Question

This is an interview question:
how can we store the objects of let’s say 3 different classes which are totally independent of each other.

My answer was:
create an array which stores all void pointers.
like :

void *array[];

and store the pointers of all the objects.the array elements can be many.
but for retrieving the elements,i said we can use the dynamic cast or the static cast!
this i think is the wrong answer.i think dynamic cast and static cast are supposed to be used among the classes which are dependent.
please correct me if i am wrong.

if dynamic cast and static cast doesn’t work.May be we can use reinterpret cast.

but is this the correct way to do this task?

Answer 1

Why are you trying to make this so complicated?

struct T {
   T1 obj1;
   T2 obj2;
   T3 obj3;
};

If you instead mean that you have an array of objects, and each element can be of any of three distinct, unrelated types, then it’s a silly interview question because it’s a silly thing to do.

(Yes, you would consider reinterpret_cast if forced to employ this approach by limited job opportunities and a pressing need to consume food.)