -1,4 +1,4 @@
-// Copyright 2013-2015 Antony Polukhin
+// Copyright 2013-2017 Antony Polukhin
 
 // Distributed under the Boost Software License, Version 1.0.
 // (See the accompanying file LICENSE_1_0.txt

examples/user_defined_typeinfo.hpp

@@ -47,11 +47,20 @@ namespace my_namespace { namespace detail {
     template <> struct typenum<my_classes>{ enum {value = 3}; };
     template <> struct typenum<my_string>{  enum {value = 4}; };
 
+#ifdef BOOST_MSVC
+#pragma warning(push)
+#pragma warning(disable: 4510 4512 4610) // non-copyable non-constructable type
+#endif
+
     // my_typeinfo structure is used to save type number
     struct my_typeinfo {
         const char* const type_;
     };
 
+#ifdef BOOST_MSVC
+#pragma warning(pop)
+#endif
+
     const my_typeinfo infos[5] = {
         {"void"}, {"my_class"}, {"my_struct"}, {"my_classes"}, {"my_string"}
     };