Re: yylval corruption solved

[wim delvaux]

On Monday 05 May 2003 08:49, Akim Demaille wrote:
>  wim> The problem is that yyval (it was yyval and not yylval) gets
>  wim> reused in the parser code.  Value is copied after each 'action'
>  wim> to yyvsp.
>
>  wim> In my Actions block in the 'y' syntax I stored the pointer to
>  wim> the $<>$ which is the pointer to yyval and hence is overwritten.
>  wim> I should have stored the pointer to the yyvsp but that is not
>  wim> accessible easily.,
>
> I don't know what you are doing, but it seems to me that you get too
> internal with Bison, which is not a good thing.  Unless I
> misunderstood your problem, of course.

Thanx for the reply and the concern
The problem was a bug in my program I thought that I could use a pointer to a 
$<>$ value somewhere in an action but apparently that refers to a variable 
that gets changed after each step in the bison parser.

I have found the bug.

W