From: Andreas Schwab Date: Tue, 20 Aug 2013 23:01:32 GMT Subject: Re: CPPCheck found 24 high risk bugs in Git v.1.8.3.4 Message-ID: <87y57wnf03.fsf@igel.home> In-Reply-To: Erik Faye-Lund writes: > I don't see how it's undefined. It's using the memory that 'pos' > *points to* that is undefined, no? The difference between 'pos' and > 'str' should still be the same, it's not like realloc somehow > magically updates 'pos'... It does. Think of segmented architectures, where freeing a pointer invalidates its segment, so that even loading the value of the pointer traps. Probably no such architecture is in use any more, though. Andreas. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different."