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Re: FW: Where to include header files - relates to last question on variable scope


On Sun, 31 Oct 2004 16:18:17 +0100, Ole Voss <email@hidden> wrote:


This also means, that I have to include the header file wherever I need it?
That could mean that the same class has to be recompiled tens of times -
right?



The class implementation won't be recompiled, since that will reside
in the .m file. If you're putting the implementation in your header,
you're very, very confused.


You really shouldn't make it sound as if it was the most natural thing in the world. Afterall, I don't include my '.m' files anywhere either and they still get compiled - right?

So what's telling the compiler NOT to do it again? Is it the same program that tells the compiler to forget that I already compiled that class and forget that it exists unless I re-include it in the next implementation that I need it in?

Somehow this sounds awefully messy. Why would I want to tell the compiler again and again and again that a certain class exists? Why doesn't it just remember, that I have created this class and that I'd like to use it - afterall if I didn't want to use it, why did I include it in my project?


So what possibilities do I have to create global variables?



Declare them extern in a header, like you would in C.


Ok, that's worth a try.


Thanks,

Ole.
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References: 
 >FW: Where to include header files - relates to last question on variable scope (From: Ole Voss <email@hidden>)
 >Re: FW: Where to include header files - relates to last question on variable scope (From: Finlay Dobbie <email@hidden>)



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