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## Struct template unique_ptr_data

boost::move_upd::unique_ptr_data

## Synopsis

    // In header: <boost/move/unique_ptr.hpp>

    template<typename P, typename D,
             bool  = bmupmu::is_unary_function<D>::value || bmupmu::is_reference<D>::value>
    struct unique_ptr_data {
      // types
      typedef deleter_types< D >::deleter_arg_type1 deleter_arg_type1;
      typedef deleter_types< D >::del_ref           del_ref;
      typedef deleter_types< D >::del_cref          del_cref;

      // construct/copy/destruct
      unique_ptr_data() noexcept;
      explicit unique_ptr_data(P) noexcept;
      unique_ptr_data(P, deleter_arg_type1) noexcept;
      template<typename U> unique_ptr_data(P, U &&) noexcept;
      unique_ptr_data(const unique_ptr_data &);
      unique_ptr_data & operator=(const unique_ptr_data &);

      // public member functions
      del_ref deleter();
      del_cref deleter() const;

      // public data members
      P m_p;
      D d;
    };

## Description

### `unique_ptr_data` public construct/copy/destruct

1.     unique_ptr_data() noexcept;

2.     explicit unique_ptr_data(P p) noexcept;

3.     unique_ptr_data(P p, deleter_arg_type1 d1) noexcept;

4.     template<typename U> unique_ptr_data(P p, U && d1) noexcept;

5.     unique_ptr_data(const unique_ptr_data &);

6.     unique_ptr_data & operator=(const unique_ptr_data &);

### `unique_ptr_data` public member functions

1.     del_ref deleter();

2.     del_cref deleter() const;