struct false_t
{
	enum { res = false };
};

struct true_t
{
	enum { res = true };
};

template<int i> 
struct check_t
{
	enum
	{
		res = (i!=0) ? true_t::res : false_t::res
	};
};

struct false_t {
  static const bool res = false;
};

struct true_t {
  static const bool res = true;
};

template<int i> 
struct check_t {
  static const bool res = i != 0;
};