What types are there beyond built-in and compound?

[fl]

Hi,
I read book: C++ primer. On Chapter 12, it says that: If aclass contains data members of build in or compund type, then the class should not rely on the synthesized default constructor, It snould define its own constructor to initialize these members.

My question is: What type can use synthesized constructor?
It mentions that class without constructor can use the synthesized constructor, but I doubt that whether class is a compound type?

What types are left after build-in, compound? I do not get the categories of the types yet.

Thanks,

 

[Victor Bazarov]

I read book: C++ primer. On Chapter 12, it says that: If aclass

contains data members of build in or compund type, then the class should
not rely on the synthesized default constructor, It snould define its
own constructor to initialize these members.

My question is: What type can use synthesized constructor?

I would venture a guess that a class with data members of types with
their own default c-tors (like a few std::string members, for instance)
could rely on their initialization by a synthesized c-tor.

It mentions that class without constructor can use the synthesized

constructor, but I doubt that whether class is a compound type?

What types are left after build-in, compound? I do not get the

categories of the types yet.

Classes, like standard containers.

V