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Re: C functions and instance variables
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Re: C functions and instance variables


  • Subject: Re: C functions and instance variables
  • From: "Hamish Allan" <email@hidden>
  • Date: Fri, 28 Mar 2008 09:28:46 +0000

On Fri, Mar 28, 2008 at 9:14 AM, Trygve Inda <email@hidden> wrote:

> I have a Cocoa object with .m and .h files and need to include in this a
>  series of about 30 C functions which all all in their own .c file. Is it
>  possible to give functions in the .c file access to the .m files instance
>  variables?

No, but you can rename the file.c as file.m, pass a pointer to self
from your Obj-C method to your C function, and use the ivars' Obj-C
getters/setters within your C function.

>  How can I do this without rewriting the .c functions as Obj-C?

You don't need to rewrite anything, as you can mix C and Obj-C freely
in a .m file.

>  Also, is there a way to use two .m files for one object so that all my code
>  doesn't have to be in one file? Can I just #import one .m file into the
>  other?

You can use categories:

http://developer.apple.com/documentation/Cocoa/Conceptual/ObjectiveC/Articles/chapter_4_section_1.html

Hamish
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 >C functions and instance variables (From: Trygve Inda <email@hidden>)

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