small LSC ControlMgr.h problem

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Article #20885

#20885

From: mms
Date: Sat, 31 Oct 1987 04:03

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A small problem I found while writing my Very First CDEF (in LSC 2.01)...

In the definition of the typedef ControlRecord, field contrlHilite
(among others) is of type char.  If the control is to be inactive,
this field should be set to 255.  Unfortunately, if contrlHilite is
subsequently compared to 255 or 0xff, the code generated sign-extends
contrlHilite but not 255 and therefore does not find them to be equal.

I believe contrlHilite should be of type unsigned char and not char.

John Chew
-- 
john j. chew (v3.0)                       poslfit@gpu.utcs.toronto.edu
+1 416 463 5403 (300/1200 bps)            poslfit@utorgpu.bitnet
{cbosgd,decvax,mnetor,utai,utcsri,{allegra,linus}!utzoo}!utgpu!poslfit
"Script-G for open, sub-delta for durchschnitt"

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Message-ID: <1987Oct30.230309.12490@gpu.utcs.toronto.edu>

Path: arc1-ca.pugleaf.net!utzoo!utgpu!mms

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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: arc1-ca.pugleaf.net!utzoo!utgpu!mms
From: mms@utgpu.UUCP
Newsgroups: comp.sys.mac
Subject: small LSC ControlMgr.h problem
Message-ID: <1987Oct30.230309.12490@gpu.utcs.toronto.edu>
Date: Fri, 30-Oct-87 23:03:09 EST
Article-I.D.: gpu.1987Oct30.230309.12490
Posted: Fri Oct 30 23:03:09 1987
Date-Received: Sat, 31-Oct-87 15:38:56 EST
Reply-To: mms@gpu.utcs.UUCP (John J. Chew III)
Organization: The Poslfit Committee
Lines: 17
Checksum: 33644
Summary: unsigned char contrlHilite