Re: [Haskell-cafe] Shortening if-then-else

22 Nov 2005


      Arjan van IJzendoorn  writes:
...
...
Is there a shorter way to write the if-then-else part below?
       if (cmdType cmd) /= (CmdSitError Server)
          then return $ Just seat_num
          else return Nothing
return $ if cmdType cmd /= CmdSitError Serv
      then Just seat_num else Nothing
return $ guard (cmdType cmd /= CmdSitError Serv) >> return seat_num

-Matthias

-- 
Matthias Neubauer                                       |
Universität Freiburg, Institut für Informatik           | tel +49 761 203 8060
Georges-Köhler-Allee 79, 79110 Freiburg i. Br., Germany | fax +49 761 203 8052