argument substitution in cpp

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Article #54270

#54270

From: Thomas Hiller
Date: Fri, 04 Jan 1991 15:24

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I have a problem with the argument substitution of GNU cpp.

My macro is:
#define Ctrl(x) ('x'&037)

The GNU cpp does not substitute the x in the character string.
The standard cpp (ultrix 3.1) does.

Is this an error in GNU cpp or is my macro not conform with ANSI ?
If the latter is true, what is the correct macro.

Thanks, Thomas
-- 
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Thomas Hiller	Institut fuer Mikrorechner und Automation
		Universitaet Karlsruhe
		Kaiserstrasse 12
		D-7500 Karlsruhe
E-Mail:	hiller@iravcl.ira.uka.de or
	hiller@fzi.uka.de
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From: hiller@fzi.uka.de (Thomas Hiller)
Newsgroups: gnu.gcc.help
Subject: argument substitution in cpp
Message-ID: <91.004.15:24:54@ira.uka.de>
Date: 4 Jan 91 15:24:53 GMT
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