Re: [Boost-bugs] [Boost C++ Libraries] #1993: Incorrect iterator_category computation in some iterator classes in Boost.Iterator

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #1993: Incorrect iterator_category computation in some iterator classes in Boost.Iterator
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2008-06-06 15:25:55

#1993: Incorrect iterator_category computation in some iterator classes in
Boost.Iterator
---------------------------------------------------------+------------------
  Reporter:  Wijnand Suijlen <wijnandsuijlen_at_[hidden]>  |       Owner:  dave    
      Type:  Bugs                                        |      Status:  closed  
 Milestone:  Boost 1.36.0                                |   Component:  iterator
   Version:  Boost 1.35.0                                |    Severity:  Problem 
Resolution:  invalid                                     |    Keywords:          
---------------------------------------------------------+------------------
Changes (by dave):

  * status:  new => closed
  * resolution:  => invalid

Comment:

 The categories are correctly computed.  An iterator cannot be called a
 standard forward iterator unless its operator* returns value_type&, and
 that is not possible with a zip iterator or with a transform iterator
 whose function returns by value.  Please see
 http://www.boost.org/doc/libs/1_35_0/libs/iterator/doc/new-iter-

 concepts.html#motivation

 If you think you can get away with it, you can always specialize
 std::iterator_traits<It> to lie about the iterator's iterator_category.

-- 
Ticket URL: <http://svn.boost.org/trac/boost/ticket/1993#comment:1>
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