[Bug c++/19948] [4.0/4.1 Regression] ICE: tree check: expected class 'declaration', have 'exceptional' (error_mark) in pushtag, at cp/name-lookup.c:4658

[fang at csl dot cornell dot edu]

------- Additional Comments From fang at csl dot cornell dot edu  2005-02-27 06:25 -------
1) Has anyone figured out a workaround to this yet?  I suppose I could remove some using 
namespace declarations and prefix type names with namespaces...  I'll keep tinkering around.  

2) New and perhaps closely related bug?
g++-4.0 is also rejecting-valid the following code, tweaked from Andrew's example to reproduce 
something else I'm doing in my project: (using same version info as reported here)

//-------------- snip ---------------
namespace util
{
  class persistent_object_manager;
  namespace memory
  {
    class pointer_manipulator
    {
      friend class persistent_object_manager;
    };
  }
}
namespace util
{
  using namespace memory;

  class persistent_object_manager
  {
        static const int foo;
  };
}

namespace util {
        const int
        persistent_object_manager::foo = 666;
}
//--------------- end snip ----------------
g++-4.0 -c blah.cc -o blah.o
reports:
blah.cc:24: error: 'persistent_object_manager' has not been declared

whereas 3.3 and 3.4 accept the code.  
Removing the friend declaration on line 8 allows g++-4.0 to compile.  
Removing the using namespace memory line 14 also allows g++-4.0 to compile.  

It was difficult to find a bug in the bugzilla database with the same characteristics.  
Should I file a separate bug report for this one or just tack it on to this one because it's probably closely 
related?  

-- David

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19948