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Re: Cocoa Endians for Mac-Intel
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Re: Cocoa Endians for Mac-Intel


  • Subject: Re: Cocoa Endians for Mac-Intel
  • From: Chad Weider <email@hidden>
  • Date: Thu, 30 Mar 2006 18:23:30 -0600

You would probably use the functions outlined here:

http://developer.apple.com/documentation/Carbon/Reference/ CoreEndianReference/index.html#//apple_ref/doc/uid/TP40002223

Most notably the LtoN (little endian to native) functions.


Chad Weider email@hidden


On Mar 30, 2006, at 3:34 PM, Shawn Erickson wrote:

On 3/30/06, Lorenzo <email@hidden> wrote:
Hi,
I have just ported my app to Mac-Intel. It works pretty well excepted for
some part. For example, when I earlier compiled for the Mac platform only, I
had to convert some float, read from a win file, to the big endians for Mac.
Now, for the Mac-Intel version I check #ifdef __LITTLE_ENDIAN__
then I don't convert the float to big endians, and this works well.
That was easy because I know that the data come from a win file.


But as I have seen, now I have to convert some other variables to the little
endians when #ifdef __LITTLE_ENDIAN__
So I ask to myself, what should I convert?
How to determine the variables I have to convert to little endians and the
variables I can quite leave as they are?


In my code I use QuickTime, OpenGL, Cocoa, C, ObjectiveC.
Thank for any suggestion.

Your question isn't specific enough to help so I suggest you review...

<http://developer.apple.com/documentation/MacOSX/Conceptual/ universal_binary/universal_binary_intro/chapter_1_section_1.html>

...found on...

<http://developer.apple.com/transition/>
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References: 
 >Cocoa Endians for Mac-Intel (From: Lorenzo <email@hidden>)
 >Re: Cocoa Endians for Mac-Intel (From: "Shawn Erickson" <email@hidden>)

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