N3639
Runtime-sized arrays with automatic storage duration (revision 5)
Added runtime-sized arrays with automatic storage; reverted at Chicago 2013 to the Array Extensions TS. Applied in N3690/N3691; later removed from the C++14 WP at Chicago (LWG Motion 10, moved to Array Extensions TS).; reverted at 2013-09 Chicago; moved to the Array Extensions TS.