[Boost-bugs] [Boost C++ Libraries] #2134: Namespace conflict in implementation of Boost.Integer

Subject: [Boost-bugs] [Boost C++ Libraries] #2134: Namespace conflict in implementation of Boost.Integer
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2008-07-21 22:49:23

#2134: Namespace conflict in implementation of Boost.Integer
----------------------------------------------+-----------------------------
 Reporter:  dlwalker                          |       Owner:  dlwalker
     Type:  Bugs                              |      Status:  new     
Milestone:  Boost 1.36.0                      |   Component:  integer 
  Version:  Boost Development Trunk           |    Severity:  Problem 
 Keywords:  integer namespace integer_traits  |  
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 This is based off the thread starting at
 <http://lists.boost.org/Archives/boost/2008/07/139840.php>.

 In "[source:trunk/boost/integer.hpp_at_47408 boost/integer.hpp]", class
 templates in the `boost::detail` namespace refer to an unadorned
 `integer_traits` template.  The template referenced is meant to be
 `boost::integer_traits` in
 "[source:trunk/boost/boost/integer_traits.hpp_at_32576
 boost/integer_traits.hpp]".  However, a `boost::detail::integer_traits`
 template exists in
 "[source:trunk/boost/boost/detail/numeric_traits.hpp_at_24446
 boost/detail/numeric_traits.hpp]".  This latter template gets priority as
 the choice of what the unadorned `integer_traits` mention refers to, which
 was not intended.  The problem only manifests when
 "boost/detail/numeric_traits.hpp" gets #included, directly or indirectly,
 before "boost/integer.hpp", but doesn't manifest if "boost/integer.hpp" is
 #included first (which may be a ODR violation).

 Thanks to Jeroen van der Wulp for initially reporting this and providing a
 potential patch.

-- 
Ticket URL: <http://svn.boost.org/trac/boost/ticket/2134>
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