[Boost-users] ptr_vector problem when storing it inside a map

24 Oct 2005

      Hi all,

I've just started looking at ptr_vector<> and got stuck on the
following issue:

        putting a boost::ptr_vector<Simple> into a map doesn't
        compile. See the following test case:

class Simple
{    
public:
        virtual ~Simple()        
        { 
        }
        void foo()             
        { 
                doFoo(); 
        }

protected:
        virtual void doFoo()
        {
        }
};

void Test()
{
        std::map<std::string, boost::ptr_vector<Simple> >       map;
        map["key"].push_back(new Simple);
}

I'm using VS2005 RC1 (8.0.50727.26) and the compiler output is as
follows:

1>c:\work\3rd-party\boost\include\boost-1_33\boost/ptr_container/ptr_sequence_adapter.hpp(595) : 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>'
1>        with
1>        [
1>            Config=boost::ptr_container_detail::sequence_config<Simple,std::vector<void *,std::allocator<void *>>>,
1>            CloneAllocator=boost::heap_clone_allocator
1>        ]
1>        c:\work\3rd-party\boost\include\boost-1_33\boost/ptr_container/detail/reversible_ptr_container.hpp(294) : see declaration of 'boost::ptr_container_detail::reversible_ptr_container<Config,CloneAllocator>::reversible_ptr_container'
1>        with
1>        [
1>            Config=boost::ptr_container_detail::sequence_config<Simple,std::vector<void *,std::allocator<void *>>>,
1>            CloneAllocator=boost::heap_clone_allocator
1>        ]
1>        This diagnostic occurred in the compiler generated function 'boost::ptr_sequence_adapter<T,VoidPtrSeq,CloneAllocator>::ptr_sequence_adapter(const boost::ptr_sequence_adapter<T,VoidPtrSeq,CloneAllocator> &)'
1>        with
1>        [
1>            T=Simple,
1>            VoidPtrSeq=std::vector<void *,std::allocator<void *>>,
1>            CloneAllocator=boost::heap_clone_allocator
1>        ]

Can anybody shed some light on the subject?

Thanks,
Oleg.

[Boost-users] ptr_vector problem when storing it inside a map

Oleg Smolsky