[Bug libstdc++/49022] [C++0x][DR 2058] std::begin and std::end specialized for std::valarray with some operators are missing.

[paolo.carlini at oracle dot com]

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

--- Comment #26 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-06-14 
14:02:15 UTC ---
... among other things, std::valarray, at variance with the containers, does
*not* have member begin and end, thus I don't even think novice programmers may
have expectations about that.