[Haskell-beginners] strict evaluation and MIDI playback

[Dennis Raddle]

Never mind, I realized that I use the pragma incorrectly -- it wasn't at
the top of the module.

On Fri, Nov 6, 2015 at 3:26 PM, Dennis Raddle <dennis.raddle at gmail.com>
wrote:

>
> ​Thanks! I have a problem though. I read about automatic derivation of an
> NFData instance. I have GHC version 7.10.2. I tried the code below, but I
> get
>
> Can't make a derived instance of Generic RawMidiEvent
>   You need DeriveGeneric to derive an instance of this class.
> In the data declaration for 'RawMidiEvent'
>
>
> {-# LANGUAGE DeriveGeneric, DeriveAnyClass #-}
>
> import GHC.Generics (Generic)
> import Control.DeepSeq
>
> data RawMidiEvent = RawMidiEvent
>   { rmeStream :: Int
>   , rmeChan :: Int
>   , rmeStatus :: Int
>   , rmeData1 :: Int
>   , rmeData2 :: Int
>   }
>   deriving (Show,Eq,Generic,NFData)
>
>
>
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