On 27 Dec 2006, at 20:41, Anouar LACHHEB wrote:
I want to use POSIX threads into my application which includes a
scanner and a parser. I read that in that case I have to use re-
entrant parser through %pure-parser directive.
I notice that I need to introduce some changes to my parser such as
my yylex proto -> int yylex (YYSTYPE *lvalp, YYLTYPE *llocp).
"yylval" is no longer useful, instead "lvalp" is used.
In my parser I used a %union directive, my question is: How can I
use this union instead of "YYSTYPE *lvalp".
I haven't used that combination, but %union just implements YYSTYPE
using a C/C++ 'union'. So from that point of view, I can see there
are no problems. The pointer type YYSTYPE* is perhaps there, because
C does not admit the C++ reference type YYSTYPE& in function arguments.
Hans Aberg
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