What is the benefit of using out/ref versus returning?

Question

I\'m making a game using XNA framework, so I use a lot functions that operate on vectors. (especially Vector2 (64bit struct)). What bothers me is that most of the methods ar

Answer 1

Another difference on top of the performance efficience mentioned by Servy is the ability to have multiple "return" values: instead of returning them the usual way, you list them as ref/var parameters.