Re: Virtual base class in CINT
Joanne Bogart (jrb@SLAC.stanford.edu)
Wed, 31 Mar 1999 15:26:35 -0800
Pasha Murat wrote:
>
> Rob Shanks writes:
> > I'm trying to generate a CINT file for some classes of mine and
> > have run into some difficulty. I have a class called MCDiag which
> > inherits from a pure virtual class, EventSource. The problem is that
> > CINT seems to be refusing to generate Streamer() and ShowMembers()
> > methods for my MCDiag class. I looked around the web site and saw that
> > by adding certain characters into the LinkDef file one could stop these
> > methods from being generated. I'm sure I don't have those flags set in
> > the LinkDef file. I just can't figure out why CINT won't generate the
> > Streamer() and ShowMembers() methods. Here is what happens when I call
> > rootcint:
> >
> > V:\LCD\RootApps\Utils\prod\src>rootcint -f UtilsCint.cxx -c
> > -I..\..\..\Event\pro
> > d\src -Iv:\lcd\lcd-working\StdHep\src\inc EventSource.h readStdFile.h
> > MCDiag.h UtilsLinkDef.h
> > Note: operator new() masked 1c
> > Note: operator delete() masked 1c
> > Class MCDiag: Streamer() not declared
> > Class MCDiag: ShowMembers() not declared
> >
> > V:\LCD\RootApps\Utils\prod\src>
> >
> > The odd thing is that the class readStdFile also inherits from
> > the virtual base class EventSource and seems to get all of it's methods
> > generated just fine.
> >
> > Suggestions?
> >
> > Rob Shanks
> > rshanks@slac.stanford.edu
>
> I'd guess that you're missing ClassDef/ClassImp macros in your MCDiag class.
>
> -pasha
That's a pretty good guess. I looked at it with Rob and we discovered he
had a semi-colon following ClassImp(..) which apparently interferes with
the operation of the macro. Minus the semi-colon, everything is fine.
Joanne