gcc 4.9 now has support for n3696 (Runtime-sized arrays with automatic storage duration). n3662 says: In N3497 Runtime-sized arrays with automatic storage duration, Jens Maurer proposes arrays ...

Draft C++14 includes both runtime-sized arrays and the std::dynarray container. From what I can tell, the only real difference between the two is that std::dynarray has an STL interface (e.g., begi...