Re: Problem with Flex/Bison and C/C++

Christoph asked:
> So my question is if there is a simple way to have all the tokens as
> strings and integers and have nonterminals with more complicated C++
> data types.


Yes, put only pointers in your union. You can then use a "void *" (or
char *) pointer in your lexer and that will work in C. There are
other reasons why using only pointers in your union is a good
solution. However, let me just say that your union is to help hook you
resulting AST together, and as such you want to have a pointer to the
object being linked and not a copy of the object being linked.


There are also versions of "lex" that generate C++. I would recommend
finding one of them for the long run.


Hope this helps,
-Chris


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