How to add multiple inherited classes to a CPP Vector [duplicate]

This question already has an answer here: Store derived class objects in base class variables 4 answers I have a base class with 3 different inherited classes. I want to add all the inherited classes to a vector and at a later point when I need to iterate through the inherited classes and call functions in them. The order each inherited class is added to the vector is random, based on a file input from the user. Here is what I have: static std::vector<Base> List; Inh1 inh1; Inh2 inh2; Inh3 inh3; Base &intf = inh1; List.push_back(intf); ... similarly for the other 2 When I read them: for (long index=0; index<(long)List.size(); ++index) { if (!(List.at(index).Works())) { printf ("Works"); } ... } The .Works() calls the virtual method inside the base class and not the inh1 class. I'm not sure how to make it work. I can't static/dynamic cast it when I want to access it because I don't know which one it is I'm accessing....Any ideas? Thanks