MFC CArray conversion sintax for MFC CAtlArray

MFC CArray conversion sintax for MFC CAtlArray

• MauroM

  CAtlArray<CFVector3D> m_Array;

  
  

  
  
  

• jpvalappil

  Hi Viorel!
  As you can see, the I already include a copy constructor. By the way, all the CFVector3D - data members and member functions - are public, there is no private or protected!
  
  I still got these errors!
  
  Ioan
  
  

• Shilps

  Thank you Martin!
  
  
  I'm using the m_Array to work with a class called CFVector3D. I have following your idea.. but i get 2 error error from compiler:
  
  error C2558: class 'CFVector3D' : no copy constructor available or copy constructor is declared 'explicit'
  c:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\atlmfc\include\atlalloc.h(292) : while compiling class-template member function 'size_t ATL::CAtlArray<E>::Add(ATL::CAtlArray<E>::INARGTYPE)'
  with
  [
  E=CFVector3D
  ]
  d:\bcad_api\addinforbricscad\addinforbricscad\vectorlib\vectorlib.h(916) : see reference to class template instantiation 'ATL::CAtlArray<E>' being compiled
  with
  [
  E=CFVector3D
  ]
  c:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\atlmfc\include\atlcoll.h(938) : error C2679: binary '=' : no operator found which takes a right-hand operand of type 'const CFVector3D' (or there is no acceptable conversion)
  c:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\atlmfc\include\atlalloc.h(292) : while compiling class-template member function 'void ATL::CAtlArray<E>::InsertAt(size_t,ATL::CAtlArray<E>::INARGTYPE,size_t)'
  with
  [
  E=CFVector3D
  ]
  
  
  
  Here is the CFVector3D header (a simplified version):
  
  class CFVector3D : public IVector3D
  {
  public:
  
  
  CFDouble z;
  CFDouble y;
  CFDouble x;
  
  
  CFVector3D();
  virtual ~CFVector3D();
  CFVector3D(CFDouble X, CFDouble Y, CFDouble Z);
  
  CFVector3D(IVector3D* pVector);
  CFVector3D(CFVector3D &rVector);
  CFVector3D(SFPoint3D &rPoint);
  
  CFVector3D& operator =(SFPoint3D &rPoint);
  CFVector3D& operator =(CFVector3D &rVector);
  
  };
  
  
  and here is the class implementation:
  
  
  CFVector3D::CFVector3D()
  {
  x=0;
  y=0;
  z=0;
  }
  
  
  CFVector3D::~CFVector3D()
  {
  
  }
  
  CFVector3D::CFVector3D(CFDouble X, CFDouble Y, CFDouble Z)
  {
  x=X;
  y=Y;
  z=Z;
  }
  
  CFVector3D::CFVector3D(IVector3D* pVector)
  {
  pVector->GetXYZ(&x,&y,&z);
  }
  
  CFVector3D::CFVector3D(CFVector3D &rVector)
  {
  x=rVector.x;
  y=rVector.y;
  z=rVector.z;
  }
  
  
  CFVector3D::CFVector3D(SFPoint3D &rPoint)
  {
  x=CFDouble(rPoint.x,rPoint.xError);
  y=CFDouble(rPoint.y,rPoint.yError);
  z=CFDouble(rPoint.z,rPoint.zError);
  }
  
  
  CFVector3D& CFVector3D::operator =(CFVector3D &rVector)
  {
  x=rVector.x;
  y=rVector.y;
  z=rVector.z;
  
  return *this;
  }
  
  
  CFVector3D& CFVector3D::operator =(SFPoint3D &rPoint)
  {
  x=CFDouble(rPoint.x,rPoint.xError);
  y=CFDouble(rPoint.y,rPoint.yError);
  z=CFDouble(rPoint.z,rPoint.zError);
  
  return *this;
  }
  How could i avoid these two above compiler errors
  Any ideea is appreciate!
  Ioan
  
  
  
  
  
  

• bhan

  I think your CFVector3D class needs a public implicit copy constructor:

   

  class CFVector3D

  {

  public:

      CFVector3D(const CFVector3D & alt);

      . . .

  };

   

  // . . . 

   

  CFVector3D::CFVector3D(const CFVector3D & alt)

  {

     x = alt.x;

     y = alt.y;

     z = alt.z;

  }

   

  or, since you have the "=" operator, you can re-use it:

   

  CFVector3D::CFVector3D(const CFVector3D & alt)

  {

     *this = alt;

     // (also change the parameter of "=" operator to "const CFVector3D &")

  }

   

  Hope it helps.

   

  
  

• Thor Laage-Petersen

  Hi Viorel!
  Excelent response!!
  It works!
  
  
  Thank you (mersi fain!) :)
  Ioan
  
  

• Blacata

  I think ATL requires constructors which take a constant reference. I reproduced your first error message and I solved it by adding "const" to parameter list.

  So try CFVector3D::CFVector3D(const CFVector3D &rVector) instead of CFVector3D::CFVector3D(CFVector3D &rVector).

  
  
• MFC CArray conversion sintax for MFC CAtlArray