https://svn.boost.org/trac10/ticket/145 <pre class="wiki">Following the thread : http://aspn.activestate.com/ASPN/Mail/Message/boost/1624622 It should be possible to support the bidirectional feature without storing the "begin" of the base iterator. It should not be too hard to implement. </pre> en-us /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/145 Trac 1.4.3 Daryle Walker Mon, 27 Aug 2007 22:28:44 GMT https://svn.boost.org/trac10/ticket/145#comment:1 https://svn.boost.org/trac10/ticket/145#comment:1 <ul> <li><strong>component</strong> <span class="trac-field-old">None</span> → <span class="trac-field-new">iterator</span> </li> <li><strong>severity</strong> → <span class="trac-field-new">Problem</span> </li> </ul> <p> (The OP should have restated the problem fully instead of deferring to an external site and using this ticket as a reply on that thread.) </p> <p> It seems that the OP is suggesting how to implement bidirectionality, while the referred thread requests bidirectionality (in any form). Anyway, looking at the current <a href="http://www.boost.org/libs/iterator/doc/filter_iterator.html">Filter Iterator</a> documentation, bidirectionality has been added in the interim, so the maintainer should give the code a once-over and close this ticket. </p> Ticket Daniel James Sun, 31 May 2009 17:25:07 GMT https://svn.boost.org/trac10/ticket/145#comment:2 https://svn.boost.org/trac10/ticket/145#comment:2 <ul> <li><strong>status</strong> <span class="trac-field-old">assigned</span> → <span class="trac-field-new">closed</span> </li> <li><strong>resolution</strong> <span class="trac-field-old">Fixed</span> → <span class="trac-field-new">fixed</span> </li> </ul> <p> This looks fixed to me. </p> Ticket