Re: warning: unused value: $3

[Joel E. Denny]

On Thu, 26 Oct 2006, Hans Aberg wrote:

> On 26 Oct 2006, at 02:03, Joel E. Denny wrote:
> 
> > I don't know the plans for the C++ skeletons.  However, the Open Group
> > specifies that $0 and $-n should be supported by Yacc, so this should not
> > go away for the C skeletons at least.
> 
> If says that $0 should be supported, Bison is likely to support it for all
> skeletons. Perhaps I am mixing up the issue.
> 
> But what is $-n?

I mean: $-1, $-2, $-3, etc.  It just walks further back on the stack.