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promise::set_value
Section: 33.10.6 [futures.promise] Status: Resolved Submitter: Jonathan Wakely Opened: 2009-11-22 Last modified: 2016-01-28
Priority: Not Prioritized
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Discussion:
The definitions of promise::set_value
need tidying up, the
synopsis says:
// setting the result void set_value(const R& r); void set_value(see below);
Why is the first one there? It implies it is always present for all specialisations of promise, which is not true.
The definition says:
void set_value(const R& r); void promise::set_value(R&& r); void promise<R&>::set_value(R& r); void promise<void>::set_value();
The lack of qualification on the first one again implies it's present for all specialisations, again not true.
[
2010 Pittsburgh: Moved to NAD EditorialResolved. Rationale added below.
]
Rationale:
Solved by N3058.
Proposed resolution:
Change the synopsis in 33.10.6 [futures.promise]:
// setting the resultvoid set_value(const R& r);void set_value(see below);
And the definition be changed by qualifying the first signature:
void promise::set_value(const R& r); void promise::set_value(R&& r); void promise<R&>::set_value(R& r); void promise<void>::set_value();