delorie.com/archives/browse.cgi | search |
X-Authentication-Warning: | delorie.com: mail set sender to djgpp-bounces using -f |
X-Received: | by 10.224.171.72 with SMTP id g8mr68803842qaz.7.1375215337741; |
Tue, 30 Jul 2013 13:15:37 -0700 (PDT) | |
X-Received: | by 10.49.81.208 with SMTP id c16mr972860qey.34.1375215337722; Tue, |
30 Jul 2013 13:15:37 -0700 (PDT) | |
Newsgroups: | comp.os.msdos.djgpp |
Date: | Tue, 30 Jul 2013 13:15:37 -0700 (PDT) |
In-Reply-To: | <f24e8cd3-83ca-4386-a319-a9adb4d74c68@googlegroups.com> |
Complaints-To: | groups-abuse AT google DOT com |
Injection-Info: | glegroupsg2000goo.googlegroups.com; posting-host=2.174.141.199; |
posting-account=v5xbdQoAAAAOGc9Ccc-kLZyobvPlN3Qr | |
NNTP-Posting-Host: | 2.174.141.199 |
References: | <21e77579-1a40-4442-8111-fc976fba78fc AT googlegroups DOT com> |
<b5o37qFldl9U1 AT mid DOT dfncis DOT de> <f24e8cd3-83ca-4386-a319-a9adb4d74c68 AT googlegroups DOT com> | |
User-Agent: | G2/1.0 |
MIME-Version: | 1.0 |
Message-ID: | <3df2f50f-9543-47a7-8e40-a9be82ce5018@googlegroups.com> |
Subject: | Re: _CRT0_FLAG_NULLOK |
From: | Georg Potthast <dosusb AT googlemail DOT com> |
Injection-Date: | Tue, 30 Jul 2013 20:15:37 +0000 |
Bytes: | 2114 |
Lines: | 24 |
To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
Reply-To: | djgpp AT delorie DOT com |
Errors-To: | nobody AT delorie DOT com |
X-Mailing-List: | djgpp AT delorie DOT com |
X-Unsubscribes-To: | listserv AT delorie DOT com |
Yes, the code works fine in a Windows XP DOS box and crashes in real mode DOS. That is the reason I posted this. Anyhow, I now changed my code and test if the variable is not NULL. I still feel it would be a better "user experience" if atoi() would not crash. As far as I understand the specification does not require atoi() to crash if a NULL pointer is passed. In one of your links it says: >In AIX when passed a NULL to strchr(), it returns a NULL and the program runs >without aborting I also found this with HP Tru64 UNIX: int atoi(const char *nptr ); ERRORS If nptr is NULL, the functions return 0 and do not set errno. So some system do avoid a crash with atoi(). Georg http://h30097.www3.hp.com/docs/base_doc/DOCUMENTATION/V51B_HTML/MAN/MAN3/1938____.HTM P.S. I tried to post a similar message before which seems to have vanished.
webmaster | delorie software privacy |
Copyright © 2019 by DJ Delorie | Updated Jul 2019 |