OK, now I will use 'rem' vs. 'mod' Using trial division for determining range of primes, code below works, except for the ending message. Other 'clean' programs regarding lists have worked perfectly. Not sure what to make of the message. Any suggestions? Thanks. /* clean 497>./primes [2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97Run time error, rule 'prmFilter' in module 'primes' does not match Execution: 0.00 Garbage collection: 0.00 Total: 0.00 clean 497> */ module primes import StdEnv, StdInt, StdList, StdClass
prmFilter :: Int [Int] -> [Int] prmFilter prime [n:rst] | n rem prime == 0 = prmFilter prime rst /* use rem instead of mod */ | otherwise = [n:prmFilter prime rst] primes :: [Int] -> [Int] primes [prime:rst] = [prime:primes (prmFilter prime rst)] Start :: [Int] Start = primes [2..100] On Mon, Jul 7, 2014 at 3:04 PM, Loïc Maury <[email protected]> wrote: > Hello Luke and Community, > > same error, I'am on Windows 7 with clean ide. > > It seem, that mod is declared on StdOverloaded : > > // Additional functions for integer arithmetic: > instance mod Int // arg1 modulo arg2 > instance rem Int // remainder after integer division > instance gcd Int // Greatest common divider > > There are another file StdInt, we have rem and gcd : > // Additional functions for integer arithmetic: > > instance rem Int > where > (rem) a b > = code inline { > remI > } > > instance gcd Int > where > gcd x y = gcdnat (abs x) (abs y) > where > gcdnat x 0 = x > gcdnat x y = gcdnat y (x rem y) > > but it seem, unfortunately no mod ? > > Maybe a professional of clean can answer better than I do. > > Best > > Loic > > > On Mon, Jul 7, 2014 at 5:53 PM, Luke Immes <[email protected]> wrote: > >> Documentation makes reference to required modules, but 'mod' is still >> not working. >> >> Any suggestions? Thanks. >> >> >> clean 496>cat mymod.icl >> >> module mymod >> >> import StdEnv, StdInt, StdClass >> >> Start :: [Int] >> >> Start = [x*x \\ x <- [1..10] | x mod 2 == 0] >> >> --------- >> >> clean 495>make mymod >> >> clm -h 20m mymod -o mymod >> >> Compiling mymod >> >> Overloading error [mymod.icl,4,c;4;14]: "mod" no instance available of >> type Int >> >> make: *** [mymod] Error 1 >> >> _______________________________________________ >> clean-list mailing list >> [email protected] >> http://mailman.science.ru.nl/mailman/listinfo/clean-list >> >> >
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