[Bug c++/15531] New: dynamic_cast fails (at runtime) when dependant on friendship of invoker

["gccbugs at contacts dot eelis dot net" <gcc-bugzilla at gcc dot gnu dot org>]

Consider the following snippet:

  struct Base
  {
    virtual ~Base () {}
  };

  class Derived : Base
  {
    friend int main ();
  };

  #include <cassert>

  int main ()
  {
    Base * p = new Derived;

    assert(dynamic_cast<Derived *>(p)); // fails
  }

When Derived is changed to publically inherit Base, the dynamic_cast succeeds.

-- 
           Summary: dynamic_cast fails (at runtime) when dependant on
                    friendship of invoker
           Product: gcc
           Version: 3.2.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: gccbugs at contacts dot eelis dot net
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: i486-slackware-linux
GCC target triplet: i486-slackware-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15531