///////////////////////////////////////////////////////////////////////////////////
/// OpenGL Image (gli.g-truc.net)
///
/// Copyright (c) 2008 - 2013 G-Truc Creation (www.g-truc.net)
/// Permission is hereby granted, free of charge, to any person obtaining a copy
/// of this software and associated documentation files (the "Software"), to deal
/// in the Software without restriction, including without limitation the rights
/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
/// copies of the Software, and to permit persons to whom the Software is
/// furnished to do so, subject to the following conditions:
///
/// The above copyright notice and this permission notice shall be included in
/// all copies or substantial portions of the Software.
///
/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
/// THE SOFTWARE.
///
/// @ref core
/// @file gli/core/shared_ptr.hpp
/// @date 2012-09-01 / 2013-01-12
/// @author Christophe Riccio
///////////////////////////////////////////////////////////////////////////////////

#ifndef GLI_SHARED_PTR_INCLUDED
#define GLI_SHARED_PTR_INCLUDED

#include <cassert>

namespace gli
{
	template <typename T>
	class shared_ptr
	{
/* TODO: make_shared
		template typename T
		class refcounter
		{
			Long Counter;
			T Data;
		};
*/

	public:
		shared_ptr();
		shared_ptr(shared_ptr const & SharedPtr);
		explicit shared_ptr(T * Pointer);
		~shared_ptr();

		T * get() const;
		T const & operator*() const;
		T & operator*();
		T const * const operator->() const;
		T * operator->();
		shared_ptr& operator=(shared_ptr const & SharedPtr);
		shared_ptr& operator=(T * Pointer);
		bool operator==(shared_ptr const & SharedPtr) const;
		bool operator!=(shared_ptr const & SharedPtr) const;
		
		void reset();
		void reset(T * Pointer);
		long use_count() const;
		bool unique() const;

	private:
		long * Counter;
		T * Pointer;
	};
}//namespace gli

#include "shared_ptr.inl"

#endif //GLI_SHARED_PTR_INCLUDED
