Newsgroups: comp.lang.c
Path: utzoo!utgpu!jarvis.csri.toronto.edu!csri.toronto.edu!flaps
From: flaps@csri.toronto.edu (Alan J Rosenthal)
Subject: Re: macros with parameters in MSC 5.0
Message-ID: <1988Feb20.173516.29974@jarvis.csri.toronto.edu>
Organization: University of Toronto
References: <11879@brl-adm.ARPA>
Date: Sat, 20-Feb-88 17:35:16 EST


In article <11879@brl-adm.ARPA> jbaker@ee.UCLA.EDU (Joe Baker) writes:
>#define ctl(c) ('c'&037)
...
>I have come up with some ugly fixes, but would like to know: what is
>the Right Way to do this?

how about
    #define ctl(c)((c) & 31)
and call it as
    ctl('a')

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