C++: Interfaces

Given that everytbody knows what a class is, differentiate between two different inheritance techniques,

• Implementation inheritance (generally frowned upon in C++)

• Interface implementation. This is an unnecessarily complex topic.

  • Pure virtual, and runtime method dispatch

  • Why the hell does the destructor have to be virtual?

  • A lot more opportunities to shoot oneself in the foot

Put the interface thinking in relation to the different hardware sensor devices - thermometers, just implemented differently.