C++ CoreLesson 06 of 441 min read5 questions

Classes vs Structs

Only two real differences; the rest is convention.

Concept core idea Watch out easy to get wrong

Concept

Key concepts

Only two real language differences: (1) default access — struct public, class private; (2) default inheritance — struct public, class private.
Everything else is identical (both can have ctors, methods, virtuals, inheritance, templates).
template<class T>/template<typename T> allowed; template<struct T> is not.
Convention: struct = passive data bundles; class = encapsulated types with behavior/invariants.

Watch out

class default vs struct default

Members are private by default in a class, public by default in a struct (same for default inheritance mode).

5 questions on this lesson. Write your answers from memory, then compare them with the model answers side by side.