Pointers to class / struct members

Syntax

Assuming a class named Class:

type *ptr = &Class::member; // Point to static members only
type Class::*ptr = &Class::member; // Point to non-static Class members

For pointers to non-static class members, given the following two definitions:

Class instance;

Class *p = &instance;

Pointers to Class member variables

ptr = &Class::i; // Point to variable i within every Class
instance.*ptr = 1; // Access instance’s i
p->*ptr = 1; // Access p’s i

Pointers to Class member functions

ptr = &Class::F; // Point to function ‘F’ within every Class
(instance.*ptr)(5); // Call instance’s F
(p->*ptr)(6); // Call p’s F

Pointers to member variables

Pointers to member functions

Pointers to static member variables

Pointers to static member functions

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