X-Authentication-Warning: delorie.com: mail set sender to djgpp-bounces using -f From: Pedro Graca Newsgroups: comp.os.msdos.djgpp Subject: Re: pointers to structs Date: 14 Jul 2004 22:17:53 GMT Organization: home use Lines: 26 Message-ID: References: <1089842517 DOT 34974 AT proxy2 DOT srv DOT ualberta DOT ca> X-Trace: news.uni-berlin.de 3I8EKHaPI5CQAasEsbyQ8AV/r1wAiA1cbAYtz3HUNU55SOzdaA X-Location: Third rock from the Sun, Europe, Portugal, Coimbra User-Agent: slrn/0.9.8.0 (Linux) To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com [newbie answer, so it will be short] John Hanley wrote: (snip) > int main() > { > struct data_list * list; list is not initialized! > list->head = NULL; > list->tail = NULL; > } > > When I compile then run this, I get: "Exiting due to Signal SIGSEGV. Page > Fault at ..." > > Can I not assign NULL to these pointers? If I take the 2 assignments out, > it runs ok. You have no idea where you're putting those NULLs to. -- USENET would be a better place if everybody read: | to email me: use | http://www.catb.org/~esr/faqs/smart-questions.html | my name in "To:" | http://www.netmeister.org/news/learn2quote2.html | header, textonly | http://www.expita.com/nomime.html | no attachments. |