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From: russotto@eng.umd.edu (Matthew T. Russotto)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Swapping Handles
Message-ID: <1990Dec10.010223.2436@eng.umd.edu>
Date: 10 Dec 90 01:02:23 GMT
References: <2599@runxtsa.runx.oz.au>
Sender: news@eng.umd.edu (C-News)
Organization: College of Engineering, Maryversity of Uniland, College Park
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In article <2599@runxtsa.runx.oz.au> karlg@runxtsa.runx.oz.au (Karl Goiser) writes:
>
>If I swap the master pointers (?) of two Handles like so:
> 
>VAR
>   H1, H2: Handle;
>...
>Ptemp:= H2^;
>H2^:= H1^;
>H1^:= H2^;
>...
> 
>will I hurt anybody or anything (including myself)?

Yes-- you could lose the flags byte under a 32-bit Memory manager, and other
forms of heap corruption are probably also possible.

--
Matthew T. Russotto	russotto@eng.umd.edu	russotto@wam.umd.edu
     .sig under construction, like the rest of this campus.