Re: how to enable trace in bison C++ parser

[Gvnaena Pura]

On Aug 23, 9:50 am, "Martin Jost" <Martin.J...@siemens.com> wrote:
> "Gvnaena Pura" <tianran.c...@gmail.com> schrieb im 
> Newsbeitrag1187804675.890164.195980@x40g2000prg.googlegroups.com">news:1187804675.890164.195980@x40g2000prg.googlegroups.com...
>
> > Hi,
>
> > I know for C parsers, one can simply #define YYDEBUG to be 1, and set
> > yydebug=1 somewhere, and then the parser will print trace information
> > at each step.  But how can I do this for C++ parser?  I
> > used ::set_debug_level and ::set_debug_stream, and there is no effect
> > at all.  How can I do this?  Thanks in advance.
>
> According to my notes, this should do the trick. But I had my share of
> trouble  here.
> Two notes:
> - Try option -t to bison
> - If you changed the prefix from yy to something else ('%name-prefix="..."'
> or '-p' to bison), you need to change it too on yydebug.

Yes, that was the problem.  Thanks!