adding member pointer manipulations to interface

example/remove_member_pointer/example.cpp

@@ -0,0 +1,41 @@
+/*!
+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;
+
+template<typename T, typename Expect>
+void test() {
+    using U = ct::remove_member_pointer<T>;
+    static_assert(std::is_same<Expect, U>{}, "");
+}
+
+int main() {
+
+    {
+        using T = int(foo::*)(int) const;
+        using expect = int(int) const;
+        test<T, expect>();
+    } {
+        using T = int foo::*;
+        using expect = int;
+        test<T, expect>();
+    } {
+        using T = int(int);
+        test<T, T>();
+    } {
+        using T = int(*)(int);
+        test<T, T>();
+    } {
+        using T = int(&)(int);
+        test<T, T>();
+    }
+}
+