Folks, We're trying to do a "Haskell vs anything-else (preferably C)" study. We're interested both in their size and structure, and in their performance. We intend to make quite detailed comparative measurements of their performance. Do you have programs we could have a look at? We are most interested in "real" programs that you actually used for Real Work. The ideal would be programs that you "prototyped" in Haskell, then rewrote into C (or the other way around :-). The functional programs can be anything Haskell-ish; the "anything else" can be anything; the "realness" can be limited; the `match' between the two versions can be tenuous... We'll look at anything at this point! What's in it for you? We hope to learn more about why functional programs behave as they do, so we can give you a better Glasgow Haskell compiler. Many thanks to those who have supplied us with Haskell-program fodder over the past few years. You get partial credit for GHC's ongoing improvements. Simon PS. We already have, or know about: - the Simple code - the Salishan problems - the Cowichan problems - "pseudoknot"