@KernelPanic,
Something is lost in translation. It would help to show code and not screen shots. Also it would help if you quit assuming we can read German.
Also while QB64 tries to be as compatible as possible to old QB's there are places where it is not. And default pass by reference is one of those areas, so don't quote old QB reference (which did pass by value as default), which is out-of-date.
Quote from current QB64 Wiki where you are finding discrepancy.
Something is lost in translation. It would help to show code and not screen shots. Also it would help if you quit assuming we can read German.
Also while QB64 tries to be as compatible as possible to old QB's there are places where it is not. And default pass by reference is one of those areas, so don't quote old QB reference (which did pass by value as default), which is out-of-date.
Quote from current QB64 Wiki where you are finding discrepancy.
b = b + ...