Re: usage $0 (was warning: unused value: $3)

[Hans Aberg]

On 26 Oct 2006, at 16:49, address@hidden wrote:

> > > > be guaranteed, in view of that Bison is switching to other types of
> > > > containers than an underlying array.
> > > but should the container still support the $0 notation ?
> that did not come out right, should have read
> ...but surely the new containers will have to support the $0  
> notation ?

The warning stuff tricked me into thinking there was something funny  
with $0... :-)

> > My memory is hazy, so you will have to wait for the developers with
> > the full story.
> ok, I will wait.

Just go ahead. There should be no problem within a single action.  
Between actions, the stack may be relocated though, but then the  
value has been changed. Or so I think.

But Joel Denny is right: one should be able to do this without mid- 
rule actions. Probably makes no practical difference, though.

> btw, is help-bison the right list for this kind of discussions ?

Yes. If it gets to featuritis, one may move to Bug-Bison. Actual code  
goes to Bison-Patches.

  Hans Aberg