TITLE: Private members are not publicly invisible

[ Material adapted from "C++ Gotchas", tutorial notes by 
  Tom Cargill, p. 11]

Even though private members may not be accessed, their
names are still visible. There are situations in which
a client programmer must read the private part of a class
declaration, even though the information is inaccessible.
For example, the following program results in an ambiguity
error:

	class C {
	    void f (char*); // private
	  public:
	    void f (float); // public
	};

	int main ()
	{
		C x;
		x.f(0); // ambiguous
		return 0;
	}

Remember, when trying to match a call against a method, the 
compiler first limits based on scoping, then overloading. Only
after these are considered, does access come into play.