Re: Can't make a stack from a continuation

[Neil Jerram]

Marius Vollmer wrote:
> Marius Vollmer <address@hidden> writes:
>
>
> > Neil Jerram <address@hidden> writes:
> >
> >
> > > And one more problem ... the same problem exists in CVS head, but a
> > > similar patch doesn't fix it ... still investigating.
> >
> > I'm looking into this as well, now.  The fix you did for 1.6 looks
> > good, although I don't understand it completely yet.  I will try to
> > come up with my own patch to CVS head.
>
>
> Here it is.  I have already applied it to CVS.  I think a similar
> scheme can be used for 1.6, too: i.e., move the offset calculation
> into scm_make_continuation.
>
> Neil, do you want to fix 1.6 yourself?
>
> [patch]

This change (calculating and storing the offset in 
scm_make_continuation) makes sense, but I'd like also to understand 
where the bug was in my version (using offset = (SCM_CONTREGS (stack) -> 
stack) - SCM_BASE (stack);) and why my code worked in 1.6 but not in 
head.  Would you mind explaining?

Thanks,
        Neil

PS. Merry Christmas!