BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Re: Borland compiler bug? Problem overloading templatized me          BorlandTalk.com Forum Index -> C++ Builder (Language C++) View previous topic :: View next topic   Author Message Thomas Maeder [TeamB] Guest Posted: Thu Aug 18, 2005 8:53 pm    Post subject: Re: Borland compiler bug? Problem overloading templatized me hall <XandreashX (AT) fy (DOT) chalmers.se> writes: Quote: Is this a bug in the Borland compiler or is this the correct behaviour? To be able to tell for sure, I'd have to see a minimal, complete program. But your description sounds as if there is indeed a bug int the Borland compiler. Quote: In either case, do you think that changing the member into a friend function is a good workaround Not just that. I think making it a non-member would be better even if it didn't circumvent the compiler bug. It's hard to justify this opinion, but the operation in question seems somewhat more related to the type of the second argument than to STR. Quote: or may I end up in some other problem? Hardly. Most stream input operators are implemented as non-member functions. Back to top hall Guest Posted: Fri Aug 19, 2005 6:51 am    Post subject: Re: Borland compiler bug? Problem overloading templatized me Thomas Maeder [TeamB] wrote: Quote: hall <XandreashX (AT) fy (DOT) chalmers.se> writes: To be able to tell for sure, I'd have to see a minimal, complete program. But your description sounds as if there is indeed a bug int the Borland compiler. Thanks for your reply, although it seems I never get my first post right. Here is the code that I thought I added to the bottom of my first post. There may be small differences to the code I described in the first post, but it shows the same behaviour. regards hall //---------------- #include <iostream> struct STR { template <class tType> STR& operator >> ( tType & ); //template <class tType> friend STR & operator >> ( STR &, tType & ); }; template <class tType> STR& STR::operator >>( tType & obj) { std::cout << "MEMBER ***** STR::operator >> (tType obj)n"; return *this; } //template <class tType> //STR & operator >> ( STR & s, tType & a ){ // std::cout << "STAND-ALONE **** STR operator >> (STR &, tType &)n"; // return s; //} template <class tType> class Array3d; template <class tType> STR & operator >> ( STR &, Array3d<tType> & ); template <class tType> class Array3d { friend STR & operator >> <>( STR & s, Array3d<tType> & a ); }; template <class tType> STR & operator >> ( STR & s, Array3d<tType> & array ) { std::cout << "STAND-ALONE **** STR & operator >> (STR &, Array3d<tType> & )n"; return s; } int main() { STR in; Array3d<int> array; std::cout << "Operator >> for Array3dn"; in >> array; std::cout << "Operator >> for intn"; int i(3); in >> i; return 0; } Back to top Hendrik Schober Guest Posted: Fri Aug 19, 2005 7:30 am    Post subject: Re: Borland compiler bug? Problem overloading templatized me hall <XandreashX (AT) fy (DOT) chalmers.se> wrote: Quote: Thomas Maeder [TeamB] wrote: hall <XandreashX (AT) fy (DOT) chalmers.se> writes: To be able to tell for sure, I'd have to see a minimal, complete program. But your description sounds as if there is indeed a bug int the Borland compiler. Thanks for your reply, although it seems I never get my first post right. Here is the code that I thought I added to the bottom of my first post. There may be small differences to the code I described in the first post, but it shows the same behaviour. Comeau Online () has this Comeau C/C++ 4.3.3 (Aug 6 2003 15:13:37) for ONLINE_EVALUATION_BETA1 Copyright 1988-2003 Comeau Computing. All rights reserved. MODE:strict errors C++ to say to your code, so I'd think that, if BCC does't accept the code, it's a bug in BCC. (I probably wouldn't trust Comeau with my life, but I would at least think about it...) Quote: regards hall [...] Schobi -- [email]SpamTrap (AT) gmx (DOT) de[/email] is never read I'm Schobi at suespammers dot org "Coming back to where you started is not the same as never leaving" Terry Pratchett Back to top Hendrik Schober Guest Posted: Fri Aug 19, 2005 7:39 am    Post subject: Re: Borland compiler bug? Problem overloading templatized me Hendrik Schober <SpamTrap (AT) gmx (DOT) de> wrote: Quote: [...] Comeau Online () has this Comeau C/C++ 4.3.3 (Aug 6 2003 15:13:37) for ONLINE_EVALUATION_BETA1 Copyright 1988-2003 Comeau Computing. All rights reserved. MODE:strict errors C++ to say to your code [...] ...which means, it found no errors. Sorry for that. Schobi -- [email]SpamTrap (AT) gmx (DOT) de[/email] is never read I'm Schobi at suespammers dot org "Coming back to where you started is not the same as never leaving" Terry Pratchett Back