X-Authentication-Warning: delorie.com: mail set sender to djgpp-bounces using -f From: =?iso-8859-15?Q?Rafael_Garc=EDa?= Newsgroups: comp.os.msdos.djgpp Subject: Re: strange comparison error Date: Tue, 23 Mar 2004 10:23:03 +0100 Organization: Telefonica Data Espagna Lines: 18 Message-ID: References: <200403221712 DOT i2MHCeik004358 AT envy DOT delorie DOT com> NNTP-Posting-Host: 100.red-80-34-252.pooles.rima-tde.net Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15; format=flowed X-Trace: nsnmrro2-gest.nuria.telefonica-data.net 1080033945 22834 80.34.252.100 (23 Mar 2004 09:25:45 GMT) X-Complaints-To: usenet AT nsnmrro2-gest DOT nuria DOT telefonica-data DOT net NNTP-Posting-Date: Tue, 23 Mar 2004 09:25:45 +0000 (UTC) User-Agent: Opera7.11/Win32 M2 build 2887 To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com En Mon, 22 Mar 2004 12:12:40 -0500, DJ Delorie escribió: > >> if (pcampo>reg+MAXFIELDS) { // intercept huge (bad) values > > If integer overflow is the culprit, you'll find this a bit safer: > > if (pcampo-reg > MAXFIELDS) { // intercept huge (bad) values > Sorry, I don't understand. Could you please explain a bit more? We are using 32 bit numbers, the size of the struct is around 100 bytes. We should go to thousands of t_field's to reach overflow. Right? I have 14 here. -- Using M2, Opera's revolutionary e-mail client: http://www.opera.com/m2/