Article View: net.lang.c
Article #9588Re: Signed char - What Foolishness Is This!
From: John Plocher
Date: Sat, 18 Oct 1986 22:21
Date: Sat, 18 Oct 1986 22:21
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guy@sun.UUCP respondes to another poster about ctype macros and characters on the IBM PC with the 8th bit set: >> 1) Do other C compilers make 'char' a signed quantity by default? > >I presume, by the way, that "isupper(<u-umlaut>)" is intended to return 0 >and "isupper(<U-umlaut>)" is intended to return 1. If Microsoft didn't put >the extended character set into the "ctype" tables, the way that the >indexing is done is irrelevant. I hope you both remember that isANYTHING(x) is only defined to work if isascii(x) is true! isascii(u-umlaut) is FALSE! Thus, isupper(u-umlaut) does not NEED to work. -- harvard-\ /- uwmacc!uwhsms!plocher (work) John Plocher seismo-->!uwvax!< topaz-/ \- puff!plocher (school) "Never trust an idea you get sitting down" - Nietzche
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!uwvax!puff!plocher From: plocher@puff.wisc.edu (John Plocher) Newsgroups: net.lang.c,net.micro.pc Subject: Re: Signed char - What Foolishness Is This! Message-ID: <246@puff.wisc.edu> Date: Sat, 18-Oct-86 18:21:43 EDT Article-I.D.: puff.246 Posted: Sat Oct 18 18:21:43 1986 Date-Received: Sat, 18-Oct-86 23:22:33 EDT References: <8719@duke.duke.UUCP> <8273@sun.uucp> Reply-To: plocher@puff.WISC.EDU (John Plocher) Organization: U of Wisconsin CS Dept Lines: 17 Keywords: RTFM :-) Summary: did you try isascii() before doing isupper()?