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From: gwyn@brl-smoke.UUCP
Newsgroups: comp.lang.c
Subject: Re: MSC toupper (was  Re: MS-DOS NRO )
Message-ID: <5990@brl-smoke.ARPA>
Date: Mon, 15-Jun-87 21:14:43 EDT
Article-I.D.: brl-smok.5990
Posted: Mon Jun 15 21:14:43 1987
Date-Received: Thu, 18-Jun-87 01:20:45 EDT
References: <405@ritcv.UUCP> <725@thumper.UUCP> <345@polyslo.UUCP> <2065@husc6.UUCP> <348@polyslo.UUCP> <494@ucsbcsl.UUCP>
Reply-To: gwyn@brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 6

In article <494@ucsbcsl.UUCP> lombrozo@ucsbcsl.UUCP (Peter Lombrozo) writes:
>I don't suppose anyone noticed the correct #define for toupper() is:
>#define toupper(c)  ( (islower(c)) ? _toupper(c) : (c) )

Nobody noticed that, because it's not true.
Consider what happens if `c' has side-effects.