[Haskell-cafe] Re: Basic problem in Haskell language design?

[John Goerzen]

Stuart Cook wrote:
> On Mon, Mar 2, 2009 at 12:35 AM, Achim Schneider <barsoap at web.de> wrote:
>> -Wall? The number of -W options enabled should scale (at least)
>> linearly with code size.
> 
> To make this a little more clear:
> 
> You should probably be using the -Wall compiler option, which will
> produce a message for code constructs that the compiler finds
> suspicious.
> 
> In your case you should see three relevant warnings:
> 
> 1. "moverFromWord8s" is defined but not used
> 2. "moverFromWord8s" has no explicit type signature
> 3. "movesFromWord8s" has a non-exhaustive pattern match

And that warning #3 is the one that you really should care about.  It'll
save you.

-- John

> 
> 
> Stuart
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