Re: %left is not working

[Hans Aberg]

[Please keep the cc to the list so that others may follow.]

On 3 Aug 2010, at 22:26, Sasan Forghani wrote:

> Thank you for the response.  However, I don't understand your second  
> statement about properly allocating.  In the Bison script, I have  
> IDENTIFIER specified as type <blIdentifier>.  And in the ( expr )  
> production, expr should have its value allocated by the IDENTIFIER  
> production further down.  And that is getting allocated because I  
> also have a strcpy at the end of the IDENTIFIER production.  Can you  
> please explain further.  Thanks.

A common error is not allocating the buffers correctly. If the lexer  
is generated by Flex, it just gives a pointer to the identified text  
which must be copied over to a newly created buffer, before passed to  
the parser.

SImilarly, in the parser, the $$ value must be allocated a buffer if  
it is not just a point to a $k value.

I could see in your code how you are doing. So just mentioned it just  
in case.