Hi Paul. I agree that it can be proved mathematically to be correct and that some of the concepts can be applied in more conventional languages however I can't see it ever being used really that widely in industry. I certainly can't see it being used in a military context. Come on, because of security and safety we're restricted to using visual studio 6 as the .net environment failed the MOD's safety and security validation process. You've just got to love that one! Out of interest is there a decent IDE for Haskell yet, something with a window and proper build and debugging tools. Cheers. Nick. -----Original Message----- From: dmusofties-bounce@xxxxxxxxxxxxx [mailto:dmusofties-bounce@xxxxxxxxxxxxx] On Behalf Of Paul Kennerley Sent: 20 July 2006 12:05 To: dmusofties@xxxxxxxxxxxxx Subject: [dmusofties] Re: Anyone remember FP and Haskell? Interesting comment, and its good to see a techincal debate starting. I have no wish to start a flame war, but I would like to point out that one of the advantages of using a Haskell is that programs can be proven to be mathematically correct (something not possible with OO, as there hasnt been a calculus developed to do it). However, if anyone is really hung up about lazy evaluation and code coverage, then there are FP langauges with eager evaluation. Eager Haskell is one of them. I do admit that FP is a difficult concept to get your head around, especially if you have been used to imperative langauges (I really didnt get it the first time around, and I'm not sure that I understand it 100% now) and this may prevent (or slow down) the use of FP in industry, but FP ideas are creeping into modern languages such as Python. Does anyone else have any views on FP? Paul --- Nick.Adamson@xxxxxxxxxxxxxxxxxxxxxx wrote: > Paul! 3 words, "GET OUT MORE!" > > I'll never know how Jenny managed to get most of us > to scrape through > that exam! > > I can't see FP really ever being used in industry. > There's know way it > would get safety rated. > All the stuff we do which goes out has a safety > level and to get a SIL > level you have to do code coverage analysis as part > of the test results. > I don't know how you could do code coverage with FP > as the code is only > ever run when it's needed. > > Cheers. > Nick. > > > -----Original Message----- > From: dmusofties-bounce@xxxxxxxxxxxxx > [mailto:dmusofties-bounce@xxxxxxxxxxxxx] On Behalf > Of Paul Kennerley > Sent: 20 July 2006 09:39 > To: dmusofties@xxxxxxxxxxxxx > Subject: [dmusofties] Anyone remember FP and > Haskell? > > Does anyone remember taking Dave Smallwoods Haskell > module? No, I didnt think anyone would forget, Im > sure > that most people from se00 still have the mental > scars > ;-) > > This might come as a bit of a surprise (and no, I > havent been taking mind altering drugs), but I > actually started doing a bit of Haskell last night. > I > found an article on OSNews.com, and after reading > though that I downloaded Hugs and started to work > though the following tutorial: > http://www.isi.edu/~hdaume/htut/tutorial.pdf > > Yes, I know that during the 2nd year I hated FP as > much as the next person (with the odd exception) but > after looking at it again last night I've started to > change my mind and I reckon that FP has some very > good > ideas (no side effects, and once only assignment > etc). > > I've also noticed that FP has been mentioned on > quite > a few blogs (the register, osnews to name a few). > Maybe we will see FP being used more and more in > industry, if so it might be worth taking a 2nd > look > at it. > > Paul > > > > > > ___________________________________________________________ > > All New Yahoo! 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