14 Aug
2016
14 Aug
'16
5:01 p.m.
On 14 August 2016 at 16:00, Sean Leather
On Sun, Aug 14, 2016 at 9:48 PM, Tom wrote:
Is there a reason to not allow '.' as a separator for Rational's Read instance, so that both "1%2" and "0.5" can be read?
While it would make read :: String -> Rational more convenient, I'm not sure it would be a good idea to have read accept input that will never be produced by show :: Rational -> String.
This already happens everywhere, right? For example, if you have a Foo { bar :: Int, baz :: String } with the derived read instance, this works: read "Foo{bar=0x01, baz = \"h\101llo\"}" :: Foo Erik