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Re: linking error
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Re: linking error


  • Subject: Re: linking error
  • From: WT <email@hidden>
  • Date: Thu, 25 Jun 2009 11:50:23 +0200

On Jun 25, 2009, at 11:46 AM, WT wrote:

On Jun 25, 2009, at 11:38 AM, Dave Keck wrote:

The link error is pretty self-explanatory. To solve issues like this,
I'd first change the header like so:

  extern NSString *const someString;

and create a SharedDefs.m:

  NSString *const someString = @"halla";

This way, any object file can reference someString, but only one
object file will actually define it - SharedDefs.m. And voila, link
errors be gone.

David

Hi David,

I understand the message, and I thought of the solution you suggested. What I'm puzzled with is that I thought #import only imports once.

Wagner

Duh... never mind. The header *is* being imported only once, per .m file. That's not the problem. The problem is that


NSString* const someString = @"foo";

creates two strings with the same reference name, one for AppDelegate and one for SomeClass. It wasn't until I typed the message above that I realized my mistake.

I think I should go have lunch now. My brain is lacking some food....

Wagner
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References: 
 >linking error (From: WT <email@hidden>)
 >Re: linking error (From: Dave Keck <email@hidden>)
 >Re: linking error (From: WT <email@hidden>)

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