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Path: utzoo!linus!decvax!harpo!seismo!rlgvax!guy
From: guy@rlgvax.UUCP (Guy Harris)
Newsgroups: net.lang.c
Subject: Re: Question about toupper and tolower
Message-ID: <1389@rlgvax.UUCP>
Date: Fri, 11-Nov-83 09:43:25 EST
Article-I.D.: rlgvax.1389
Posted: Fri Nov 11 09:43:25 1983
Date-Received: Sun, 13-Nov-83 04:53:17 EST
References: <1764@fortune.UUCP> <300@bbncca.ARPA>
Organization: CCI Office Systems Group, Reston, VA
Lines: 7

Turning the 040 bit on and off will correctly map a mixed-case alphabetic
string to one case, but it will not work on all non-alphabetic characters.
If one is not guaranteed that the string does not contain those characters,
one would still have to do an isalpha() on the character before mapping.

	Guy Harris
	{seismo,ihnp4,allegra}!rlgvax!guy