id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
1109	intrusive_ptr needs a helper base class	Peter Dimov	Peter Dimov	"http://lists.boost.org/Archives/boost/2006/04/103182.php
http://lists.boost.org/Archives/boost/2006/04/103203.php
http://lists.boost.org/Archives/boost/2006/04/103267.php
http://lists.boost.org/Archives/boost/2006/04/103273.php
{{{
class counted_base
{
private:

    mutable detail::atomic_count count_;

protected:

    counted_base(): count_( 0 ) {}
    virtual ~counted_base() {}
    counted_base( counted_base const & ): count_( 0 ) {}
    counted_base& operator=( counted_base const & ) { return *this; }

public:

    inline friend void intrusive_ptr_add_ref( counted_base const * p )
    {
        ++p->count_;
    }

    inline friend void intrusive_ptr_release( counted_base const * p )
    {
        if( --p->count_ == 0 ) delete p;
    }

    long use_count() const { return count_; }
};
}}}
http://lists.boost.org/Archives/boost/2006/04/103306.php"	Feature Requests	closed	To Be Determined	smart_ptr		Problem	fixed