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From: brett@wjvax.UUCP
Newsgroups: net.unix-wizards
Subject: 4.2 BSD Preprocessor Query (result)
Message-ID: <689@wjvax.wjvax.UUCP>
Date: Wed, 23-Apr-86 11:58:38 EST
Article-I.D.: wjvax.689
Posted: Wed Apr 23 11:58:38 1986
Date-Received: Sat, 26-Apr-86 05:09:57 EST
Reply-To: brett@wjvax.UUCP (Brett Galloway)
Organization: Watkins-Johnson Co., San Jose, Calif.
Lines: 19
Keywords: 4.2, BSD, cpp

> I have a program in which I have a macro defining a number.  I want the
> C compiler/preprocessor to generate a string containing that number.
> For example ...
>
> #define	NUM	2
> #define	NUMSTR	"NUM"
>
> The problem is that the C preprocessor will not substitute NUM when it is
> in quotes.  My question (for this example) is whether there is any way to
> generate a macro with value "2" frm the macro NUM.

The concensus seems to be that the C preprocessor cannot be made to substitute
for macros within quotes.  Period.  Thank you to those who responded.  It is
rather disappointing that cpp can't be made to substitute in this case.
Oh well ...  at least I know that I have to find a work-around.

-------------
Brett Galloway
{pesnta,twg,ios,qubix,turtlevax,tymix,vecpyr,certes,isi}!wjvax!brett