[Haskell-cafe] ByteString in patterns

[Manlio Perillo]

Don Stewart ha scritto:
> manlio_perillo:
>> Hi.
>>
>> Using normal String type I can define a pattern like:
>>
>>> let foo "baz" = 777
>>> foo "baz"
>> 777
>>
>>
>> But if I want to use ByteString, what should I do?
>> This seems impossible, since ByteString data constructor is not available.
> 
> -XOverloadedStrings
> 

Perfect, thanks.

Is this supported by other Haskell implementations, or planned for Haskell'?


Manlio