autoptr.h

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#pragma once

template<typename T> class AutoPtr
{
    public:
        explicit AutoPtr (T* const p = 0) :
            p_(p)
        {
        }

        ~AutoPtr ()
        {
            if (p_)
                delete p_;
        }

        void deallocate ()
        {
            *this = 0;
        }

        T* release ()
        {
            T* const p = p_;
            p_ = 0;
            return p;
        }

        void operator = (T* const p)
        {
            if (p_)
                delete p_;
            p_ = p;
        }

        T* operator -> () const
        {
            return p_;
        }

        T& operator * () const
        {
            return *p_;
        }

        operator bool () const
        {
            return p_;
        }

        operator T* () const
        {
            return p_;
        }

    private:
        T* p_;

        AutoPtr (const AutoPtr&); /* no copy */
        void operator = (AutoPtr&); /* no assignment */
};