id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
10003	Fibonacci heaps base class not copy constructible.	Raffi Enficiaud	timblechmann	"The following code does not compile on Windows / Visual Express 2013 x64.

{{{
#!div style=""font-size: 80%""
Code highlighting:
  {{{#!C++
BOOST_AUTO_TEST_CASE(test_heap_vector)
{
  typedef boost::heap::fibonacci_heap<double, boost::heap::compare< std::less<double> > > low_heap_t;
  
  low_heap_t lowh;
  
  const int K = 7;
  
  boost::random::uniform_real_distribution<double> dist;
  // preparing the heap
  for(int i = 0; i < 100; i++)
  {
    double current = dist(rng);
    if(lowh.size() < K)
    {
      lowh.push(current);
    }
    else if(lowh.value_comp()(current, lowh.top()))
    {
      lowh.push(current);
      lowh.pop();
    }
  }
  
  BOOST_CHECK_EQUAL(lowh.size(), K);

  // duplicating in the vector
  std::vector<low_heap_t> v(10, lowh);
  for(int i = 0; i < 10; i++)
  {
    BOOST_CHECK_EQUAL(v[i].size(), K);
  }
}
  }}}
}}}

The compiler gives me this:
{{{
1>d:\Code\thirdparties\visual2013x64\boost_1_55\include\boost-1_55\boost/heap/fibonacci_heap.hpp(224): error C2664: 'boost::heap::detail::make_fibonacci_heap_base<T,boost::parameter::aux::arg_list<boost::heap::compare<std::less<double>>,ArgumentPack>>::type::type(boost::heap::detail::make_fibonacci_heap_base<T,boost::parameter::aux::arg_list<boost::heap::compare<std::less<double>>,ArgumentPack>>::type &)' : impossible de convertir l'argument 1 de 'const boost::heap::fibonacci_heap<double,boost::heap::compare<std::less<double>>,boost::parameter::void_,boost::parameter::void_,boost::parameter::void_,boost::parameter::void_>' en 'const std::less<double> &'
1>          with
1>          [
1>              T=double
1>  ,            ArgumentPack=boost::parameter::aux::empty_arg_list
1>          ]
1>          Raison : impossible de convertir de 'const boost::heap::fibonacci_heap<double,boost::heap::compare<std::less<double>>,boost::parameter::void_,boost::parameter::void_,boost::parameter::void_,boost::parameter::void_>' en 'const std::less<double>'
1>          Aucun opérateur de conversion définie par l'utilisateur disponible qui puisse effectuer cette conversion, ou l'opérateur ne peut pas être appelé
1>          d:\Code\thirdparties\visual2013x64\boost_1_55\include\boost-1_55\boost/heap/fibonacci_heap.hpp(222) : lors de la compilation de la fonction membre 'boost::heap::fibonacci_heap<double,boost::heap::compare<std::less<double>>,boost::parameter::void_,boost::parameter::void_,boost::parameter::void_,boost::parameter::void_>::fibonacci_heap(const boost::heap::fibonacci_heap<double,boost::heap::compare<std::less<double>>,boost::parameter::void_,boost::parameter::void_,boost::parameter::void_,boost::parameter::void_> &)' de la classe modèle
1>          C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\include\xmemory0(593) : voir la référence à l'instanciation de la fonction modèle 'boost::heap::fibonacci_heap<double,boost::heap::compare<std::less<double>>,boost::parameter::void_,boost::parameter::void_,boost::parameter::void_,boost::parameter::void_>::fibonacci_heap(const boost::heap::fibonacci_heap<double,boost::heap::compare<std::less<double>>,boost::parameter::void_,boost::parameter::void_,boost::parameter::void_,boost::parameter::void_> &)' en cours de compilation
========== Génération : 0 a réussi, 1 a échoué, 0 mis à jour, 0 a été ignoré ==========
}}}


Apparently it comes from 

{{{
#!div style=""font-size: 80%""
Code highlighting:
  {{{#!C++
    make_fibonacci_heap_base::type
  }}}
}}}


Creating a copy constructor and moving the assignment operator out of the  
#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES / #endif seems to work.



{{{
#!div style=""font-size: 80%""
Code highlighting:
  {{{#!C++
    struct type:
        base_type,
        allocator_type
    {
        type(compare_argument const & arg):
            base_type(arg)
        {}
        type(type const & rhs):
            base_type(static_cast<base_type const &>(rhs)),
            allocator_type(static_cast<allocator_type const&>(rhs))
        {}
#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
        type(type && rhs):
            base_type(std::move(static_cast<base_type&>(rhs))),
            allocator_type(std::move(static_cast<allocator_type&>(rhs)))
        {}

        type(type & rhs):
            base_type(static_cast<base_type&>(rhs)),
            allocator_type(static_cast<allocator_type&>(rhs))
        {}

        type & operator=(type && rhs)
        {
            base_type::operator=(std::move(static_cast<base_type&>(rhs)));
            allocator_type::operator=(std::move(static_cast<allocator_type&>(rhs)));
            return *this;
        }
#endif
        type & operator=(type const & rhs)
        {
            base_type::operator=(static_cast<base_type const &>(rhs));
            allocator_type::operator=(static_cast<allocator_type const &>(rhs));
            return *this;
        }

    };
  }}}
}}}"	Bugs	closed	To Be Determined	heap	Boost 1.55.0	Problem	fixed		raffi.enficiaud@…