Article View: comp.bugs.4bsd
Article #228Re: Bug in users command
From: John F Haugh II
Date: Sat, 19 Jan 1991 19:34
Date: Sat, 19 Jan 1991 19:34
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In article <18928:Jan1916:26:3291@kramden.acf.nyu.edu> brnstnd@kramden.acf.nyu.edu (Dan Bernstein) writes: >No. Unless I'm mistaken, the objects being passed in are pointers to >arrays of char, while the objects expected are pointers to char. There >is no implicit conversion that justifies this, though undoubtedly it >works on most machines. How does a pointer to an unknown number of characters differ from a pointer to a known number of characters when passed as an argument? qsort() invokes scmp() with the pointer to an array of UT_NAMESIZE characters. scmp() is expecting a pointer to a character, which is coincidentally the same type object as "char a[UT_NAMESIZE]" since any "array of type X" type parameters are converted to "pointer to type X object" parameters. I believe this is plainly specified both by ANSI-C and K&R-Classic. >Anyway, the 200-user limit is purely silly. Agreed. -- John F. Haugh II UUCP: ...!cs.utexas.edu!rpp386!jfh Ma Bell: (512) 832-8832 Domain: jfh@rpp386.cactus.org "While you are here, your wives and girlfriends are dating handsome American movie and TV stars. Stars like Tom Selleck, Bruce Willis, and Bart Simpson."
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!watserv1!watmath!att!tut.cis.ohio-state.edu!cs.utexas.edu!execu!sequoia!rpp386!jfh From: jfh@rpp386.cactus.org (John F Haugh II) Newsgroups: comp.bugs.4bsd Subject: Re: Bug in users command Message-ID: <18965@rpp386.cactus.org> Date: 19 Jan 91 19:34:22 GMT References: <18947@rpp386.cactus.org> <1126:Jan1811:17:4091@kramden.acf.nyu.edu> <18958@rpp386.cactus.org> <18928:Jan1916:26:3291@kramden.acf.nyu.edu> Reply-To: jfh@rpp386.cactus.org (John F Haugh II) Organization: Lone Star Cafe and BBS Service Lines: 24 X-Clever-Slogan: Recycle or Die.