Date: Tue, 27 May 2003 14:58:08 +0100 From: Tony Finch <dot@dotat.at> To: gvs@rinet.ru Cc: freebsd-bugs@freebsd.org Subject: Re: bin/52691: str[n][case]cmp may cause segmentation violationwith NULL pointers passed Message-ID: <E19Kexs-0003PR-00@chiark.greenend.org.uk> In-Reply-To: <20030527121942.W33922@road.demos.su> References: <200305262053.h4QKr3GB026031@freefall.freebsd.org> <200305262053.h4QKr3GB026031@freefall.freebsd.org>
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Seva Gluschenko <gvs@rinet.ru> wrote: > >Well, sir, can you please quote me some ISO C89 or another standard >which allows str*cmp not to care about NULL pointers? ISO/IEC 9899:1990 says in section 7.1.7 Use of library functions: "If an argument to a function has an invalid value (such as a value outside the domain of the function, or a pointer outside the address space of the program, or a null pointer), the behaviour is undefined." Tony. -- f.a.n.finch <dot@dotat.at> http://dotat.at/ COLWYN BAY TO THE MULL OF GALLOWAY INCLUDING THE ISLE OF MAN: SOUTHEAST 2 OR 3 INCREASING SOUTHWEST 3 OR 4, LOCALLY 5 FOR A TIME. PATCHY RAIN AND DRIZZLE WITH MIST PATCHES. MODERATE. SLIGHT.
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