This page is a snapshot from the LWG issues list, see the Library Active Issues List for more information and the meaning of Resolved status.

1165. Unneeded promise move constructor

Section: 33.10.6 [futures.promise] Status: Resolved Submitter: LWG Opened: 2009-06-28 Last modified: 2016-01-28

Priority: Not Prioritized

View other active issues in [futures.promise].

View all other issues in [futures.promise].

View all issues with Resolved status.


Addresses UK 343


The move constructor of a std::promise object does not need to allocate any memory, so the move-construct-with-allocator overload of the constructor is superfluous.


Remove the constructor with the signature template <class Allocator> promise(allocator_arg_t, const Allocator& a, promise& rhs);


Create an issue. Detlef will look into it. Will solicit feedback from Pablo. Note that "rhs" argument should also be an rvalue reference in any case.

[ 2009-07 Frankfurt ]

Pending a paper from Anthony Williams / Detlef Vollmann.

[ 2009-10 Santa Cruz: ]

NAD EditorialResolved. Adressed by N2997.

Proposed resolution: