[Boost-bugs] [Boost C++ Libraries] #10028: erasing in a container::vector of move only type calls the destructor after the object has been moved

Subject: [Boost-bugs] [Boost C++ Libraries] #10028: erasing in a container::vector of move only type calls the destructor after the object has been moved
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-05-09 09:10:41

#10028: erasing in a container::vector of move only type calls the destructor after
the object has been moved
------------------------------+------------------------
 Reporter:  maynuki@…         |      Owner:  igaztanaga
     Type:  Bugs              |     Status:  new
Milestone:  To Be Determined  |  Component:  container
  Version:  Boost 1.55.0      |   Severity:  Problem
 Keywords:                    |
------------------------------+------------------------
 The following snippet shows the issue. This issues affects also flat
 associative containers


 {{{
 #include <iostream>

 #include "boost\container\vector.hpp"
 #include "boost\noncopyable.hpp"


 struct movable : boost::noncopyable {
   int value_;

   ~movable() {
         if( value_ != 0 ) {
           std::cout << "release resource : " << value_ << std::endl;
         }
   }

   movable(int value) : value_(value) {}
   movable(movable&& rhs) : value_(rhs.value_) { rhs.value_ = 0; }
   movable& operator=(movable&& rhs) {
         value_ = rhs.value_;
         rhs.value_ = 0;
         return *this;
   }
 };



 int main() {
   boost::container::vector<movable> my_vector;
   for( int i = 1; i <= 10; ++i) {
         my_vector.emplace_back(i);
   }
   my_vector.erase(my_vector.begin());
   my_vector.erase(my_vector.begin(), my_vector.begin() + 3);
   return 0;
 }
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/10028>
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