[Bug c++/53573] template type dependent name resolution broken

[keean@fry-it.com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53573

--- Comment #21 from Keean Schupke <keean@fry-it.com> 2012-06-05 17:01:01 UTC ---
(In reply to comment #20)

Yes, once again sorry. Obviously not GCC's problem for implementing the
standard correctly, but this causes problems producing elegant datatype generic
code. For example if a concept is defined in a library (using Boost Concept
Checking for example) and I want to make 'int' comply to that concept, I would
have to declare the new int methods before including the library. This seems
very odd in end user code. 

In this case there is nothing intuitively wrong with the way GCC was doing it -
it was not difficult for the compiler authors to implement, and nor did it lead
to incorrect or hard to understand code, in fact it worked very well for
generic programming.

Is there any chance this 'feature' of GCC could be kept as a g++ specific
extension in 'gnu++11' mode, as I think the old behaviour is an improvement
over that suggested in the standard, and GCC provides other extensions to
standard behaviour where it is useful.


> I'm under the impression that the bug reports using the word 'broken' are the
> ones most likely broken, err invalid. Maybe just another manifestation of the
> illusion of confidence, well known to the psychologjsts? (for a very nice intro
> see, eg, Chabris & Simons, 'The invisible gorilla', Ch 3)