Avoid passing unnecessary dictionaries in Data.Complex

[Joachim Breitner]

Hi,

+1 

(stating the obvious)

Greetings,
Joachim

Am Samstag, den 15.03.2014, 00:16 -0400 schrieb Edward Kmett:
> We removed the data type context from Data.Complex some time ago.
> 
> 
> However, when we did so, we left the rest of the API in that module
> intact.
> 
> 
> Many of the accessors in that module (should) work with much more
> general types now!
> 
> 
> e.g. 
> 
> 
> realPart :: Complex a -> a
> 
> 
> instead of
> 
> 
> realPart :: RealFloat a => Complex a -> a
> 
> 
> I propose we stop passing around dictionaries we don't need to methods
> that don't use them.
> 
> 
> Concretely, I'm proposing we simplify the signatures of the following
> functions, which in the current API all unnecessarily take a RealFloat
> constraint that they don't use.
> 
> 
> realPart :: Complex a -> a
> imagPart :: Complex a -> a
> conjugate :: Num a => Complex a -> Complex a
> mkPolar   :: Floating a => a -> a -> Complex a
> cis       :: Floating a => a -> Complex a
> 
> 
> Discussion Period: 2 weeks
> 
> 
> -Edward Kmett
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> Libraries mailing list
> Libraries at haskell.org
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-- 
Joachim “nomeata” Breitner
  mail at joachim-breitner.de • http://www.joachim-breitner.de/
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  Debian Developer: nomeata at debian.org
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