[Haskell-cafe] How to convert number types.

[Brandon S. Allbery KF8NH]

On Dec 31, 2007, at 12:50 , L.Guo wrote:

> And what is the difference between fromIntegral and fromInteger ?

Integer is a specific single type:  unlimited-precision integers.
Integral is a typeclass which includes, among others:  Integer, Int  
(integers represented in machine words, so either 32 or 64 bits), the  
various Word* types defined in Data.Word (various fixed word sizes  
such as Word8, as distinct from the hardware-preferred one  
represented by Int), and the compatibility types defined in  
Foreign.C.Types.

-- 
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