bug#5570: automatic cache validation

[Paul Pogonyshev]

Jan Djärv wrote:
> Alan Mackenzie skrev:
> >>> Does
> >>>    M-x (c-state-cache-init)
> >>> fix it?
> > 
> > 
> >> No, it does not.
> > 
> 
> I just got the problem again, while editing gtkutil.c in Emacs.  There
> M-: (c-state-cache-init) did indeed fix the problem.
> 
> So it sometimes help.  I guess this only adds to the confusion...

I guess that's because there are several similar bugs.  At the rate
fixing goes (or rather doesn't go) I think I'll compile and use an old
Emacs without indentation bugs again.

Paul


P.S.  By the way: maybe this change did fix the original bug, but it
didn't improve overall indentation problems in CC modes noticeably.

2010-03-24  Alan Mackenzie  <acm@muc.de>

        * progmodes/cc-engine.el (c-remove-stale-state-cache):
        Fix off-by-one error.  Fixes bug #5747.