[Haskell-cafe] Re: Maybe to Either -- is there a better way?

Tom Davies tgdav...@gmail.com wrote: I find it convenient sometimes to convert a Maybe value to an Either thus (excuse the syntax, it's CAL, not Haskell): maybeToEither :: a - Maybe b - Either a b; maybeToEither errorValue = maybe (Left errorValue) (\x - Right x); As a side note, this is

Re: [Haskell-cafe] Re: Maybe to Either -- is there a better way?

On 03/08/2010, at 10:09 PM, Ertugrul Soeylemez wrote: Tom Davies tgdav...@gmail.com wrote: I find it convenient sometimes to convert a Maybe value to an Either thus (excuse the syntax, it's CAL, not Haskell): maybeToEither :: a - Maybe b - Either a b; maybeToEither errorValue = maybe