[Haskell-cafe] Order of Declaration

[Stefan O'Rear]

On Sat, Sep 29, 2007 at 12:05:01PM -0500, Derek Elkins wrote:
> On Sat, 2007-09-29 at 17:58 +0100, PR Stanley wrote:
> > 	Hi
> > in C type languages a function must be declared before its application.
> > Would I be right in thinking that this isn't the case in Functional languages?
> > For example:
> > transmit :: String -> String
> > transmit = decode . channel . encode
> > channel :: [[Int]] -> [[Int]]
> > channel = id
> 
> It's not the case in Haskell.  Not only is the above valid, but so is:
> 
> transmit = decode . channel . encode
> 
> channel :: [[Int]] -> [[Int]]
> 
> transmit :: String -> String 
> 
> channel = id

It is, however, the case in other functional languages like ML.
Declaration-before-use, as a design decision, is independant of
functionality.

Stefan
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