Hi, I'm trying to call class members which are not used within the original source code and therefore are not declared within bitcode. An example would be calling std::vector<T>::size(). Right now I'm using a helper function, e.g. int f(vector<int> &v) { return (int)v.size(); } However, this solution is not as elegant as I would like it to have, mostly due to the fact that with changing T i have to provide additional code. So I wondered whether it is possible to declare a function and recompile the resulting bitcode again with the result that the correct function of the object gets called. From what I can see from [1] Kenneth Uildriks mentions JIT and also that a declaration can be included. But I'm unable to link this proposed solution to my actual problem. Thanks, Sebastian [1]: How can we call an object's virtual function inside IR? http://groups.google.com/group/llvm-dev/browse_thread/thread/426dc51e1edb33e0/2c238292d16512ff?lnk=gst&q=call+object#2c238292d16512ff -- Mit freundlichen Grüßen / Kind regards Sebastian Dreßler Zuse Institute Berlin (ZIB) Takustraße 7 D-14195 Berlin-Dahlem Germany dressler at zib.de Phone: +49 30 84185-261 http://www.zib.de/