P0813 construct() shall Return the Replaced Address

[wg21bot]

P0813R0 construct() shall Return the Replaced Address (Nicolai Josuttis)

[tituswinters]

LEWG in Kona:
Forward to LWG for C++20.
SF F N A SA
0 2 5 6 4
(Largely concerned about changing the API of Allocator)

Ask CWG to fix the language wrt. UB after placement new (both in cases of reusing storage (launder-like cases) as well as vector’s construct).
SF F N A SA
17 4 0 1 0

[wg21bot]

P0813R1 construct() shall Return the Replaced Address (Nicolai Josuttis)