C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  dynamic_cast          C++Talk.NET Forum Index -> C++ Language (Moderated) View previous topic :: View next topic   Author Message Kapil Khosla Guest Posted: Sat Aug 23, 2003 8:20 am    Post subject: dynamic_cast Hi, I have a small code in which I am playing with dynamic_cast. It gives me a runtime exception and says unhandled exception in kernel32.dll , non rtti object. Kapil class BaseClass { public: virtual void f(void) const {cout <<"Basen";} }; class DerivedClass : public BaseClass { public: void f(void) const { cout << "Derivedn"; } }; void test(BaseClass *); int main() { BaseClass base; DerivedClass derived; test(&base); test(&derived); cin.get(); return 0; } void test(BaseClass *basePtr) { if(dynamic_cast cout << " Derived Class Object" << endl; } // It works if I change DerivedClass to BaseClass [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Maciej Sobczak Guest Posted: Sat Aug 23, 2003 2:49 pm    Post subject: Re: dynamic_cast Hi, Kapil Khosla wrote: Quote: I have a small code in which I am playing with dynamic_cast. It gives me a runtime exception and says unhandled exception in kernel32.dll , non rtti object. In some compilers, RTTI is not enabled by default. Try to find appropriate compiler switch (or the option in project settings) so that RTTI is enabled. The code itself looks OK and works fine on g++ 3.2. -- Maciej Sobczak http://www.maciejsobczak.com/ Distributed programming lib for C, C++, Python & Tcl: http://www.maciejsobczak.com/prog/yami/ [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] 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 (Moderated) 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.