adding member pointer manipulations to interface

example/apply_member_pointer/example.cpp

@@ -0,0 +1,32 @@
+/*!
+Copyright (c) 2016 Barrett Adair
+
+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/callable_traits.hpp>
+
+namespace ct = callable_traits;
+
+struct foo;
+struct bar;
+
+using expect = int(foo::*)(int);
+
+template<typename T>
+void test() {
+    using U = ct::apply_member_pointer<T, foo>;
+    static_assert(std::is_same<expect, U>{}, "");
+}
+
+int main() {
+    test<int(int)>();
+    test<int(*)(int)>();
+    test<int(*&)(int)>();
+    test<int(* const)(int)>();
+    test<int(&)(int)>();
+    test<int(foo::*)(int)>();
+    test<int(bar::*)(int)>();
+}
+