[Bug c++/52212] New: friend declaration doesn't see previous friend of same function

[igodard at pacbell dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52212

             Bug #: 52212
           Summary: friend declaration doesn't see previous friend of same
                    function
    Classification: Unclassified
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: igod...@pacbell.net


This code:
 class D {
     class E{
         class F{};
         friend  void foo1(D::E::F& q);
         };
     friend  void foo1(D::E::F& q);
     };

 void foo1(D::E::F& q) {}

 int main(int argc, char** argv) { return 0; }

gets you:
 foo.cc:3:9: error: âclass D::E::Fâ is private
 foo.cc:6:26: error: within this context

Note that the same function was earlier made a friend of class E, and so can
see F. If you leave out the second friending, you get:
 foo.cc: In function âvoid foo1(D::E::F&)â:
 foo.cc:2:8: error: âclass D::Eâ is private
 foo.cc:9:21: error: within this context
which is correct; foo1 cannot see E without the second friend. But with both
friends foo1 should see everybody.