🚀 go-pugleaf

When a friend function of a private (or protected) nested class tries
to use the type name of the class it's a friend of, I get errors under
Borland C++ 4.5 but not under g++ 2.6.3.  Who's right?

I'd really rather use friends than static mfns, since the functions in
the real code I'm writing are being used as callbacks in a window system.

As a fer-instance:

class Outer
{
    class Inner
    {
        int x;

    public:
        Inner(void): x(0)  {}
        friend void pal(Inner &);  // Friend fn that modifies an Inner.
        static void smf(Inner &);  // Static mfn that does the same thing.
    } i1, i2;

public:
    Outer(void) {}
    void blah(void)
    {
        smf(i1);  smf(i2);
        pal(i1);  pal(i2);
    }
};

void Outer::Inner::smf(Outer::Inner & i)  // No problem.
{
    i.x++;
}

void pal(Outer::Inner & i)  // BC++ error: "Outer::Inner is not accessible"!
{
    i.x++;
}


int main(void)
{
    Outer outer;
    outer.blah();
    return 0;
}

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