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Referring to Section 3.4.4 in Draft: 2 December 1996
    Elaborated Type Specifiers

if one was to define a nested class such as:

// In    file_A.h
struct Outer {

    struct Inner {
        int a;
    };

    int b;
};


If in another translation unit such as foo.cc, it was undesirable to
include the entire header file "fille_A.h" but I wanted to make
reference to class Inner for the purposes of declaring either a pointer
or reference such as:

Outer::Inner *ptr;

how would one go about generating a forward declaration for this
construct?

"Neal G." <ngr@bagit.synnet.com> writes:
> From reading the Draft it appears that a forward declaration such as:
>
> struct Outer::Inner;    // "error cannot introduce a qualified type"
>
> is illegal!

Without seeing the declaration of struct Outer, the compiler cannot tell
if you are even allowed to use Outer::Inner (it might be private).

Bye,
 Jens.
--
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