Re: [Boost-bugs] [Boost C++ Libraries] #4750: is_convertible_basic_impl causes compile error when used inside OpenMP loop

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #4750: is_convertible_basic_impl causes compile error when used inside OpenMP loop
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-10-19 09:14:06

#4750: is_convertible_basic_impl causes compile error when used inside OpenMP loop
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  Reporter:  therealremi@…          |       Owner:  johnmaddock               
      Type:  Bugs                   |      Status:  closed                    
 Milestone:  To Be Determined       |   Component:  type_traits               
   Version:  Boost 1.44.0           |    Severity:  Problem                   
Resolution:  wontfix                |    Keywords:  OpenMP, type traits, graph
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Changes (by johnmaddock):

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

Comment:

 Here's the thing - I don't see that there is anything we can do at out end
 to fix this as private/shared attribute can only be added in the OMP
 declaration?

 For example adding

 {{{boost::detail::is_convertible_basic_impl<boost::detail::iterator_category_with_traversal<std::input_iterator_tag,boost::random_access_traversal_tag>
 &, std::input_iterator_tag>::_m_from}}}

 to the shared list in your OMP declaration fixes the compile.

 Of course that then makes your code depend on an implementation detail,
 which it clearly shouldn't do :-(

 To be honest I don't understand why MSVC is complaining here, given that
 it's producing an error for something that clearly is not used as a
 variable in the loop, GCC compiles your code just fine BTW with g++ -omp.

 Closing for now since I can't see how we ''can'' fix, please reopen if
 there is a fix we can apply at our end.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4750#comment:2>
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