OwningOrAliasingPtr.h

#pragma once

#if defined(OwningOrAliasingPtr_RECURSES)
#error Recursive header files inclusion detected in OwningOrAliasingPtr.h
#else // defined(OwningOrAliasingPtr_RECURSES)

#define OwningOrAliasingPtr_RECURSES

#if !defined OwningOrAliasingPtr_h

#define OwningOrAliasingPtr_h

// Inclusions
#include <iostream>
#include "DGtal/base/Common.h"

namespace DGtal
{

  // template class OwningOrAliasingPtr
  template <typename T>
  class OwningOrAliasingPtr
  {

    BOOST_CONCEPT_ASSERT(( boost::CopyConstructible<T> ));
 
    // ----------------------- Inner types       ------------------------------
  public:
    typedef T Value; 
    typedef T* Pointer;
    typedef T& Reference;   

    // ----------------------- Standard services ------------------------------
  public:

    OwningOrAliasingPtr( const T& aValue );

    OwningOrAliasingPtr( Pointer aPtr, bool isOwning = false ); 

    OwningOrAliasingPtr ( const OwningOrAliasingPtr & other );

    OwningOrAliasingPtr & operator= ( const OwningOrAliasingPtr & other );

    ~OwningOrAliasingPtr();

    // ----------------------- Interface --------------------------------------
  public:

    Pointer operator->() const;

    Pointer get() const;

    Reference operator*() const;

    bool isOwning() const;

    void selfDisplay ( std::ostream & out ) const;

    bool isValid() const;

    // ------------------------- Protected Datas ------------------------------
  private:
    // ------------------------- Private Datas --------------------------------
  private:

    Pointer myPtr; 
 
    bool myFlagIsOwning; 


    // ------------------------- Hidden services ------------------------------
  protected:


  private:


    // ------------------------- Internals ------------------------------------
  private:

  }; // end of class OwningOrAliasingPtr


  template <typename T>
  std::ostream&
  operator<< ( std::ostream & out, const OwningOrAliasingPtr<T> & object );

} // namespace DGtal


// Includes inline functions.
#include "DGtal/base/OwningOrAliasingPtr.ih"

//                                                                           //

#endif // !defined OwningOrAliasingPtr_h

#undef OwningOrAliasingPtr_RECURSES
#endif // else defined(OwningOrAliasingPtr_RECURSES)