 | A function f get access to the private state of both class A and B. |
| Lecture 4 - Slide 33 : 40 |
A function needs access to private variables in two classes
| A function f get access to the private state of both class A and B. |
Matrix Vector multiplication is a compelling, practical example of this approach, see §19.4 in The C++ Prog. Lang. (4. edition)