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From: jpl@allegra.UUCP (John P. Linderman)
Newsgroups: net.lang.c
Subject: Re: Preprocessor Trickery
Message-ID: <2557@allegra.UUCP>
Date: Fri, 29-Jun-84 07:18:10 EDT
Article-I.D.: allegra.2557
Posted: Fri Jun 29 07:18:10 1984
Date-Received: Sun, 1-Jul-84 03:39:00 EDT
References: <12361@arizona.UUCP>, <141@pyuxt.UUCP>
Organization: AT&T Bell Laboratories, Murray Hill
Lines: 17

I expected to see a hail of responses to this item, but since a few
days have gone by, and the only response has been in support of X/**/y,
the following ought to see the light of day:

#define QUOTE(X) X
#define MAKENAME(Y) QUOTE(X)Y
#define CAT(X,Y) QUOTE(X)Y

MAKENAME(lax)
CAT(X,pertsystems)

As long as macros are supported, this mechanism will work; no tricky
stuff.  To give credit where it is due, I think I first saw the
QUOTE macro used by Mike Bianchi, for quite different reasons.
It's a useful addition to one's bag of tricks.

John P. Linderman  Department of Macro Biology  allegra!jpl