Re: [Boost-bugs] [Boost C++ Libraries] #2640: counting_iterator::reference lifetime tied to iterator

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #2640: counting_iterator::reference lifetime tied to iterator
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-11-29 02:53:55

#2640: counting_iterator::reference lifetime tied to iterator
---------------------------+------------------------------------------------
  Reporter:  schoedl       |       Owner:  dave                              
      Type:  Bugs          |      Status:  new                               
 Milestone:  Boost 1.38.0  |   Component:  iterator                          
   Version:  Boost 1.37.0  |    Severity:  Problem                           
Resolution:                |    Keywords:  counting_iterator reverse_iterator
---------------------------+------------------------------------------------

Comment (by mikhailberis):

 I'm not sure I understand the consequences of this patch. Iterator
 references are meant to be valid only while the actual source of the data
 is still valid. This is the same reason why iterators typically don't own
 the data it refers to.

 I don't see why the semantics should change for counting iterator. Unless
 there is really a bug with the implementation (i.e., a reproducible crash
 or relying on undefined behavior) then I don't see why this patch solves
 anything.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/2640#comment:1>
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