[Bug c++/71010] error: 'begin' was not declared in this scope

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71010

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|FIXED                       |INVALID

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Ubikovich from comment #3)
> But since C++14 cbegin invoke std::begin:
> 
> // http://en.cppreference.com/w/cpp/iterator/begin
> template< class C >
> constexpr auto cbegin( const C& c ) -> decltype(std::begin(c));
> (3) 	 	(since C++14)
> 
> Then in what namespace should be user-defined begin/end?

In the same as the class so ADR (argument dependent resolution) can find it.