shareable.hpp

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#ifndef Om_Shareable_
 
    #define Om_Shareable_ \
    Om::Shareable
 
    #ifndef Om_Macro_Precompilation_
 
        #include <cstddef>
 
    #endif
 
namespace Om {
 
    // MARK: - Om::Shareable
 
    template <typename ThisOwnerCount = size_t>
    class Shareable {
 
        template <typename TheOwnerCount>
        friend void intrusive_ptr_add_ref(
            Shareable<TheOwnerCount> * const
        );
 
        template <typename TheOwnerCount>
        friend void intrusive_ptr_release(
            Shareable<TheOwnerCount> * const
        );
 
    public: // MARK: public (non-static)
 
        virtual ~Shareable() = 0;
 
        ThisOwnerCount GetOwnerCount() const;
 
    protected: // MARK: protected (non-static)
 
        Shareable();
 
        Shareable(Shareable const &);
 
        Shareable & operator =(Shareable const &);
 
    private: // MARK: private (non-static)
 
        void DecrementOwnerCount();
 
        void IncrementOwnerCount();
 
        ThisOwnerCount thisOwnerCount;
 
    };
 
    // MARK: - Om::
 
    template <typename TheOwnerCount>
    void intrusive_ptr_add_ref(
        Shareable<TheOwnerCount> * const
    );
 
    template <typename TheOwnerCount>
    void intrusive_ptr_release(
        Shareable<TheOwnerCount> * const
    );
 
}
 
    #include "om/shareable.cpp"
 
#endif