如果一个类将要基于指针，那么内部对象是否必须基于指针？

Question

I have a class A and class B. I can have a private or public class_B object inside class A. (myclassB) Ok, I create my class_A objects on the heap:

classA = new classA();
classA->myclassB.property =1;  // in case myclassB is public.
classA->myclassB.function_x(33); // in case myclassB is public.

First ... How can I call myclassB ? stacky-clas ? fixed_class ? Second... Am I to have any problem to do this ? Is best ? It does not matter? Thanks

Answer 1

No. If I have a class that internally has a normal object (no pointer), than it doesn't matter whether the outer object is a pointer or not, the inner object always gets accessed normally.

A stack_a, *heap_a;
heap_a = new A();

/* Inner object always uses normal access */
stack_a.b.test()
heap_a->b.test()

The opposite is true too, if a class internally uses a pointer to an object then it doesn't matter whether the outer object is a pointer or not, the inner object always uses pointer access.