Member predicate Class :: getDerivation

Gets class derivation number index of this class/struct, for example the public B is derivation 1 in the following code:

class D : public A, public B, public C {
  ...
};


                            
                                
                                    ClassDerivation
                                
                                 
                            
                            
                                getDerivation
                            
                            
                                (
                                
                                    
                                        int
                                    
                                     
                                    index
                                
                                )