Re: [Boost-bugs] [Boost C++ Libraries] #6131: #define foreach BOOST_FOREACH causes weird compile error in certain circumstances with boost 1.48

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #6131: #define foreach BOOST_FOREACH causes weird compile error in certain circumstances with boost 1.48
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2012-10-02 12:07:49

#6131: #define foreach BOOST_FOREACH causes weird compile error in certain
circumstances with boost 1.48
-------------------------------+--------------------------------------------
  Reporter:  loonycyborg       |       Owner:  eric_niebler
      Type:  Bugs              |      Status:  closed      
 Milestone:  To Be Determined  |   Component:  foreach     
   Version:  Boost 1.50.0      |    Severity:  Problem     
Resolution:  fixed             |    Keywords:              
-------------------------------+--------------------------------------------

Comment (by michel):

 The following treatment does not solve the problem, but it slightly
 improves the situation:

 In `boost/multi_index/hashed_index.hpp`, change
 {{{
 /* Boost.Foreach compatibility */

 template<
   typename KeyFromValue,typename Hash,typename Pred,
   typename SuperMeta,typename TagList,typename Category
 >
 inline boost::mpl::true_* boost_foreach_is_noncopyable(
   boost::multi_index::detail::hashed_index<
     KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>*&,
   boost::foreach::tag)
 {
   return 0;
 }
 }}}
 into
 {{{
 #if !(!defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
 \
  || BOOST_WORKAROUND(BOOST_MSVC, >= 1310) && !defined(_PREFAST_)
 \
  || (BOOST_WORKAROUND(__GNUC__, == 4) && (__GNUC_MINOR__ <= 5) &&
 !defined(BOOST_INTEL) &&       \
 !defined(BOOST_CLANG))         \
  || (BOOST_WORKAROUND(__GNUC__, == 3) && (__GNUC_MINOR__ >= 4) &&
 !defined(BOOST_INTEL) &&       \
 !defined(BOOST_CLANG)))
 /* Boost.Foreach compatibility */

 template<
   typename KeyFromValue,typename Hash,typename Pred,
   typename SuperMeta,typename TagList,typename Category
 >
 inline boost::mpl::true_* boost_foreach_is_noncopyable(
   boost::multi_index::detail::hashed_index<
     KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>*&,
   boost::foreach::tag)
 {
   return 0;
 }

 #endif
 }}}
 and do the same thing for `boost/multi_index/ordered_index.hpp`,
 `boost/multi_index/random_access_index.hpp` and
 `boost/multi_index/sequenced_index.hpp`.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/6131#comment:17>
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