Re: [Boost-bugs] [Boost C++ Libraries] #5963: Patch [Fixes #5961]: Disallow comparisons of differing iterator types in ptr_container

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #5963: Patch [Fixes #5961]: Disallow comparisons of differing iterator types in ptr_container
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-09-29 14:21:16

#5963: Patch [Fixes #5961]: Disallow comparisons of differing iterator types in
ptr_container
--------------------------------------------------+-------------------------
  Reporter:  Rob Desbois <rob.desbois@…>          |       Owner:  nesotto                
      Type:  Patches                              |      Status:  new                    
 Milestone:  To Be Determined                     |   Component:  ptr_container          
   Version:  Boost 1.47.0                         |    Severity:  Problem                
Resolution:                                       |    Keywords:  iterator, type, compare
--------------------------------------------------+-------------------------

Comment (by anonymous):

 Hi,

 Thanks for the patch. However, I do not think its the right way to do it.
 I think it generates too many iterator types, and I think there must be a
 much simpler fix.

 I'm thinking out of the box, partially because I cannot remember why the
 code takes parameters U and T. Maybe it is because that U and T are always
 either X or const X.

 That is, it may be possible to fix the problem by using enable_if<> that
 requires that
 is_same< remove_const<U>, remove_const<T> >::value is true.

 -Thorsten

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/5963#comment:2>
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