Thread: DLLs in C++

Hi all,

The scenario is as follows.

Application "APP" loads a DLL "dll". Inside this "dll" there are functions which creates and object of type "SOME_CLASS". Now SOME_CLASS is a virtual class (this is provided to you). SO if you want to write your own DLL which can be loaded by APP you should subclass SOME_CLASS.

question: What if I disregard the virtual class SOME_CLASS and write my own class, called SOME_CLASS, which is not virtual. Will there be a problem when the APP tires to access methods of SOME_CLASS ?

in some_class.cpp

Code:

class SOME_CLASS
{
   SOME_CLASS(){};
   ~SOME_CLASS(){};
   void SOME_CLASS_FUNC(int){};
}

in main.cpp

Code:

extern "C"
{
     SOME_CLASS* create_some_class() { return new SOME_CLASS;}
}