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Showing content from https://cplusplus.github.io/LWG/issue1275 below:

Issue 1275: Creating and setting futures

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.

Section: 32.10 [futures] Status: Resolved Submitter: Jonathan Wakely Opened: 2009-11-22 Last modified: 2016-01-28

Priority: Not Prioritized

View all other issues in [futures].

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Discussion:

[futures.unique_future]/1 should be updated to mention async.

[futures.shared_future]/1 should also be updated for async. That paragraph also says

... Its value or exception can be set by use of a shared_future, promise (32.10.6 [futures.promise]), or packaged_task (32.10.10 [futures.task]) object that shares the same associated state.

How can the value be set by a shared_future?

99 [futures.atomic_future]/1 says

An atomic_future object can only be created by use of a promise (32.10.6 [futures.promise]) or packaged_task (32.10.10 [futures.task]) object.

which is wrong, it's created from a std::future, which could have been default-constructed. That paragraph should be closer to the text of [futures.shared_future]/1, and should also mention async.

[ 2010 Pittsburgh: Moved to NAD Editorial Resolved. Rationale added below. ]

Rationale:

Solved by N3058.

Proposed resolution:

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