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Re: GNUstep error handling

From: Richard Frith-Macdonald
Subject: Re: GNUstep error handling
Date: Tue, 13 Mar 2018 08:32:28 +0000

> On 13 Mar 2018, at 01:52, amon <address@hidden> wrote:
> I've run across documentation in GNUstep that talks of NS_HANDLER,
> etc, which I've never used. I presume this is something relatively
> new from the Apple world as I don't remember it (or any error
> handler) from NeXTstep and in fact I've pretty much always used
> @try/@catch/@finally for about as long as I can remember and I
> think before that I just rolled my own stack unwinder error
> handler.
> Are they just macro covers over the original syntax or do they
> add some features?
> I use a lot of @throw NSException's since daemon code is not
> allowed to not work. It has to punt to a level that can retry,
> no matter what goes wrong with the outside world. Hey, you never
> know... a solar flare might have taken out the server I'm
> taking data from!
> Are there any overriding reasons to shift an old body of code
> over to the new method?

NS_HANDLER is the *original* exception handler, which predates @catch (it was 
the only exception handling mechanism for many years).
If you are only using platforms with modern compilers, you don't need it. 

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