Date: Sat, 22 Jan 2005 20:20:00 +0300 From: Andrey Chernov <ache@nagual.pp.ru> To: Thomas Dickey <dickey@radix.net> Cc: current@FreeBSD.ORG Subject: Re: Implementation errors in strtol() Message-ID: <20050122172000.GC39943@nagual.pp.ru> In-Reply-To: <20050122124032.GA26006@saltmine.radix.net> References: <20050121201400.GQ30862@uriah.heep.sax.de> <20050121221156.GA21459@nagual.pp.ru> <20050120192324.GA30862@uriah.heep.sax.de> <20050120205501.GA69123@nagual.pp.ru> <20050120211449.GC30862@uriah.heep.sax.de> <20050120214406.GA70088@nagual.pp.ru> <20050120222137.GE30862@uriah.heep.sax.de> <20050121230949.GA34313@VARK.MIT.EDU> <20050122113015.GV30862@uriah.heep.sax.de> <20050122124032.GA26006@saltmine.radix.net>
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--ZGiS0Q5IWpPtfppv Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Sat, Jan 22, 2005 at 07:40:33AM -0500, Thomas Dickey wrote: > > Nope. Just think about it: code which doesn't take this feature into > > account needs to check for conversion errors by means of verifying > > endptr. It simply wouldn't care about errno at all, except for > > That's what I always do - that's the way strtol was first documented. > Adding errno tweaks on top of that is (as noted) neither portable nor > necessary. The story not ends here. After checking endptr you should check for overflow, and there you need to consider both cases. See my detailed reply to Joerg. -- http://ache.pp.ru/ --ZGiS0Q5IWpPtfppv Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (FreeBSD) iQCVAwUBQfKLQOJgpPLZnQjrAQGF1QP/TXhEOwTp9IKWk4rMfdy87/Dbdaoz5mIv nwVOb9irlGcOP6VCBqpUo9asGleV5kVPXaENzliNR+ifwVsG2f8WM76AwhWAWzxX 26u8miXSXl7DP5r170muCft2NakM3AdtHBXV90h9uCy3Q+8EjSAcFnQ9zIXKgXmn mPS9QOyZ5es= =PQbv -----END PGP SIGNATURE----- --ZGiS0Q5IWpPtfppv--
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