Type2String

type_2_string.cpp

template<typename T>
struct Type2String
{
	static std::string value()
	{
		throw std::runtime_error("unregistered type");
	}
};

#define REGISTER_TYPE(t) \
template<> \
struct Type2String<t> \
{ \
	static std::string value() \
	{ \
		return #t; \
	} \
};

#define REGISTER_TYPE_WITH_NAME(t, n) \
template<> \
struct Type2String<t> \
{ \
	static std::string value() \
	{ \
		return n; \
	} \
};

REGISTER_TYPE_WITH_NAME(int, "int");

int main()
{
	cout << Type2String<int>::value() << endl;
}