C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Embedded class' or VC++7 compiler's problem ?          C++Talk.NET Forum Index -> C++ Language (Moderated) View previous topic :: View next topic   Author Message N4M Guest Posted: Wed Sep 29, 2004 9:40 am    Post subject: Embedded class' or VC++7 compiler's problem ? Dear, I have codes as follows: template<class T> class A { public: // embedded class class E; public: // types typedef E TE; public:// member functions TE somefunc(); private: // member data //---------------------------- // embedded class public: class E { //.....// }; }; // template<class T> A<T>::TE A<T>::somefunc() {....} When I compile these codes with VC++.NET, there are error messages: c:DATAC++Commonlist.h(389): error C2143: syntax error : missing ';' before 'list_base<TNValue>::insert' c:DATAC++Commonlist.h(389): error C2501: 'list_base<TNValue>::iterator' : missing storage-class or type specifiers // TNValue = T, list_base = A, iterator = TE The same codes are compilled without problem by VC++ 6. How come? Is there something not-so-good with my embedded class use? Do you recommend embedded classes or have other better solutions? Thansk for your time. Nguyen Mai [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Alberto Barbati Guest Posted: Thu Sep 30, 2004 10:34 am    Post subject: Re: Embedded class' or VC++7 compiler's problem ? N4M wrote: Quote: template<class T A seems a typename is missing here. It shoud be: template<class T> typename A<T>::TE A<T>::somefunc() {....} ^^^^^^^^ Quote: When I compile these codes with VC++.NET, there are error messages: c:DATAC++Commonlist.h(389): error C2143: syntax error : missing ';' before 'list_base<TNValue>::insert' c:DATAC++Commonlist.h(389): error C2501: 'list_base<TNValue>::iterator' : missing storage-class or type specifiers When I compile the above code, in addition to those error messages I also get this warning: warning C4346: 'A<T>::TE' : dependent name is not a type prefix with 'typename' to indicate a type that clearly hints to the right answer. You did *not* turn off warnings, didn't you? ;-) Quote: The same codes are compilled without problem by VC++ 6. How come? VC++ 6 was not conformant about the use of the typename keyword and incorrectly allowed a relaxed parsing. Hope it helps, Alberto [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top James Hopkin Guest Posted: Fri Oct 01, 2004 5:23 pm    Post subject: Re: Embedded class' or VC++7 compiler's problem ? [email]dnguyenk (AT) yahoo (DOT) com[/email] (N4M) wrote in message news:<6e8e8a14.0409280855.4a6e8841 (AT) posting (DOT) google.com>... Quote: How come? Is there something not-so-good with my embedded class use? Do you recommend embedded classes or have other better solutions? The code you posted is fine. The error message involves a list of some sort. There is no list mentioned in the code you posted. Can you post more of the relevant code? James [ 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.