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I'm attempting to pass a string argument into the function randomForest but I get an error: state <- paste(list("fruit ~", "apples+oranges+blueberries", "data=fruits.data, mtry=2, do.trace=100, na.action=na.omit, keep.forest=TRUE"), sep= " ", collapse="") model.rf <- randomForest(state) Error in if (n==0) stop ("data(x) has 0

...into something like: Translate the goto inso something like throw appropriate_static_link->LL; where appropriate static link is whatever is needed to access the proper variable in the enclosing scope. Around every call *from* any function that contains a Label, we have code like: try( the_call } catch(Label e) { if(e.level == LL.level) goto e.label; else throw e; } Of course this coding requires that you can take addresses of labels and jump to them later in C++, which as far as I can recall is not one of its language features. But LLVM is a lower-level language, so I...

The languages I'm faced with compiling in the near future have nonlocal go to statements and nested procedures. A procedure gets implemented as a structure containing its entry point and an environment pointer. It is easy enough to call its entry point and pass the environment pointer as an extra argument (rather like the pointer to this or self in object-oriented code). It's no

...t, db); + if (t1 == last || t1 == t) return first; - db.names.back().first.append(")"); - first = t; + t = t1; } + if (db.names.size() < args_begin) + return first; + ++t; + call_expr* the_call = db.template make<call_expr>( + callee, db.names.size() - args_begin, + db.template make_array<node*>( + db.names.begin() + (long)args_begin, + db.names.end())); + db.names.erase(db.names.begin() + (long)args_begin, db.names.e...