http://open-std.org/JTC1/SC22/WG21/docs/papers/2014/n4014.pdf

Discussed in Rapperswil 2014.

Voutilainen pointed out that it seems important to be able to express whether explicit operations are ok or not. Vandevoorde said there's a difference between conversions and initializations. Dennett pointed out that this proposal clashes with the direction of N3912, and showed an example of the different directions; N3912 makes copy vs. direct initialization more significant with auto, whereas the Josuttis proposal makes it less significant. Josuttis in addition mentioned that it's unfortunate that we have no guidelines for when to use explicit and when not, and that makes things difficult for the library.

Straw poll, accept the proposal:

SF: 1 F: 2 N: 6 A: 8 SA: 1

No consensus to adopt, closing as NAD.