Path: utzoo!telly!attcan!uunet!tut.cis.ohio-state.edu!ucbvax!decwrl!armada!becher
From: becher@armada.UUCP (Jonathan D. Becher)
Newsgroups: gnu.gcc
Subject: Lack of "feature" in gcc-cpp
Keywords: stringification
Message-ID: <94@armada.UUCP>
Date: 10 Mar 89 22:31:42 GMT
Organization: none
Lines: 15

Is there any way with the GNU preprocessor to turn a macro
argument into a charater constant.  We are trying to duplicate 
the following macro from <sys/ioctl.h> but gcc-cpp does not
expand macro arguments inside strings and character constants.
BTW, stringification does not do what we want. We also do not want
to use -traditional because it turns off other ANSI features.

#define _IOR(x,y,t) 			\
		(int)(IOC_OUT|((sizeof(t)&IOCPARM_MASK)<<16)|('x'<<8)|y)


Thanks for any help,
Jon Becher

argosy!becher@decwrl.dec.com