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1160. future_error public constructor is 'exposition only'

Section: 33.10.4 [futures.future.error] Status: Resolved Submitter: LWG Opened: 2009-06-28 Last modified: 2021-06-06

Priority: Not Prioritized

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Addresses UK 331


Not clear what it means for a public constructor to be 'exposition only'. If the intent is purely to support the library calling this constructor then it can be made private and accessed through friendship. Otherwise it should be documented for public consumption.


Declare the constructor as private with a note about intended friendship, or remove the exposition-only comment and document the semantics.


Create an issue. Assigned to Detlef. Suggested resolution probably makes sense.

[ 2009-07 Frankfurt ]

Pending a paper from Anthony Williams / Detlef Vollmann.

[ 2009-10-14 Pending paper: N2967. ]

[ 2009-10 Santa Cruz: ]

NAD EditorialResolved. Solved by N2997.

Proposed resolution: