/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * The contents of this file are subject to the Netscape Public License
 * Version 1.0 (the "NPL"); you may not use this file except in
 * compliance with the NPL.  You may obtain a copy of the NPL at
 * http://www.mozilla.org/NPL/
 *
 * Software distributed under the NPL is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
 * for the specific language governing rights and limitations under the
 * NPL.
 *
 * The Initial Developer of this code under the NPL is Netscape
 * Communications Corporation.  Portions created by Netscape are
 * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
 * Reserved.
 */

#pragma once

template <class T>
class opaque_ptr
	{
		friend bool operator==( const opaque_ptr<T>&, const opaque_ptr<T>& );

		public:
			opaque_ptr( const T* ptr = 0 ) : _ptr(ptr) { }
				// Note: _not_ |explicit|

		private:
			const T* _ptr;
	};

template <class T>
inline
bool
operator==( const opaque_ptr<T>& L, const opaque_ptr<T>& R )
	{
		return L._ptr == R._ptr;
	}