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From: woody@tybalt.caltech.edu (William Edward Woody)
Newsgroups: comp.sys.mac.programmer
Subject: Bug (?) in MPW C v2.0.2
Message-ID: <6330@cit-vax.Caltech.Edu>
Date: 1 May 88 03:23:38 GMT
Sender: news@cit-vax.Caltech.Edu
Reply-To: woody@tybalt.caltech.edu (William Edward Woody)
Organization: California Institute of Technology
Lines: 27


I think I've found a bug in MPW C v2.0.2.  Can others out there
verify if this is a problem?

The bug:
    In the expression:

       screen->h = (page->h) >> p2wscale + xOffset;

    where the variables above are:

    Point *screen,*page;
    short p2wscale,xOffset;

    If p2wscale == 0, the value of screen->h is set to xOffset; the
expression (page->h) >> p2wscale evaluates to 0, even when page->h is
not zero.

    Shouldn't screen->h evaluate to page->h + xOffset when p2wscale is
zero?

    Has others noticed this problem?  Please respond directly to me, as
I sometimes don't read this net too closely, and responces can sometimes
slip through.
  -  William Edward Woody
     woody@tybalt.caltech.edu                   (Mac>][n&&/|\)&&(MacII>AT)
Disclamer:  I haven't the foggiest idea what I'm talking about...