C++17 Quick Syntax Reference: A Pocket Guide to the Language, APIs and Library

© Mikael Olsson 2018

Mikael OlssonC++17 Quick Syntax Referencehttps://doi.org/10.1007/978-1-4842-3600-0_19

19. Structs and Unions

Mikael Olsson¹ 

(1)

Hammarland, Finland

 

Structs

A struct in C++ is equivalent to a class, except that members of a struct default to public access, instead of private access as in classes. By convention, structs are used instead of classes to represent simple data structures that mainly contain public fields.

struct Point

{

  int x, y; // public

};

class Point

{

  int x, y; // private

};

Struct Initialization

To declare objects of a struct, you use the normal declaration syntax .

Point p, q; // object declarations

Another alternative syntax often used with structs is to declare the objects when the struct is defined by placing ...