https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71010
Ubikovich <theubik at mail dot ru> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|INVALID |FIXED --- Comment #3 from Ubikovich <theubik at mail dot ru> --- 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?