The story is I'm acutally making a FLHook plugin.

In the plugin, I have a group of class (Let's say, derived class) which shared same Base class. And a Manager class used to control and send event one by one to those derived classes with method call.

Code like this:
https://gist.github.com/raincious/6b786a9c7f9e4fa6c0b3

My question is:

1, Can it be done? Notice I each derived class can have different size and method, And the Base class may have unvirtual methods.
2, When I try to delete, will be memory which assigned to derived classes can be completely release (memory size is different to Base class)?

I'm new to C++, so new .... that I can't know if I truly need a shared_ptr or not ....

Please help, Thank you!

OK, now I have virtual destructor and pre increment iterator (I found this after readed your reply: http://stackoverflow.com/questions/13 ... een-iterator-and-iterator).

So I still have Undefined Behaviour problems even after 'correct' delete? How to solve that problem? Or I can only go with smart pointer (The shared_ptr)?

OK, I will carefully go with raw pointer and "virtual destructor" every upper classes too.

Thank you Huor.

Wow, I learned a lot today LOL.

Yeah, I think unique_ptr is better since I don't need copy them.

And looks I also don't need to care about class slicing because memory will be erased by internal magic stuffs itself. (Is I'm right?)

OK, I will change code and go with smart pointer.

Thank you FF.