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From: bugzilla-daemon@bugs.ecos.sourceware.org To: unassigned@bugs.ecos.sourceware.org Subject: [Bug 1001490] C99 snprintf() does not include terminated null in truncated strings Date: Thu, 09 Aug 2012 10:00:00 -0000 [thread overview] Message-ID: <20120809100017.2EC17151A017@mail.ecoscentric.com> (raw) In-Reply-To: <bug-1001490-777@http.bugs.ecos.sourceware.org/> Please do not reply to this email. Use the web interface provided at: http://bugs.ecos.sourceware.org/show_bug.cgi?id=1001490 --- Comment #8 from Bernd Edlinger <bernd.edlinger@hotmail.de> 2012-08-09 11:00:15 BST --- (In reply to comment #7) Sergei, > > This function needs 816 bytes on the stack, > > even if you do not use any %f formats! > > > > Maybe reducing this number could be worth the effort. > Even if CYGSEM_LIBC_STDIO_PRINTF_FLOATING_POINT is not defined? hmm, thats funny..... Without that define it is only 152 bytes. That is 664 bytes difference. BUT #define BUF changes only from 40 to 326. Incredible, but I think I can reduce this easily: cvt(), round(), and exponent() are all inlined. However, char expbuf[MAXEXP] is 308 bytes!!! but the largest possible exponent, "308", needs 3 only bytes. Good you asked about that. Thanks! This will reduce the stack use by 305 bytes. > Bernd, could you, please, prepare the patch on 0-padding with ChangeLog > entry? It seems to me the patch can be submitted for bug #20804 > record. > Thank you, > Sergei Ok, I am going to fix that stack issue too, and if you do not mind, I'd also like to fix the %g issue [Bug #1001628] and submit a cumulative patch at [Bug #20804]. Thanks, Bernd. -- Configure bugmail: http://bugs.ecos.sourceware.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug.
next prev parent reply other threads:[~2012-08-09 10:00 UTC|newest] Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-02-19 13:11 [Bug 1001490] New: " bugzilla-daemon 2012-06-27 18:37 ` [Bug 1001490] " bugzilla-daemon 2012-08-07 10:06 ` bugzilla-daemon 2012-08-07 16:44 ` bugzilla-daemon 2012-08-08 7:31 ` bugzilla-daemon 2012-08-08 16:58 ` bugzilla-daemon 2012-08-09 7:50 ` bugzilla-daemon 2012-08-09 8:52 ` bugzilla-daemon 2012-08-09 10:00 ` bugzilla-daemon [this message] 2012-08-09 10:52 ` bugzilla-daemon 2012-08-09 11:04 ` bugzilla-daemon 2013-02-18 22:00 ` bugzilla-daemon 2013-02-19 10:40 ` bugzilla-daemon 2013-02-19 13:58 ` bugzilla-daemon
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