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From: ts@cup.portal.com (Tim W Smith)
Newsgroups: comp.sys.mac.programmer
Subject: Puzzle
Message-ID: <15029@cup.portal.com>
Date: 24 Feb 89 10:08:39 GMT
Organization: The Portal System (TM)
Lines: 12

Here's a puzzle.  Suppose a Macintosh disk driver had the following
bug:

	The ioActualCount and ioPosition fields of the parameter
	block are not updated after IO operations like they are
	supposed to be.  Instead, they are left whatever they
	were when the _Read or _Write call was made.

What would happen?  Would most programs only look at the result code
and ignore these fields, or would most programs break?

						Tim Smith