nullptr.h

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/******************************************************************************
The MIT License(MIT)

Embedded Template Library.

Copyright(c) 2014 jwellbelove

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#ifndef __ETL_NULLPTR__
#define __ETL_NULLPTR__


#if (defined(_MSC_VER) && (_MSC_VER < 1600)) || defined(COMPILER_KEIL) || defined(COMPILER_IAR)
namespace std
{
  //*****************************************************************************
  //*****************************************************************************
  class nullptr_t
  {
  public:

    // Convertible to any type of null non-member pointer.
    template<class T>
    operator T*() const
    {
      return 0;
    }

    // Or any type of null member pointer.
    template<class C, class T>
    operator T C::*() const
    {
      return 0;
    }

  private:

    // Can't take address of nullptr.
    void operator&() const;
  };

  //*****************************************************************************
  //*****************************************************************************
  const nullptr_t nullptr = {};
}

//*****************************************************************************
//*****************************************************************************
class nullptr_t
{
public:

  // Convertible to any type of null non-member pointer.
  template<class T>
  operator T*() const
  {
    return 0;
  }

  // Or any type of null member pointer.
  template<class C, class T>
  operator T C::*() const
  {
    return 0;
  }

private:

  // Can't take address of nullptr.
  void operator&() const;
};

//*****************************************************************************
//*****************************************************************************
const nullptr_t nullptr = {};

#endif
#endif