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Article #6016

Rascal Library fixes

#6016
From: Paul DuBois
Date: Tue, 10 Jun 1986 18:33
41 lines
1804 bytes
Here's some things Rascal programmers might like to fix in their
libraries.

in uToolIntf:

The KeyMap type is defined as Byte[8].  Should be Byte[16].  Guaranteed
to crash otherwise.

in __DeskLib:

The GetResIDBase function has a line that says

	if !IsDARun then ...

Since IsDARun is a function, one wants to test its value, not its
address.  Replace with

	if !IsDARun () then ...

in __ToolLink:

TEFromScrap has a line that says

	L := GetScrap (TEScrapHandle(), ptrl (" TEXT"+2)^, 0L);

That "0L" parameter is supposed to be the address of a long variable,
into which an offset is placed.  0L will work, coincidentally, but
isn't really correct.  It will also mess up techniques such as early
detection of nil pointers by placing -1L at address zero (this is used,
e.g., in some of the Skels posted to the net a while back).

Fix:  declare a LongInt variable offset, change above line to:

	L := GetScrap (TEScrapHandle(), ptrl (" TEXT"+2)^, @offset);
-- 
Paul DuBois     UUCP: {allegra,ihnp4,seismo}!uwvax!uwmacc!dubois    |
                ARPA: dubois@easter                               --+--
                                                                    |
Doth the hawk fly by thy wisdom, and stretch her wings              |
toward the south?                        Job 39:26
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From: dubois@uwmacc.UUCP (Paul DuBois)
Newsgroups: net.micro.mac
Subject: Rascal Library fixes
Message-ID: <2252@uwmacc.UUCP>
Date: Tue, 10-Jun-86 14:33:44 EDT
Article-I.D.: uwmacc.2252
Posted: Tue Jun 10 14:33:44 1986
Date-Received: Sat, 14-Jun-86 04:00:58 EDT
Distribution: net
Organization: UW-Madison Primate Center
Lines: 41