C / C++ / MFC

<br />
<br />
void CMyView:rawWFRDiagram(int Velocity)<br />
{<br />
  char cc[10];<br />
  int maxdelay = -1;<br />
  CPatternDoc *pDoc = GetDocument();<br />
<br />
  CSize sizeTotal;	<br />
  sizeTotal.cx = 590;   sizeTotal.cy = 1100;<br />
  SetScrollSizes(MM_LOENGLISH, sizeTotal);<br />
  <br />
  CClientDC ClientDC(this);<br />
  OnPrepareDC(&ClientDC);<br />
  <br />
  ClientDC.SetMapMode(MM_TEXT);<br />
   m_WfrBmp -- Member of CMyView of type CBitmap<br />
   m_WfrBmp.DeleteObject ();    <br />
   m_WfrBmp.CreateCompatibleBitmap(&ClientDC, 860, 1100);<br />
   MemDC.CreateCompatibleDC(&ClientDC);	<br />
   CBitmap *pOldBitmap = MemDC.SelectObject(&m_WfrBmp);<br />
   MemDC.SetMapMode(MM_TEXT);			<br />
   MemDC.PatBlt(0, 0, 860, 1100, WHITENESS);		<br />
<br />
     Draw anything further to the MemDC<br />
<br />
   <br />
  MemDC.SetMapMode(MM_LOENGLISH);<br />
  // STRETCH THE DRAWING ON THE CANVAS I.E. VIEW<br />
  if(ClientDC.StretchBlt(50, 0, 860, -1100, &MemDC, 0, 0, 860,<br />
     -1100, SRCCOPY) == FALSE)<br />
     AfxMessageBox("Failed to draw WFR diagram"); <br />
}<br />
<br />
OnDraw()<br />
{<br />
pDC->StretchBlt(50, 0, 860, -1100, &MemDC, 0, 0, 860, -1100, SRCCOPY);<br />
<br />
}<br />

#include <string>



class String {
public:
	~String() { /**/ };

	String(){};

	String(const String& rhs) {
		*this = rhs;
	}

	String(const std::string& rhs) {
		//
	};
};

class Path {
	public:
		Path() { /**/ };

		Path( const String& filename ); // implementation not even used

		Path( const Path& filePath );		// implementation not even used

		virtual ~Path() { /**/ };

		inline Path& operator= ( const Path& path ){
			filename_ = path.filename_;
			return *this;
		}


		inline Path& operator= ( const String& filename ) {
			filename_ = filename;
			return *this;
		}

		inline operator String () const {
			return filename_;
		}

		inline operator String& () {
			return filename_;
		}

public:
		String filename_;
};


class ConversionClass {
public:
	ConversionClass() {
	}

	String getFileName() {
		return filePath_;
	}

	Path filePath_;
};




int main(int argc, char *argv[])
{
	ConversionClass* conversionClass = new ConversionClass();
	String s = conversionClass->getFileName();

	return 0;
}

d:\code\junk\cvt\Conversion_c.cpp(68) : warning C4927: illegal conversion; more than one user-defined conversion has been implicitly applied
        while calling the constructor 'String::String(const String &)'
        d:\code\junk\cvt\Conversion_c.cpp(13) : see declaration of 'String::String'