[Bug c++/59482] New: A friend class cannot inherit a private class

[ville.voutilainen at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59482

            Bug ID: 59482
           Summary: A friend class cannot inherit a private class
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ville.voutilainen at gmail dot com

Test:

struct aa { 
    friend struct cc; 
private: 
    struct bb {}; 
}; 

struct cc : aa::bb {};

Output:
ville.cpp:1:47: error: ‘struct aa::bb’ is private
 struct aa { friend struct cc; private: struct bb {}; }; struct cc : aa::bb {};
                                               ^
ville.cpp:1:73: error: within this context
 struct aa { friend struct cc; private: struct bb {}; }; struct cc : aa::bb {};
                                                                         ^
Clang 3.4 accepts the code.