C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  using map item without assigning onw first?          C++Talk.NET Forum Index -> C++ language (comp.lang.c++) View previous topic :: View next topic   Author Message Gernot Frisch Guest Posted: Thu Oct 28, 2004 8:55 am    Post subject: using map item without assigning onw first? Can I do this: std::map<long, std::vector snapmap; long i=4, j=0; snapmap[j].push_back(i); -- -Gernot int main(int argc, char** argv) {printf ("%silto%c%cf%cgl%ssic%ccom%c", "ma", 58, 'g', 64, "ba", 46, 10);} ________________________________________ Looking for a good game? Do it yourself! GLBasic - you can do www.GLBasic.com Back to top John Harrison Guest Posted: Thu Oct 28, 2004 9:14 am    Post subject: Re: using map item without assigning onw first? "Gernot Frisch" <Me (AT) Privacy (DOT) net> wrote Quote: Can I do this: std::map<long, std::vector snapmap; long i=4, j=0; snapmap[j].push_back(i); Yes, using snapmap[j] will create a map entry using the default constructor for std::vector<long>. You then push back i onto that empty vector. john 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.