cpp question: (Yes, I try to duck flames at the end)

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Article #184

#184

From: Ken Corey - Operator
Date: Tue, 28 Jul 1992 19:27

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Well, I was trying to compile a program yesterday, and ran into a problem I
never saw before.  The c file had the following definition:

 #define MUL(x,y)  ((x) << (y/**/Shift))

Which, when this line of code is processed:

 x = MUL(this,that);

will return this after CPP:

 x = ((this) << (that Shift));
                     ^
                     |
              This is the problem.

The result that's desired is the variable 'thatShift' in this case.

Is there a setting for the gcc frontend that will help this along?  (the man
page didn't say much of nothing about cpp.)

Anyway, I'd appreciate it if y'all could email any answers, as I don't
regularly read this group.

-Thanks! 
 Ken

-- 
Ken == kenc@sol.acs.unt.edu == kenc@vaxb.acs.unt.edu
 Rule of the Great:
 	When people you greatly admire appear to be thinking deep
 	thoughts, they probably are thinking about lunch.

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Path: arc1-ca.pugleaf.net!sparky!uunet!darwin.sura.net!mips!swrinde!cs.utexas.edu!mercury.unt.edu!sol!kenc
From: kenc@sol.acs.unt.edu (Ken Corey - Operator)
Newsgroups: gnu.gcc.help
Subject: cpp question:  (Yes, I try to duck flames at the end)
Message-ID: <1992Jul28.192753.19315@mercury.unt.edu>
Date: 28 Jul 92 19:27:53 GMT
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Organization: University of North Texas
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