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## Struct template pointer_plus_bits<T *, NumBits>

boost::intrusive::pointer_plus_bits<T *, NumBits>

## Synopsis

    // In header: <boost/intrusive/pointer_plus_bits.hpp>

    template<typename T, std::size_t NumBits>
    struct pointer_plus_bits<T *, NumBits> {
      // types
      typedef T * pointer;

      // public static functions
      static pointer get_pointer(pointer);
      static void set_pointer(pointer &, pointer);
      static std::size_t get_bits(pointer);
      static void set_bits(pointer &, std::size_t);

      // public data members
      static const std::size_t Mask;
    };

## Description

This is the specialization to embed extra bits of information in a raw pointer. The extra bits are stored in the lower bits of the pointer.

### `pointer_plus_bits` public static functions

1.     static pointer get_pointer(pointer n);

2.     static void set_pointer(pointer & n, pointer p);

3.     static std::size_t get_bits(pointer n);

4.     static void set_bits(pointer & n, std::size_t c);