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From: eric@snark.UUCP (Eric S. Raymond)
Newsgroups: comp.lang.c
Subject: Re: Printing binary
Message-ID: <247@snark.UUCP>
Date: Sun, 25-Oct-87 10:30:22 EST
Article-I.D.: snark.247
Posted: Sun Oct 25 10:30:22 1987
Date-Received: Thu, 29-Oct-87 20:39:20 EST
References: <35@ateng.UUCP> <3194@sol.ARPA> <2783@xanth.UUCP> <235@snark.UUCP> <2072@watcgl.waterloo.edu>
Sender: eric@snark.UUCP (Eric S. Raymond)
Organization: Benevolent Space Xist Retirement Home
Lines: 11
Summary: But you can't do sprintf with it

In article <1646@spar.SPAR.SLB.COM>, hunt@spar.SPAR.SLB.COM (Neil Hunt) writes:
> This is crying out for recursion: [followed by a print_binary implementation]

Now that's more elegant than my internal-to-hex-nybbles-to binary hack (which
I posted mostly for its giggle value). It also avoids the flaw of the second
proposal (which is nonportable, requiring this ugly #define in source for the
machine's word length). 

But your trick can't be generalized to do the sprintf analogue. GONG!

:-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-)