[Haskell-cafe] Why is Bool no instance of Num and Bits?

[Brandon S. Allbery KF8NH]

On May 8, 2009, at 12:00 , Neil Brown wrote:
> If you change fromInteger in Num Bool to be fromInteger x = x /= 0,  
> then we could all start writing nasty C-like if-expressions...


I'd be strongly tempted to say

 > fromInteger = const False

-- 
brandon s. allbery [solaris,freebsd,perl,pugs,haskell] allbery at kf8nh.com
system administrator [openafs,heimdal,too many hats] allbery at ece.cmu.edu
electrical and computer engineering, carnegie mellon university    KF8NH


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