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From: volpe@camelback.crd.ge.com (Christopher R Volpe)
Newsgroups: comp.lang.c
Subject: Re: Question with cpp and token pasting
Message-ID: <16265@crdgw1.crd.ge.com>
Date: 31 Jan 91 16:39:09 GMT
References: <1991Jan30.232740.1697267@locus.com>
Sender: news@crdgw1.crd.ge.com
Reply-To: volpe@camelback.crd.ge.com (Christopher R Volpe)
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Lines: 30

In article <1991Jan30.232740.1697267@locus.com>, bringo@locus.com (Bob
Ringo) writes:
|>Hi, this is probably a simple task, but I haven't figured it out.
|>I'd like to do the following:
|>
|>#define A "Good"
|>#define B "Morning"
|>#define C   /* the concatenation of A and B */
|>
|>
|>--I tried the following, but it didn't work.
|>
|>#define paste(x,y)  x ## y
|>#define A "Good"
|>#deifne B "Morning"
|>#define C paste(A,B)

Is there any reason you can't rely on the compiler's automatic concatenation
of adjacent string literals? For example,
              printf(A B);
will print "GoodMorning".

|>Bob Ringo
|>Locus Computing Corporation
|>bringo@locus.com
                       
==================
Chris Volpe
G.E. Corporate R&D
volpecr@crd.ge.com