Re: [Boost-bugs] [Boost C++ Libraries] #9334: Boost 1.55.0 beta1: circular_buffer incompatible with shared memory allocators?

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #9334: Boost 1.55.0 beta1: circular_buffer incompatible with shared memory allocators?
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-12-03 12:20:49

#9334: Boost 1.55.0 beta1: circular_buffer incompatible with shared memory
allocators?
-------------------------------------+-------------------------------------
  Reporter:  Dr Leonid Timochouk     |      Owner:  apolukhin
  <L.Timochouk@…>                    |     Status:  new
      Type:  Bugs                    |  Component:  circular_buffer
 Milestone:  To Be Determined        |   Severity:  Regression
   Version:  Boost 1.55.0            |   Keywords:  circular buffer
Resolution:                          |  interprocess shared memory
                                     |  allocator
-------------------------------------+-------------------------------------

Comment (by apolukhin):

 This issue is not as easy as it looks like:

 * Replacing placement new with allocator's `construct()` breaks move
 emulation under C++03, where `construct` accepts parameter by const
 reference, while Boost.Move requires nonconst reference.

 * Older versions of circular buffer did not work well in DEBUG mode:
 `std::memset` was attempting to convert `typename Allocator::pointer` to
 `void*`.

 Attached a patch that fixes the issue. Will be applied as soon as the GIT
 migration will be finished.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/9334#comment:9>
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