Re: [Haskell-cafe] read "2" in a "void" context?

GHCi enables -XExtendedDefaultRules, which cause read "2" to default to (). On 5/27/2016 8:28 PM, Erik Rantapaa wrote:

Hi fellow Haskellers!

If I bring up ghci and evaluate `read 2` I get the error "Prelude.read: no parse"

GHCi, version 7.10.2: http://www.haskell.org/ghc/ :? for help Prelude> read "2" *** Exception: Prelude.read: no parse

Exactly how is this message coming about? I understand that `read` needs a return type in order to determine which type class instance to run. So, in this case, which type is `read` being asked to return?

Thanks, Erik

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