[Haskell-beginners] How do I do inheritance in haskell?

[David Thomas]

Because confusing them is disastrous, so there is motivation to go to
extra lengths to keep them separate.  I don't have particular thoughts
on whether that motivation is sufficient in this case.

On Thu, May 8, 2014 at 7:24 AM, Daniel Trstenjak
<daniel.trstenjak at gmail.com> wrote:
>
> Hi Dan,
>
> On Thu, May 08, 2014 at 11:58:28AM +0300, Dan Serban wrote:
>> newtype AskVolume = AskVolume Double deriving (Show)
>> newtype AskPrice  = AskPrice  Double deriving (Show)
>>
>> newtype BidVolume = BidVolume Double deriving (Show)
>> newtype BidPrice  = BidPrice  Double deriving (Show)
>
> I think that's a bit over the top, because why shouldn't prices
> and volumes be interchangeable between Asks and Bids?
>
>
> Greetings,
> Daniel
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