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Re: Calling a Cocoa library from C
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Re: Calling a Cocoa library from C


  • Subject: Re: Calling a Cocoa library from C
  • From: Nathan Sims <email@hidden>
  • Date: Sat, 12 Nov 2011 10:45:58 -0800

On Nov 11, 2011, at 6:22 PM, Wim Lewis wrote:

> int get_float_data(float *result1, float *result2)
> {
> NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
> @try {
>   [objcCode call];
>   *result1 = [more stuff];
>   etc.;
> } @catch {
>   fprintf(stderr, "omg doomed!\n");
>   etc.;
> } @finally {
>   [pool drain];
> }
>
> return blahblah;
> }

Wow, I didn't realize how integrated C and Objc are, that you could employ Objc code from a C function. Kewl.

Okay, does this mean that an object instantiated by a C function has persistence across C function calls? In the example above you have:
    [objcCode call];
I'm guessing I would have to have:
    ObjcCode *objcCode;
declared globally in the library, and that would suffice?

Thanks!

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References: 
 >Calling a Cocoa library from C (From: Nathan Sims <email@hidden>)
 >Re: Calling a Cocoa library from C (From: Wim Lewis <email@hidden>)

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