Proposed resolution:

Resolved 2011-03 Madrid meeting by paper N3278

Proposed resolution:

Resolved 2011-03 Madrid meeting by paper N3278

According to [futures.task.members] p. 7 bullet 2:

packaged_task& operator=(packaged_task&& other);

7 Effects:

• [...]

• packaged_task<R, ArgTypes...>(other).swap(*this).

The argument other given to the move constructor is an lvalue and must be converted into an rvalue via appropriate usage of std::move.

Proposed Resolution

The suggested wording changes are against the working draft N3242.

1. Change [futures.task.members] p. 7 bullet 2 as indicated:

   packaged_task& operator=(packaged_task&& other);
   

   7 Effects:
   

   • [...]

   • packaged_task(std::move(other)).swap(*this).