Ticket #6943: intrusive.cpp

//****** Header 1 **********

#include <boost/intrusive_ptr.hpp>
#include <boost/detail/atomic_count.hpp>

using boost::intrusive_ptr;

class Foo;
namespace boost
{
        void intrusive_ptr_add_ref(Foo* psFoo);
        void intrusive_ptr_release(Foo* psFoo);
};

class SomeClass
{
        boost::detail::atomic_count reference_count;
        friend void ::boost::intrusive_ptr_add_ref(Foo* psFoo);
        friend void ::boost::intrusive_ptr_release(Foo* psFoo);
};

namespace boost
{
        void intrusive_ptr_add_ref(Foo* psFoo)
        {
                ++(psFoo->reference_count);
        }

        void intrusive_ptr_release(Foo* psFoo)
        {
                --(psFoo->reference_count);
        }
};

//****** Header 2 **********

// include Header 1
#include <boost/intrusive_ptr.hpp>
using boost::intrusive_ptr;

// Gcc 4.7.0 and clang 3.1 need the following two lines to compile this example
//using boost::intrusive_ptr_add_ref;
//using boost::intrusive_ptr_release;

class Bar
{
        intrusive_ptr<Foo> psFoo;
public:
        Bar(intrusive_ptr<Foo> foo): psFoo(foo) { }
};

//****** Source 2 **********
// include Header 2

int main(int, const char**)
{
        return 0;
}