I'm criticizing the implementation. I have no complaints about the language (other than arrays starting at 1). I'm just salty because other people have said th

I'm criticizing the implementation. I have no complaints about the language (other than arrays starting at 1). I'm just salty because other people have said the implementation was really clean C, so I decided to spend a week porting it to C#, and I gave up. I could not figure out how closures were actually implemented, and I spent a day trying to understand it.