Re: [Haskell-cafe] Showing Data.Ratio - different on GHC vs Hugs/Yhc

On Nov 16, 2007 2:12 PM, Neil Mitchell wrote:

Under Hugs and Yhc, showing a Ratio 1%2 gives "1 % 2". Under GHC showing 1%2 gives "1%2". Does the standard say anything about this? Is someone wrong? And how do Yhc/nhc/Hugs pass Bernouilli in the Nofib suite given that the output doesn't match?

Judging by the Read instance, the whitespace isn't considered significant. Prelude Data.Ratio> map read ["1%2", "1 % 2", " 1 % 2 "] :: [Rational] [1%2,1%2,1%2] -- Dave Menendez http://www.eyrie.org/~zednenem/