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From: bret@hi.UUCP (Bret K. Thaeler)
Newsgroups: comp.unix.wizards,comp.unix.questions,comp.lang.c
Subject: Re: need cpp macros to concatenate names
Message-ID: <6205@hi.UUCP>
Date: Wed, 6-May-87 05:47:25 EDT
Article-I.D.: hi.6205
Posted: Wed May  6 05:47:25 1987
Date-Received: Sat, 9-May-87 00:36:16 EDT
References: <634@calma.UUCP>
Distribution: na
Organization: U. of New Mexico, Albuquerque
Lines: 69
Summary: Possible Solution
Xref: mnetor comp.unix.wizards:2180 comp.unix.questions:2170 comp.lang.c:2082

> #define prefix my
> 
> #define concat(x,y) x\
> y
> 
> main()
> {
> 	long *concat(prefix,file);
> }
> 

This is our attempt. This was done on a Sun running 3.3.

#define pre()my
#define prefix pre()
#define concat(x,y)x//**/**/y

main()
{
	long *concat(prefix,file);
}

----------------- producing -----------------
main()
{
	long *myfile;
}

=============================================


Now for the hard one.... What if you want BOTH of the concat() args
to be #define's??? 

#define  prefix my
#define  post()file
#define  postfix post()
#define concat(x,y)x//**/**/y

main()
{
	long *concat(prefix,postfix);
}

----------------- producing -----------------

main()
{
	long *myfile;
}

=============================================

Brought to you by the minds of ... 
	--Bret

Who said hackers were no good bums?
	--Josh

Who needs m4?
	--Kurt


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