Michael Litchard wrote:
I'm finding that in more than one instance I pass a data structure to a function, simply so that I can pass it to it's helper function. It bugs me that I'm passing a value that isn't being used directly. This seems wrong. Example: I have a "data URLSequence" that contains a way to calculate the ip address of a URL. This gets passed to a helper function that generates a particular URL, which then populates the URLSequence. Is there a standard practice to avoid what I am talking about? Or is this normal and I should accept it?
An old blog post by Duncan Coutts describes how to eliminate some parameter passing with higher-order functions (essentially continuations): http://www.well-typed.com/blog/10 Best regards, Heinrich Apfelmus -- http://apfelmus.nfshost.com