lang/c/msgpack: reimplemented C++ binding with template-based static resolution design

git-svn-id: file:///Users/frsyuki/project/msgpack-git/svn/x@67 5a5092ae-2292-43ba-b2d5-dcab9c1a2731

cpp/type/nil.hpp

@@ -0,0 +1,47 @@
+//
+// MessagePack for C++ static resolution routine
+//
+// Copyright (C) 2008 FURUHASHI Sadayuki
+//
+//    Licensed under the Apache License, Version 2.0 (the "License");
+//    you may not use this file except in compliance with the License.
+//    You may obtain a copy of the License at
+//
+//        http://www.apache.org/licenses/LICENSE-2.0
+//
+//    Unless required by applicable law or agreed to in writing, software
+//    distributed under the License is distributed on an "AS IS" BASIS,
+//    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//    See the License for the specific language governing permissions and
+//    limitations under the License.
+//
+#ifndef MSGPACK_TYPE_NIL_HPP__
+#define MSGPACK_TYPE_NIL_HPP__
+
+#include "msgpack/object.hpp"
+
+namespace msgpack {
+namespace type {
+
+
+struct nil { };
+
+inline nil& operator<< (nil& v, object o)
+{
+	if(o.type != NIL) { throw type_error(); }
+	return v;
+}
+
+template <typename Stream>
+inline const nil& operator>> (const nil& v, packer<Stream>& o)
+{
+	o.pack_nil();
+	return v;
+}
+
+
+}  // namespace type
+}  // namespace msgpack
+
+#endif /* msgpack/type/nil.hpp */
+