C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  How to find at Runtime, if Created class object is instance          C++Talk.NET Forum Index -> C++ language (comp.lang.c++) View previous topic :: View next topic   Author Message Ami Guest Posted: Mon Feb 27, 2006 7:06 am    Post subject: How to find at Runtime, if Created class object is instance Hi All, I want to find at runtime for given class object, if it is a object of given class. For example: I have declared "ClassA" and i have created its instance "instA". Now at run time, how can i detect, if "instA" is object of "ClassA". Something like "is" operator in Delphi or C#. (e.g if( instA is ClassA) ) Thanks in advacne. Regards Back to top Ian Collins Guest Posted: Mon Feb 27, 2006 8:06 am    Post subject: Re: How to find at Runtime, if Created class object is insta Ami wrote: Quote: Hi All, I want to find at runtime for given class object, if it is a object of given class. For example: I have declared "ClassA" and i have created its instance "instA". Now at run time, how can i detect, if "instA" is object of "ClassA". Something like "is" operator in Delphi or C#. (e.g if( instA is ClassA) ) Look up typeid(). -- Ian Collins. Back to top Ami Guest Posted: Mon Feb 27, 2006 9:06 am    Post subject: Re: How to find at Runtime, if Created class object is insta Thanks a lot Ian for your help. Typeid solves my purpose as required. Thanks once again. Regards Back to top Tomás Guest Posted: Mon Feb 27, 2006 5:06 pm    Post subject: Re: How to find at Runtime, if Created class object is insta Ami posted: Quote: Hi All, I want to find at runtime for given class object, if it is a object of given class. For example: I have declared "ClassA" and i have created its instance "instA". Now at run time, how can i detect, if "instA" is object of "ClassA". Something like "is" operator in Delphi or C#. (e.g if( instA is ClassA) ) Thanks in advacne. Regards You always know the type of a variable/object -- just looks at its definition. If you're dealing with classes and inheritence, maybe take a look at "dynamic_cast". -Tomás 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.