c++/5659: default access for class/struct bug

[pcarlini@unitus.it]

>Number:         5659
>Category:       c++
>Synopsis:       default access for class/struct bug
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Feb 11 12:46:00 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     Michael Matz / Paolo Carlini
>Release:        g++ (GCC) 3.1 20020209 (experimental)
>Organization:
>Environment:
i686-pc-linux-gnu
>Description:
look at this:
---- snip -----
class Outer {
    private:
#if 1
        class Inner;
#else
        struct Inner;
#endif
        Inner *i;
    public:
        void pub();
};

struct Outer::Inner {
    Inner(int i) : mem(i) {}
    int mem;
};

void Outer::pub() { i = new Inner(42); }
---- snap -----

Notice how Outer::Inner is once declared with 'class', once with 'struct',
but defined with 'struct' in evry case.  The current HEAD thinks:

access.cpp:14: `Outer::Inner::Inner(int)' is private
access.cpp:20: within this context

(when it's changed to #if 0 it of course works).  Now the standard says
(if we read it correctly) (11.2), that the default access right of members
depends on the _definition_ not declaration of a class.
>How-To-Repeat:
-gcc3.0.x compiles the testcase just fine, as EDG-based
compilers do.
-In such cases some compilers warn about "inconsistent use
of class/struct keywords". 
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: