Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!pt.cs.cmu.edu!OREO.GRAPHICS.CS.CMU.EDU!gleicher
From: gleicher@CS.CMU.EDU (Michael Gleicher)
Newsgroups: gnu.g++
Subject: G++ bug/question
Message-ID: <GLEICHER.90Feb23150130@OREO.GRAPHICS.CS.CMU.EDU>
Date: 23 Feb 90 20:01:30 GMT
Sender: gleicher@OREO.GRAPHICS.CS.CMU.EDU
Distribution: gnu
Organization: School of Computer Science, Carnegie Mellon University
Lines: 35


The following program causes g++ 1.36.1 to "g++: Program got fatal Signal 10"
(which is a bus error). The same problem comes when I try to do similar things
in a real program. The line which causes the problem is the definition of
H::g().

I am running an old version of g++ (1.36.1), but before upgrading, I'd like to
be sure this problem has been solved.

//------- file mi-test.cc -----------//
class A { public: virtual void f(); };
class B { public: virtual void f(); };

class D : public A,public B { 
 public: 
  virtual void f();
  virtual void g();
};

class H : public A, public D {
 public:
  virtual void f();
  virtual void g();
};
//----------------------------------------------//

One other related question:
I have to define H::f() (and D::f()) otherwise g++ tells me I have an
ambiguous method name. If f wasn't virtual, I don't have this problem. Is this
supposed to be a feature?

Oh yea, Sun 3/60 w/12meg running Mach (if that makes a difference).

Thanks,
	Mike