Re: [Boost-bugs] [Boost C++ Libraries] #12319: `boost::container::flat_set` should be nothrow move constructible

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #12319: `boost::container::flat_set` should be nothrow move constructible
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2016-08-01 21:56:13

#12319: `boost::container::flat_set` should be nothrow move constructible
-------------------------------+------------------------
  Reporter:  beck.ct@…         |      Owner:  igaztanaga
      Type:  Bugs              |     Status:  closed
 Milestone:  To Be Determined  |  Component:  container
   Version:  Boost 1.61.0      |   Severity:  Problem
Resolution:  fixed             |   Keywords:
-------------------------------+------------------------
Changes (by igaztanaga):

 * status:  new => closed
 * resolution:   => fixed

Comment:

 Thanks for the report. I've revised the standard and several STL
 implementations, and they all agree that associative containers' move
 constructor can't be unconditionally noexcept since they need to move
 construct the comparison predicate from the source container. However,
 they can be noexcept if the Compare's move constructor is noexcept. The
 commit:

 https://github.com/boostorg/container/commit/225e2da77e65fa73a79b5acba1a8faf5e4abe25c


 revises all default and move constructors and tries to better specify the
 minimum conditions to mark them as noexcept.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/12319#comment:1>
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