Re: [Boost-bugs] [Boost C++ Libraries] #12293: boost::future::then lambda called before future is ready.

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #12293: boost::future::then lambda called before future is ready.
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2016-08-19 21:40:36

#12293: boost::future::then lambda called before future is ready.
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  Reporter:  Jeffrey.Gramowski@…  |      Owner:  viboes
      Type:  Bugs                 |     Status:  assigned
 Milestone:  To Be Determined     |  Component:  thread
   Version:  Boost 1.60.0         |   Severity:  Problem
Resolution:                       |   Keywords:  future then
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Comment (by viboes):

 I agree that there is a problem. But is is not that the unwrap must be
 done implicitly.

 Boost::future::then was defined before the C++ experimental
 std::experimental::future::then included in the TS and the original
 proposal behaved like Boost.Thread. Changing this will be a breaking
 change and people don't like that.

 The problem is that the future<future<void>> is implicitly convertible to
 future<void>, which must be explicit. I will see what happens if I define
 the constructor explicit.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/12293#comment:11>
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