[Boost-users] [ptr_container] "Cannot access private member..." compile error

From: Dan Thill (dgt_at_[hidden])
Date: 2007-07-19 15:44:39

Seeking ptr_container guru,

My first usage of ptr_container, and I fear I'm missing something
obvious.  I keep getting the following compile error:

--------------------------------------------

Z:\Tools\boost\boost_1_34_0\boost/ptr_container/detail/associative_ptr_container.hpp(202)
: error C2248: 'boost::ptr_container_detail::reversible_ptr_container<Config,CloneAllocator>::reversible_ptr_container'
: cannot access private member declared in class
'boost::ptr_container_detail::reversible_ptr_container<Config,CloneAllocator>'
        with
        [
            Config=boost::ptr_container_detail::set_config<Abstract_Record,std::set<void
*,boost::void_ptr_indirect_fun<std::less<Abstract_Record>,Abstract_Record>,std::allocator<void
*>>>,
            CloneAllocator=boost::heap_clone_allocator
        ]
        Z:\Tools\boost\boost_1_34_0\boost/ptr_container/detail/reversible_ptr_container.hpp(286)
: see declaration of
'boost::ptr_container_detail::reversible_ptr_container<Config,CloneAllocator>::reversible_ptr_container'
        with
        [
            Config=boost::ptr_container_detail::set_config<Abstract_Record,std::set<void
*,boost::void_ptr_indirect_fun<std::less<Abstract_Record>,Abstract_Record>,std::allocator<void
*>>>,
            CloneAllocator=boost::heap_clone_allocator
        ]
        This diagnostic occurred in the compiler generated function
'boost::ptr_container_detail::associative_ptr_container<Config,CloneAllocator>::associative_ptr_container(const
boost::ptr_container_detail::associative_ptr_container<Config,CloneAllocator>
&)'
        with
        [
            Config=boost::ptr_container_detail::set_config<Abstract_Record,std::set<void
*,boost::void_ptr_indirect_fun<std::less<Abstract_Record>,Abstract_Record>,std::allocator<void
*>>>,
            CloneAllocator=boost::heap_clone_allocator
        ]

--------------------------------------------

My container is declared thusly:

boost::ptr_set<Abstract_Record>

And the relevant parts of

--------------------------------------------
class Abstract_Record {
public:
   Abstract_Record();
   Abstract_Record* clone();
   virtual bool operator<(const Abstract_Record&);

private:
   Abstract_Record(const Abstract_Record&);

};
--------------------------------------------

I'm having trouble deciphering the error message.  I declared a
new_clone() function as described in the docs.  I also tried writing
my own CloneAllocator.  Neither have any effect.  I would be very
grateful for some insight, or even a nudge with a cluebat.

-Dan