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one for BASE class and one for DERIVED class

1. I think vtables are related to at least classes but not to objects.
2. There is 1 vtable for Base, since there are virtual functions in it.
3. There would be 1 vtable for Derived, if it owns some virtual functions which are not in Base.
There are no vtables but vptrs in these objects. Vptrs are pointing to the same vtable. Vtables live as static datas.

woww thankyou somuch

class base {
 virtual fooA(){
 //something
}

class Derived : class base{
    virtual fooA(){
        //something different
    }
 
    void foo1(){ .. }
    ...
    void foo10(){ ...}


}

}

then
in base class: vtble : 1
in derived class: vtble : 11 <= 1 + 10

every class will have its own virtual table. so only 1 virtual table.