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From: sujm@pug.ece.cmu.edu (Sujoy Mitra)
Newsgroups: comp.unix.shell
Subject: cpp
Message-ID: <1991May30.145805.2451@fs7.ece.cmu.edu>
Date: 30 May 91 14:58:05 GMT
Sender: news@fs7.ece.cmu.edu (USENET News System)
Distribution: usa
Organization: Electrical and Computer Engineering, Carnegie Mellon
Lines: 29
Originator: sujm@pug.ECE.CMU.EDU

Is there a simple way to prevent the C-Preprocessor,
/usr/lib/cpp from applying macro definitions recursively?
According to the manual entry, the -R switch, 'permits recursion 
when a macro is expanded', but recursion seems to be the default!

Consider something simple like:

{
#define POWER POWER - power

POWER
}

This results in
{
power - power - power ... 

until some internal limit is exceeded.

I am using '/usr/lib/cpp' to pre-process a data file.
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From: sujm@pug.ECE.CMU.EDU (Sujoy Mitra)
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