[Bug libstdc++/49022] [C++0x] std::begin and std::end specialized for std::valarray with some operators are missing.

[gdr at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49022

--- Comment #7 from Gabriel Dos Reis <gdr at gcc dot gnu.org> 2011-05-17 15:14:04 UTC ---
(In reply to comment #6)
> Double Sigh! I was hoping very few overloads would be enough... If we are
> really talking about many I would be in favor of raising the issue, indeed.

The issue is even trickier than that:  If you were allowed to write those
functions, what would begin() and end() return?  a pointer into a 
soon-to-be-destroyed valarray? 

I think this is a defect in the standard.  I just sent an email.

-- Gaby