Re: [Boost-bugs] [Boost C++ Libraries] #4028: fusion::begin and fusion::end lead to problems with ADL-based begin and end functions for ranges

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #4028: fusion::begin and fusion::end lead to problems with ADL-based begin and end functions for ranges
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-12-20 15:49:02

#4028: fusion::begin and fusion::end lead to problems with ADL-based begin and end
functions for ranges
-------------------------------+--------------------------------------------
  Reporter:  mgaunard          |       Owner:  djowel             
      Type:  Bugs              |      Status:  reopened           
 Milestone:  To Be Determined  |   Component:  fusion             
   Version:  Boost 1.42.0      |    Severity:  Problem            
Resolution:                    |    Keywords:  ADL range begin end
-------------------------------+--------------------------------------------

Comment (by anonymous):

 I don't think we can do anything about that problem without breaking
 changes in Fusion.

 Nevertheless the problem still exists in some cases, maybe it should be
 marked as partial wontfix ?

 Forcing users to qualify begin and end doesn't solve the problem, since
 the C++0x for-loop construct calls those functions unqualified and relies
 on ADL.
 The real solution, to me, would be for the standard to reconsider the use
 of begin/end through ADL, but it's now too late for that.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4028#comment:8>
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