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Re: API differences between GNUstep and OS X


From: Eric Wasylishen
Subject: Re: API differences between GNUstep and OS X
Date: Sun, 26 Feb 2012 19:25:34 -0700

Hi Jens,
It's hard to say in general what API's you can expect to be up to date with Apple's Foundation. 

−[NSFileManager removeItemAtPath:error:], is in the latest gnustep-base release, 1.24.0. It's just a wrapper which calls [self removeFileAtPath: path handler: nil]; though.

+[NSData dataWithContentsOfFile:options:error:] is not present (only +[NSData dataWithContentsOfFile:].)

Since 1.24.0 is only a few weeks old, it won't show up in linux distributions for a while. I'd suggest using it though, because the previous release is around a year old and there have been many improvements since then.

Also worth mentioning is we have documentation here for gnustep-base:
however it has not been regenerated to reflect the latest release yet.

Eric

On 2012-02-26, at 5:06 PM, Jens Alfke wrote:

I’ve gotten past my installation problem (thanks everyone!) and now I’m getting down to making my code compile. I’m running into a lot of issues where APIs are different or missing. Some of these are Linux vs. BSD (e.g. digittoint), some are Apple frameworks that aren’t part of GNUstep (e.g. CommonCrypto). Those are expected and I’m dealing with them.

But there are also a lot of instances where the GNUstep base framework is out of date with respect to Apple’s Foundation. A lot of methods that’ve been around since OS X 10.5 seems to be missing; some I’ve run into are
−[NSFileManager removeItemAtPath:error:]
+[NSData dataWithContentsOfFile:options:error:]
I don’t expect everything to be identical to Apple’s headers, but I was expecting the differences to be in new APIs or obscure classes.

Is there a newer version of the framework available, or is this the state of the art and I’ll need to start changing my code or implementing those methods myself in categories?

—Jens
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