C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  strange runtime error - I need help debuginng          C++Talk.NET Forum Index -> C++ language (comp.lang.c++) View previous topic :: View next topic   Author Message r.z. Guest Posted: Mon Dec 18, 2006 10:10 am    Post subject: strange runtime error - I need help debuginng My program behaves very strange. I keep getting the following error: 'The instruction at "some address" referenced memory at "some address". The memory could not be written"' The program consists of: int main( int argc, char* argv[] ) { //here is some third party function that configures graphic environment { app my_app; //this is local so that I'm sure it's destroyed before next step } //here is some third party function that cleans graphic environment return 0; } But when, instead of my_app object, I put there all of its data members (app class has no constructor or destructor), it gives me no error!! I don't know what to do. I don't know how to debug in Visual Studio and I don't know how wheteher it would help me understand what's going on since my program relies on some third party dll. Back to top John Carson Guest Posted: Mon Dec 18, 2006 10:10 am    Post subject: Re: strange runtime error - I need help debuginng "r.z." <gklkj (AT) hjkjhk (DOT) pl> wrote in message news:em5dea$mc6$1 (AT) atlantis (DOT) news.tpi.pl Quote: I commented out the third party functions and now I'm sure this error is caused by this local object. But when I put there its data members instead it gives me no error!! I didn't realise what newsgroup I was in when replying. You should ask questions like this in microsoft.public.vc.language or microsoft.public.vc.ide_general or comp.os.ms-windows.programmer.win32 -- John Carson Back to top r.z. Guest Posted: Mon Dec 18, 2006 10:10 am    Post subject: Re: strange runtime error - I need help debuginng I commented out the third party functions and now I'm sure this error is caused by this local object. But when I put there its data members instead it gives me no error!! Back to top Salt_Peter Guest Posted: Mon Dec 18, 2006 10:11 am    Post subject: Re: strange runtime error - I need help debuginng r.z. wrote: Quote: My program behaves very strange. I keep getting the following error: 'The instruction at "some address" referenced memory at "some address". The memory could not be written"' The program consists of: int main( int argc, char* argv[] ) { //here is some third party function that configures graphic environment { app my_app; //this is local so that I'm sure it's destroyed before next step } //here is some third party function that cleans graphic environment return 0; } But when, instead of my_app object, I put there all of its data members (app class has no constructor or destructor), it gives me no error!! I don't know what to do. I don't know how to debug in Visual Studio and I don't know how wheteher it would help me understand what's going on since my program relies on some third party dll. If your app class/struct didn't have a constructor or a destructor, your program would not be compileable, let alone run. The error above depicts trying to write to read-only memory. I can think of 10 or more ways i could purposefully generate such an error. We could be here until Christmas( year 2050 ) discussing what hypothetically might, or might not be happening. Notice: C++ programmers are notoriously pathetic at guessing. I'ld suggest trying over at a newsgroup that deals with Visual Studio and/or whatever proprietary GUI library you are using. Consult this list of possible newsgroups: [5.9] Which newsgroup should I post my questions? http://www.parashift.com/c++-faq-lite/how-to-post.html Back to top John Carson Guest Posted: Mon Dec 18, 2006 10:11 am    Post subject: Re: strange runtime error - I need help debuginng "r.z." <gklkj (AT) hjkjhk (DOT) pl> wrote in message news:em5dea$mc6$1 (AT) atlantis (DOT) news.tpi.pl Quote: I commented out the third party functions and now I'm sure this error is caused by this local object. But when I put there its data members instead it gives me no error!! You have two options: learn how to debug or post code here that is compileable and allows us to reproduce the error. Debugging this shouldn't be hard. Just hit F5 for starters (assuming you have a debug build). With luck, this will take you to the line with the error. If the line with the error is in some library rather than your code, and you are confident that the problem is in your code, then open the Call Stack window (you should find it in the menus under Debug->Windows). Do this with the Debugger still running. In the call stack, double click on the highest line that is in your own code. The problem should be near this line. -- John Carson 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.