c++.beta - [bug] DMC 8.49 enum lookup through class derived from template parameter
- Sean Kelly (29/29) Oct 23 2006 I believe this lookup should succeed as it does when C explicitly
- Christof Meerwald (7/9) Oct 23 2006 No, this is a feature (two-phase name lookup) - you can disable this fea...
- Sean Kelly (8/14) Oct 23 2006 Oops... my actual code was a tad different than what I posted:
I believe this lookup should succeed as it does when C explicitly derives from B. C:\code\src\gen\test>type test.cpp class B { protected: enum { ZERO = 0 }; }; template<class T> class C : T { public: C() : val( ZERO ) {} private: int val; }; void main() { C<B> d; } C:\code\src\gen\test>dmc test.cpp test.cpp(15) : Error: undefined identifier 'ZERO' test.cpp(26) : Error: expression expected Fatal error: premature end of source file --- errorlevel 1 C:\code\src\gen\test>
Oct 23 2006
On Mon, 23 Oct 2006 09:59:32 -0700, Sean Kelly wrote:I believe this lookup should succeed as it does when C explicitly derives from B.No, this is a feature (two-phase name lookup) - you can disable this feature with -Ad though. Christof -- http://cmeerw.org sip:cmeerw at cmeerw.org mailto:cmeerw at cmeerw.org xmpp:cmeerw at cmeerw.org
Oct 23 2006
Christof Meerwald wrote:On Mon, 23 Oct 2006 09:59:32 -0700, Sean Kelly wrote:Oops... my actual code was a tad different than what I posted: template<class T> class B {...}; template<class T> class C : B<T> { ... }; But the dependent name lookup rules still obviously apply. Next time I'll spend more time with the spec rather than testing against other compilers... or at least test against Comeau. Thanks! SeanI believe this lookup should succeed as it does when C explicitly derives from B.No, this is a feature (two-phase name lookup) - you can disable this feature with -Ad though.
Oct 23 2006