C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Why basic_istream's operator function didn't use template?          C++Talk.NET Forum Index -> C++ language, library and standards View previous topic :: View next topic   Author Message madmanahong Guest Posted: Mon Mar 06, 2006 4:15 pm    Post subject: Why basic_istream's operator function didn't use template? Why basic_istream's operator function didn't use template? It define a every function for a every type. example: basic_istream& operator >> ( int& val ); basic_istream& opertaor >> ( long& val ); why not like this? template< T > basic_istream& operator >>( T& t ); --- [ comp.std.c++ is moderated. To submit articles, try just posting with ] [ your news-reader. If that fails, use mailto:std-c++@ncar.ucar.edu ] [ --- Please see the FAQ before posting. --- ] [ FAQ: http://www.comeaucomputing.com/csc/faq.html ] Back to top Dietmar Kuehl Guest Posted: Mon Mar 06, 2006 6:06 pm    Post subject: Re: Why basic_istream's operator function didn't use templat madmanahong wrote: Quote: Why basic_istream's operator function didn't use template? Because the input operators are not really generic and have quite different implementations. In addition, only a subset of all possibly input functions is actually defined, thereby avoiding ambiguities e.g. when a user also defines an input operator for a user defined type. -- <mailto:dietmar_kuehl (AT) yahoo (DOT) com> <http://www.dietmar-kuehl.de/> <http://www.eai-systems.com> - Efficient Artificial Intelligence --- [ comp.std.c++ is moderated. To submit articles, try just posting with ] [ your news-reader. If that fails, use mailto:std-c++@ncar.ucar.edu ] [ --- Please see the FAQ before posting. --- ] [ FAQ: http://www.comeaucomputing.com/csc/faq.html ] 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, library and standards 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.