Re: printf precision for strings

Article View: comp.std.c

Article #2819

#2819

From: Doug Gwyn
Date: Fri, 26 Apr 1991 19:03

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In article <1991Apr26.143651.18289@watmath.waterloo.edu> rbutterw@watmath.waterloo.edu (Ray Butterworth) writes:
>Shouldn't the precision of 0 guarantee that no output will occur,
>or does using the bad pointer mean all bets are off?

"The argument SHALL be a pointer to an array of character type."
Violation of a "shall" produces undefined behavior.
You're lucky it didn't ABEND.

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!wuarchive!udel!princeton!njin!rutgers!cmcl2!adm!smoke!gwyn
From: gwyn@smoke.brl.mil (Doug Gwyn)
Newsgroups: comp.std.c
Subject: Re: printf precision for strings
Message-ID: <15986@smoke.brl.mil>
Date: 26 Apr 91 19:03:46 GMT
References: <1991Apr26.143651.18289@watmath.waterloo.edu>
Organization: U.S. Army Ballistic Research Laboratory, APG, MD.
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