Re: [Haskell-cafe] Redefining Disjunction
PR Stanley <[EMAIL PROTECTED]> writes: > Hi > Can you think of a fourth way of redefining disjunct using pattern matching? > vee :: Bool -> Bool -> Bool > vee _ True = True > vee True _ = True > vee _ _ = False In the same spirit: f False False = False f _ _ = True ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
RE: [Haskell-cafe] Redefining Disjunction
> [mailto:[EMAIL PROTECTED] On Behalf Of PR Stanley > > Hi > Can you think of a fourth way of redefining disjunct using > pattern matching? > vee :: Bool -> Bool -> Bool > vee _ True = True > vee True _ = True > vee _ _ = False How many ways do you want? I think this is correct, and is only strict in the first arg: v :: Bool -> Bool -> Bool v True _ = True v False b = b Alistair * Confidentiality Note: The information contained in this message, and any attachments, may contain confidential and/or privileged material. It is intended solely for the person(s) or entity to which it is addressed. Any review, retransmission, dissemination, or taking of any action in reliance upon this information by persons or entities other than the intended recipient(s) is prohibited. If you received this in error, please contact the sender and delete the material from any computer. * ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Redefining Disjunction
On Wed, Jun 13, 2007 at 02:37:37PM +0100, PR Stanley wrote: > Hi > Can you think of a fourth way of redefining disjunct using pattern matching? > vee :: Bool -> Bool -> Bool > vee _ True = True > vee True _ = True > vee _ _ = False > > ve :: Bool -> Bool -> Bool > ve True True = True > ve True False = True > ve False True = True > ve False False = False > > v :: Bool -> Bool -> Bool > v True b = True > v b True = True > v b False = b > v False b = b > Most obvious is v :: Bool->Bool->Bool v False False = False v _ _ = True ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
