I don't know how it works in BlitzMax, but in C passing by reference was/is considered the fastest way to "pass" variables.
Nowadays, I am not so sure that is the case, and with modern machines it doesn't really matter in most cases. But I suppose if speed is what you are after, you should pass by reference.
Nowadays, I am not so sure that is the case, and with modern machines it doesn't really matter in most cases. But I suppose if speed is what you are after, you should pass by reference.