scoped_array.hpp

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#ifndef SCOPED_ARRAY_HPP
#define SCOPED_ARRAY_HPP

#include <cstddef>


template<class T>
class scoped_array
{
private:
    T *px;

    scoped_array(scoped_array const &);
    scoped_array &operator=(scoped_array const &);

    typedef scoped_array<T> this_type;

    void operator==(scoped_array const &) const;
    void operator!=(scoped_array const &) const;

public:
    typedef T element_type;

    explicit scoped_array(T *p = 0)
    :   px(p)
    {
    }

    ~scoped_array()
    {
        delete px;
    }

    void reset(T *p = 0)
    {
        this_type(p).swap(*this);
    }

    T &operator[](std::ptrdiff_t i) const
    {
        return px[i];
    }

    T *get() const
    {
        return px;
    }

    void swap(scoped_array &b)
    {
        T *tmp = b.px;
        b.px = px;
        px = tmp;
    }
};

template<class T> inline void swap(scoped_array<T> &a, scoped_array<T> &b)
{
    a.swap(b);
}


#endif