Question about inheritance

[Peter V. Evans]

Hi,

I'm developing a program which makes heavy usage of inheritance.  Let me
give the example first:

class foo
{
public:
	typedef int hi;

	void doit (void)
	{
		if (sizeof(hi) == sizeof(int))
			puts("int");
		else
			puts("something else");
	}
};

class stuff : public foo
{
public:
	typedef double hi;
};

int
main (void)
{
	stuff s;

	s.doit();	// Prints out "int", not "something else"
	return 0;
}

---

The function doit, thus, does not see the derived class' "hi", only the
parent class.  I couldn't say if this is the correct behaviour, since I
don't know C++ as well as most others, but a better question would be,
how to get doit to somehow see the derived class "hi" instead of the
parent class "hi"?

Thanks for any help you can provide.
	Peter