to top hall Guest Posted: Fri Aug 19, 2005 9:19 am    Post subject: Re: Borland compiler bug? Problem overloading templatized me Hendrik Schober wrote: Quote: Comeau Online () has this Comeau C/C++ 4.3.3 (Aug 6 2003 15:13:37) for ONLINE_EVALUATION_BETA1 Copyright 1988-2003 Comeau Computing. All rights reserved. MODE:strict errors C++ to say to your code, so I'd think that, if BCC does't accept the code, it's a bug in BCC. (I probably wouldn't trust Comeau with my life, but I would at least think about it...) But this only means that the code compiles without errors, just like it does in both BCB6 and VS.net. It does not say which function it calls when one writes STR s; Array3d<int> a; s >> a; does it? I don't know much about Comeau, so please correct me if I'm wrong. regards hall Back to top Hendrik Schober Guest Posted: Fri Aug 19, 2005 10:10 am    Post subject: Re: Borland compiler bug? Problem overloading templatized me hall <XandreashX (AT) fy (DOT) chalmers.se> wrote: Quote: [...] But this only means that the code compiles without errors, just like it does in both BCB6 and VS.net. [...] Ouch. I should have read more thoroughly. Sorry. Quote: hall Schobi -- [email]SpamTrap (AT) gmx (DOT) de[/email] is never read I'm Schobi at suespammers dot org "Coming back to where you started is not the same as never leaving" Terry Pratchett Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         BorlandTalk.com Forum Index -> C++ Builder (Language C++) All times are GMT Page 1 of 1   Jump to: Select a forum C++ Builder Newsgroups----------------C++ BuilderC++ Builder (ActiveX)C++ Builder (Announcements)C++ Builder (Command Line Tools)C++ Builder DatabasesC++ Builder Databases (ADO)C++ Builder Databases (Desktop)C++ Builder Databases (InterBase Express)C++ Builder Databases (Multi-Tier)C++ Builder Databases (SQL Servers)C++ Builder (Graphics)C++ Builder (IDE)C++ Builder (Internet)C++ Builder (Internet Socket)C++ Builder (Internet Web)C++ Builder (Jobs)C++ Builder (Language)C++ Builder (Language C++)C++ Builder (Compatibility with MFC)C++ Builder (Native API)C++ Builder (Non-Technical)C++ Builder (Students)C++ Builder (Third Party Tools)C++ Builder (Upgrade)C++ Builder (VCL)C++ Builder (VCL Components Usage)C++ Builder (VCL Components Development)C++ Builder (VCL Usage)C++ Builder (WinAPI)C++ Builder Installation Delphi Newsgroups----------------Delphi (General)Delphi ActiveX Controls UsageDelphi ActiveX Controls DevelopmentDelphi As400Delphi DatabasesDelphi Databases (ADO)Delphi Databases (dbExpress)Delphi Databases (Desktop)Delphi Databases (InterBase Express)Delphi Databases (Multi-Tier)Delphi Databases (SQL Servers)Delphi DeploymentDelphi GraphicsDelphi IDEDelphi InternationalizationDelphi InternetDelphi Internet Isapi-WebBrokerDelphi Internet WebSnapDelphi Internet WinsockDelphi JobsDelphi Language BASMDelphi Language ObjectPascalDelphi Model Driven Architecture (General)Delphi Model Driven Architecture (Third Party)Delphi MultimediaDelphi Native APIDelphi Non-TechnicalDelphi ObjectPascalDelphi OLE AutomationDelphi OO designDelphi OpenToolsAPIDelphi Reporting-ChartingDelphi RTLDelphi StudentsDelphi TeamSourceDelphi Thirdparty ToolsDelphi Thirdparty Tools (General)Delphi Thirdparty Tools (IntraWeb)Delphi Thirdparty Tools (RaveReports)Delphi UpgradeDelphi VCLDelphi VCL ComponentsDelphi VCL Components UsingDelphi VCL Components WritingDelphi WebServices SOAPDelphi WinAPIDelphi XMLDelphi Installationcomp.lang.pascal.delphi.components.misccomp.lang.pascal.delphi.components.usagecomp.lang.pascal.delphi.components.writingcomp.lang.pascal.delphi.databasescomp.lang.pascal.delphi.misccomp.sources.delphi JBuilder Newsgroups----------------JBuilderJBuilder AnnouncementsJBuilder Applet IssuesJBuilder As400JBuilder CompilerJBuilder CORBA/RMIJBuilder DatabasesJBuilder DB SwingJBuilder DebuggerJBuilder DeploymentJBuilder DocumentationJBuilder EnterpriseJBuilder HandheldJBuilder IDEJBuilder JavaJBuilder JavaAPIJBuilder Java LanguageJBuilder Java SwingJBuilder Java BeansJBuilder Java Beans UsageJBuilder Java Beans DevelopmentJBuilder JBCLJBuilder JDataStoreJBuilder JobsJBuilder LinuxJBuilder MacintoshJBuilder & MobileSetJBuilder MultiLingual AppsJBuilder Non-TechnicalJBuilder OpenToolsJBuilder Servlets (JSP)JBuilder StudentsJBuilder Team DevelopmentJBuilder Thirdparty ToolsJBuilder UpgradeJBuilder Installation InterBase Newsgroups----------------InterBaseInterBase Bug DiscussionInterBase GeneralInterBase IBConsoleInterBase OpenSourceInterBase ReplicationInterBase SQLInterBase ThirdpartyInterBase Installation Miscellaneous Borland Newsgroups----------------AppCenterAppServerEnteraVisiBroker  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.