User defined types

Lecture 1 - Slide 24 : 34

User defined types

Enumeration types
- A thin layer on top of integers
- Enumeration constants are not available in the executing program
  - Mapping from integers to symbolic names in switch statements
- enum class: strongly typed and scoped (C++11)

The C++ Prog. Lang. (4. edition): enum class. Page 50

Effective Modern C++: Prefer scoped enums to unscoped enums. Item 10

Structs
- An aggregate type
- A value type in C, as well as in C++
Typedef
- A type alias facility
- Good for complicated and convoluted types, such as function types

The C++ Prog. Lang. (4. edition): Type aliases. Page 167

C++ expands heavily on the user defined types in C

In C++11 type aliases - as well as template aliases - are typically expressed with using instead of typedef

Effective Modern C++: Prefer alias declarations to typedefs. Item 9