Re: [Boost-bugs] [Boost C++ Libraries] #9711: future continuation called twice

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #9711: future continuation called twice
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-02-26 09:27:19

#9711: future continuation called twice
  Reporter: anonymous | Owner: viboes
      Type: Bugs | Status: assigned
 Milestone: Boost 1.56.0 | Component: thread
   Version: Boost 1.55.0 | Severity: Problem
Resolution: | Keywords: futures

Comment (by anonymous):

 If you want to start the continuation in the get() of futr2 that would
 mean that this will not start the continuation at all:

 auto futr1 = promise1.get_future();

 auto futr2 = futr1.then({});


 Is this intended?
 (Please note that the only get() call here is inside the continuation
 What about this:

 auto futr1 = promise1.get_future();

 auto futrLast = futr1.then({}).then({}).then({});


 Do I always have to keep track which future is at the end of the line and
 call its get()?
 My main use-case would be to not block at all, but this way I am forced to
 call get() and thus block in it.

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