Path: utzoo!attcan!uunet!aplcen!uakari.primate.wisc.edu!zaphod.mps.ohio-state.edu!usc!apple!mjohnson
From: mjohnson@Apple.COM (Mark B. Johnson)
Newsgroups: comp.sys.mac
Subject: Re: Chooser and Error Handling
Message-ID: <38599@apple.Apple.COM>
Date: 13 Feb 90 19:45:40 GMT
References: <1990Feb12.220022.19862@utzoo.uucp> <25d7743b.425f@polyslo.CalPoly.EDU> <6664@internal.Apple.COM>
Organization: Apple Computer Inc, Cupertino, CA
Lines: 24

In article <6664@internal.Apple.COM> dowdy@apple.com (Tom Dowdy) writes:
>
>For excellent error handling, see the MacApp Failure mechanism, which may 
>also be available from DTS in one of the sample code sets (Mark?).  I've 
>used the FailNIL(), FailOSErr() type calls in many non-MacApp programs.  
>They work well and really stay out of the way of your code.  In addition, 
>code can choose to allow certain errors to happen in the normal course of 
>things, catch them, clean up and continue.  Classic examples of this would 
>be using the EOF error to terminate reading from a file.  Larry can 
>probably give other good examples from the MacApp source.
>

See Macintosh Technical Note #88, Signals and Macintosh Sample Code #12 by
the same name.  Both are available for anonymous FTP from Apple.com (IP
address 130.43.2.2).  Look in the ~ftp/pub/dts/mac directory.


-- 
Mark B. Johnson                                            AppleLink: mjohnson
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