[Haskell-cafe] Shortening if-then-else

[Tomasz Zielonka]

On Tue, Nov 22, 2005 at 10:15:15PM +0300, Bulat Ziganshin wrote:
> Tuesday, November 22, 2005, 9:17:57 PM, you wrote:
> 
> MN> return $ guard (cmdType cmd /= CmdSitError Serv) >> return seat_num
> 
> return $ when (cmdType cmd /= CmdSitError Serv) (return seat_num)
> 
> must also work :)

But it won't.
I have made this mistake too in the past ;-)

Best regards
Tomasz