[Boost-bugs] [Boost C++ Libraries] #10328: is_linked is broken for linear slist

Subject: [Boost-bugs] [Boost C++ Libraries] #10328: is_linked is broken for linear slist
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-08-08 13:32:17

#10328: is_linked is broken for linear slist
-------------------------------------+------------------------
 Reporter:  anonymous                |      Owner:  igaztanaga
     Type:  Bugs                     |     Status:  new
Milestone:  To Be Determined         |  Component:  intrusive
  Version:  Boost Development Trunk  |   Severity:  Problem
 Keywords:                           |
-------------------------------------+------------------------
 The following program should print "Ok" but it print "Arghhhh"

 This is do to is_linked checking the next pointer which is nullptr for the
 last element. The example works fine when omitting the ,bi::linear<true>
 line

 {{{#!cpp
 #include <boost/intrusive/slist.hpp>
 #include <iostream>

 namespace bi=boost::intrusive;
 struct my_tag {};
 typedef bi::slist_base_hook<bi::tag<my_tag>, bi::link_mode<bi::safe_link>
 > my_hook;

 struct my_type: public my_hook {
   bool is_linked() const {
     return my_hook::is_linked();
   }
 };

 typedef bi::slist<my_type,
                   bi::base_hook<my_hook>
                   , bi::linear<true>
                   > my_list;

 int main() {
   my_type item;
   my_list list;
   list.push_front(item);
   std::cout << (item.is_linked() ? "Ok": "Arghhhhh") << std::endl;
 }

 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/10328>
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