Re: [boost] Re: shared_ptr problem

From: Thomas Matelich (sosedada_at_[hidden])
Date: 2000-04-07 00:24:30

Todd Greer wrote:

> Thomas Matelich tmatelich_at_[hidden] writes:
>
> > This probably applies to all of the smart pointers, I just haven't
> used
> > them.  My problem is that I'm replacing some dumb pointers with
> > shared_ptr and now, I can't use forward references in my headers.
> Well,
> > I can as long as every class used with shared_ptrs is included in
> every
> > C file that includes the shared_ptr, in which case I might as will
> > include the header rather than forward declare.
> >
> > The error involves deletion of incomplete type.  Oops just noticed
> that
> > its a warning.  In any case, I would like to avoid the warning.
> What
> > have other people done with regards to this?
>
> Define your dtor out-of-line in the C file, where the type is
> complete.  An empty dtor is fine.  This will cause the dtor of the
> smart pointer to be instantiated there, so it will see the complete
> type.  This will be necessary for any normal variety of smart
> pointer--some will need copying to be defined out-of-line also.
>
> --
> Todd Greer      tgreer_at_[hidden]

Greg Colvin's little bump upside the head forced me to figure out what
you meant, rather than jump to conclusions.  I lazily left it with the
includes.  However, today I ran into this again, and verified that my
destructor did exist and was in the C file, and I still get the error!
Perhaps it is a MSVC problem?  Can anyone confirm or deny this?

--
Thomas O Matelich
Senior Software Designer
Zetec, Inc.
sosedada_at_[hidden]
tmatelich_at_[hidden]