what's polymorphic type in C++?

Question

I found in one article saying \"static_cast is used for non-polymorphic type casting and dynamic_cast is used for polymorphic type casting\". I understand that int and double ar

Answer 1

I think the full phrase is "polymorphic type casting". You are right that static_cast works on types that are not related by inheritance (double - int, etc) and the others answers point out how the casts work.

I don't think the statement implied the existence of a mythical polymorphic type though - just that static_cast also works on unrelated types. The statement was a little confusing though and it's good to clarify.