Re: smobs

[tomas]

On Tue, May 13, 2003 at 07:51:19PM +0200, Marius Vollmer wrote:
> "Dr. Peter Ivanyi" <address@hidden> writes:
> 
> > For example is this correct:
> > 
> > static scm_t_bits data_tag = 0;
> > 
> > static SCM make_my_data(SCM scm_data)
> > {
> >   int tt;
> > 
> >   SCM_ASSERT(SCM_INUM(scm_data), ...);
> > 
> >   tt = SCM_INUM(scm_data);
> >   
> >   SCM_RETURN_NEWSMOB(data_tag, tt);
> > }
> 
[...]
> I don't understand.  "tt" is a totally ordinary local C variable that
> behaves like any other local C variable.

Ah, I think I get it. Since tt is `just an int', its *content*
gets copied into the smob, not a ref to tt. Thus, no problem if
`tt disappears' as the stack is popped. Does this help, Peter?

Regards
-- tomas