namespace detail
	{
		template<typename F, typename A>
		void for_each(const F& f, A&& value)
		{
			f(std::forward<A>(value));
		}

		template<typename F, typename A, typename... Args>
		void for_each(const F& f, A&& value, Args&&... args)
		{
			for_each(f, std::forward<A>(value));
			for_each(f, std::forward<Args>(args)...);
		}
	}

	template<typename F, typename... Args>
	void for_each(const F& f, Args&&... args)
	{
		detail::for_each(f, std::forward<Args>(args)...);
	}