[Haskell-cafe] Re: different code in different platforms

Ben Rudiak-Gould Benjamin.Rudiak-Gould at cl.cam.ac.uk
Fri Mar 17 10:25:26 EST 2006

Neil Mitchell wrote:
>> #ifdef __WIN32__
>>     (Windows code)
>> #else
>>     (Linux code)
>> #endif
> In Yhc, we use a runtime test to check between Windows and Linux.

I think the cleanest solution is to factor the OS-specific code into 
separate modules with OS-independent interfaces and names, and pull in the 
appropriate implementations at compile time by changing the module search 
path. That way you avoid the syntactic and semantic ugliness of cpp as well 
as most of the practical problems of a runtime test.

You can also use any two or all three of these techniques together.

-- Ben

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