Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!mailrus!cornell!uw-beaver!ssc-vax!uvicctr.UVic.CA!franklin
From: franklin@uvicctr.UVic.CA.UUCP (Katherine Franklin)
Newsgroups: comp.sys.mac.programmer
Subject: MPW Pascal and self referencing
Message-ID: <939@uvicctr.UVic.CA.UUCP>
Date: 2 Mar 90 20:37:26 GMT
Reply-To: franklin@uvicctr.UUCP (Katherine Franklin)
Distribution: na
Organization: University of Victoria, Victoria B.C. Canada
Lines: 23

I am writing an MPW Pascal tool, and I have written an invariant check
function. What I would like to do is call is this function many times
throughout the program and each time the invariant *doesn't* hold is to
write a message to the console.  

I would like an easily maintainable way of telling the user which call 
to the invariant function failed. I don't want to hard code a label for them, 
because that makes them very hard to maintain if I insert another function 
call in my program. 

Unix C has a macro variable that allows you to pass the current line number 
in the source code on to the object code to report during execution. I would 
like to do this, or some other dynamic way.

Is this possible ? if so, how ?

	Thanks,
	  Katherine

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Katherine Franklin			franklin@uvicctr.uvic.ca
University of Victoria			franklin@uvunix.bitnet
Victoria, BC, Canada