C++ POOL — DAY 10

Giving meaning to operators on your own objects, and laying down the first abstractions.

Two powerful ideas in one day. First, you can define what « adding » or « printing » an object you created yourself means. Second, you can describe a category of objects without providing any implementation — a weapon, an enemy — and let each concrete case fill in the blanks.

Operator overloading (including the output stream) then abstract classes with pure virtual methods, over a universe of weapons and enemies.