C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  segmentation fault          C++Talk.NET Forum Index -> C++ language (comp.lang.c++) View previous topic :: View next topic   Author Message Chris Guest Posted: Sun Aug 13, 2006 9:10 am    Post subject: segmentation fault I'm compiling the following code with GCC 4.1.0 (on fedora 6 I think). It compiles fine, then when I run it it simply prints "segmentation fault". int main() { vector<vector<string> > yo; yo[0][0] = "hello"; cout << yo[0][0]; return 0; } 1. What's causing this? I'm using the object "vector<vector<string> >" so I can split a string into lines, then split the lines into words so that "hello there\nTommy Boy" becomes [ ["hello", "there"], ["Tommy", "Boy"] ] 2. Should I do this a different way? Thanks for any help! Back to top Ian Collins Guest Posted: Sun Aug 13, 2006 9:10 am    Post subject: Re: segmentation fault Chris wrote: Quote: I'm compiling the following code with GCC 4.1.0 (on fedora 6 I think). It compiles fine, then when I run it it simply prints "segmentation fault". int main() { vector<vector<string> > yo; yo[0][0] = "hello"; cout << yo[0][0]; return 0; } 1. What's causing this? Surely this must be an FAQ by now, if not, look back though the past week or so of postings. You can't use operator [] on an empty vector. -- Ian Collins. Back to top Jim Langston Guest Posted: Sun Aug 13, 2006 9:10 am    Post subject: Re: segmentation fault "Chris" <chrispatton (AT) gmail (DOT) com> wrote in message news:1155444123.919593.158580 (AT) m79g2000cwm (DOT) googlegroups.com... Quote: I'm compiling the following code with GCC 4.1.0 (on fedora 6 I think). It compiles fine, then when I run it it simply prints "segmentation fault". int main() { vector<vector<string> > yo; yo[0][0] = "hello"; cout << yo[0][0]; return 0; } 1. What's causing this? I'm using the object "vector<vector<string> >" so I can split a string into lines, then split the lines into words so that "hello there\nTommy Boy" becomes [ ["hello", "there"], ["Tommy", "Boy"] ] 2. Should I do this a different way? Thanks for any help! Your yo vector is empty. You need to insert into it before you can use it. std::vector mama; mama.push_back( "hello" ); yo.push_back( mama ); Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         C++Talk.NET Forum Index -> C++ language (comp.lang.c++) All times are GMT Page 1 of 1   Jump to: Select a forum C/C++----------------C LanguageC Language (Moderated)C++ Language (Moderated)C++ language (comp.lang.c++)C++ language, library and standards Non-English C/C++ Newsgroups----------------C++ (German)C++ (French)  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © 2001, 2006 phpBB Group SEO toolkit © 2004-2006 webmedic.