C++ Tutorial => Pointers to members

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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

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