Diamond inheritance (C++)

Question

I know that having diamond inheritance is considered bad practice. However, I have 2 cases in which I feel that diamond inheritance could fit very nicely. I want to ask, wou

Answer 1

"Diamonds" in the inheritance hierarchy of interfaces is quite safe - it's inheritance of code that get's you into hot water.

To get code reuse, I advise you to consider mixins (google for C++ Mixins if you are unfamiliar with the tequnique). When using mixins you feel like you can "go shopping" for the code snippets that you need to implement you class without using multiple inheritance of stateful classes.

So, the pattern is - multiple inheritance of interfaces and a single chain of mixins (giving you code reuse) to help implement the concrete class.

Hope that helps!