Path: utzoo!mnetor!uunet!mcvax!ukc!stc!ist!rb
From: rb@ist.CO.UK (News reading a/c for rb)
Newsgroups: comp.lang.c
Subject: Re: CPP defines...
Message-ID: <179@istop.ist.CO.UK>
Date: 3 Mar 88 20:36:35 GMT
References: <14192@hc.DSPO.GOV>
Organization: Imperial Software Technology, London, UK
Lines: 10

Here's a nasty little script that comes in useful when you
want to know what your cpp *really* predefines: we have found
that the man page is sometimes economical with the truth.
Those of you without strings(1) and/or a separate /lib/cpp will
have to use your imagination.
--------------------------------------------------------------
#!/bin/sh
strings -a -2 /lib/cpp | sed '/^a-zA-Z0-9_/!s/.*/#ifdef &\
"%&"\
#endif/p' |/lib/cpp |sed -n '/%/s/[%"]//gp'