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Module - m12.html

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Meyers: Effective C++ Test Suite for Module - m12.cpp

// Item 12: Copy all parts of an object. 57

class Widget {

public:

	Widget();

	~Widget();

 Widget& operator=( const Widget&  ) ;

private:

	int *Wmember1;

	int *Wmember2;

};

Widget& Widget::operator=( const Widget& rhs ) 

Function Name: operator=() 
 {	
	Wmember1 = rhs.Wmember1; 	// bad,  Wmember2 not used, rule 12
	 return *this;		

 }

Widget& Widget::operator=( const Widget& rhs )

Function Name: operator=() 
 {	
	Wmember1 = rhs.Wmember1;	// good
	Wmember2 = rhs.Wmember2;
	 return *this;		

 }

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