[Boost-users] Problem with recursion using Boost intrusive list

From: Tomá¹ ©alamon (tomas.salamon_at_[hidden])
Date: 2008-07-12 08:30:50

Hi,

I am a newbie to Boost libraries and I have the following problem with Boost 
intrusive list:

I have a Page class and I need to put its instances into an intrusive set. 
There is no problem and it is working fine. Beside that, I need every 
instance of this class had a member intrusive list containing other Pages. 
The source is as follows:

struct pageTag;
typedef link_mode<normal_link> NormalLinkMode;
typedef set_base_hook<tag<pageTag>, NormalLinkMode> SetPageHook;
typedef list_base_hook<tag<pageTag>, NormalLinkMode> ListPageHook;

class Page :
    public ListPageHook,
    public SetPageHook
{
public:
    typedef set<Page, base_hook<SetPageHook>> PageSet;
    typedef list<Page, base_hook<ListPageHook>> PageList;

    Page();
    ...
    friend bool operator< (const Page &a, const Page &b)
    {  return a.fullPath < b.fullPath;  }
    friend bool operator> (const Page &a, const Page &b)
    {  return a.fullPath > b.fullPath;  }
    friend bool operator== (const Page &a, const Page &b)
    {  return a.fullPath < b.fullPath;  }
private:
    // some stuff here
    PageList links;  /****************** THIS IS THE PROBLEM 
*************************
};

As I add the last line with the list, I get: "Error 1 error C2248: 
'boost::intrusive::list_impl<Config>::list_impl' : cannot access private 
member declared in class 'boost::intrusive::list_impl<Config>' c:\program 
files\boost\boost_1_35_0\boost\intrusive\list.hpp 1434".

Is there any problem with recursion in Boost intrusive containers?

Thank you.

Tomas