[Boost-bugs] [Boost C++ Libraries] #9396: circular_buffer + gil compiler error

Subject: [Boost-bugs] [Boost C++ Libraries] #9396: circular_buffer + gil compiler error
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-11-15 12:34:49

#9396: circular_buffer + gil compiler error
---------------------------------------+-----------------------------
 Reporter:  g.kuehnert <g.kuehnert@…>  |      Owner:  jano_gaspar
     Type:  Bugs                       |     Status:  new
Milestone:  To Be Determined           |  Component:  circular_buffer
  Version:  Boost 1.55.0               |   Severity:  Regression
 Keywords:                             |
---------------------------------------+-----------------------------
 When 'boost/gil/bit_aligned_pixel_iterator.hpp' is included, the compiler
 selects for whatever reason an std::uninitialized_copy overload from the
 gil header instead of boost::cb_detail::uninitialized_copy within
 boost::cb_detail::uninitialized_move_if_noexcept_impl
 (boost/circualr_buffer/details.hpp) for types with
 !boost::is_nothrow_move_constructible.
 A workaround (solution?) is to fully qualify the call to
 boost::cb_detail::uninitialized_copy, but why the std overload gets even
 selected? Is this a compiler bug? Or a gil problem?

 Tested on: Windows 7 SP1 x64 + MSVC 2010 SP1

 {{{
 #include <boost/circular_buffer.hpp>
 #include <boost/gil/bit_aligned_pixel_iterator.hpp>     // comment this to
 resolve

 struct Foo
 {
         Foo(const Foo&) {}
 };

 int main(int, char*[])
 {

 #if 1

         boost::circular_buffer<Foo> buffer;

         buffer.set_capacity(42);

 #endif

 #if 0   // minimum example

         typedef boost::cb_details::iterator<
                 boost::circular_buffer<int>
                 , boost::cb_details::nonconst_traits<
                         std::allocator<int>
                 >
         > InputIterator;

 boost::cb_details::uninitialized_move_if_noexcept_impl<int>(InputIterator(),
 InputIterator(), (int*)nullptr, boost::false_type());

 #endif

         return 0;
 }
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/9396>
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