On Mon, Nov 19, 2012 at 2:17 PM, Rambo <hunanlwm at sina.cn> wrote: > Thanks for your respose.You seem the type of return for getLHS() is Expr > *,How can you get A form A[4].As far as I know ,I > cann't get a std::string form such type as Expr *. Ah, I'm afraid I don't know that. Hopefully someone else will be along with an answer. Tim.