Question

Each of the following class declarations has errors. Locate as many as you can. class Circle { private: double diameter; int centerX; int centerY; public: Circle(double d, int x, int y) { diameter = d; centerX = x; centerY = y; } // Overloaded = operator void Circle=(Circle &right) { diameter = right.diameter; centerX = right.centerX; centerY = right.centerY; } ... Other member functions follow ... };

Short answer

Answer: The changes made to the overloaded '=' operator in the corrected Circle class declaration are: 1. The declaration syntax was corrected by using the keyword "operator" followed by the operator symbol '='. 2. The return type was changed to Circle& (a reference to the Circle object). 3. The operator now returns *this at the end.

Step-by-step solution

Correct the constructor

The constructor in the given class is: ``` Circle(double d, int x, int y) { diameter = d; centerX = x; centerY = y; } ``` This part of the code appears to be correct. The constructor receives three parameters and initializes the class members accordingly.

Fix the overloaded '=' operator

The overloaded '=' operator in the given class is: ``` void Circle=(Circle &right) { diameter = right.diameter; centerX = right.centerX; centerY = right.centerY; } ``` There are multiple errors in this part of the code: 1. The declaration syntax of the overloaded '=' operator is incorrect. To overload an operator, the keyword "operator" should be used, followed by the operator symbol. 2. The return type of the overloaded '=' operator should be Circle& (a reference to the Circle object). 3. The overloaded '=' operator should return *this at the end. Correcting these errors, we get the following code: ``` Circle& operator=(const Circle &right) { diameter = right.diameter; centerX = right.centerX; centerY = right.centerY; return *this; } ```

Final class declaration

After correcting the errors, the updated Circle class declaration is: ``` class Circle { private: double diameter; int centerX; int centerY; public: Circle(double d, int x, int y) { diameter = d; centerX = x; centerY = y; } // Overloaded = operator Circle& operator=(const Circle &right) { diameter = right.diameter; centerX = right.centerX; centerY = right.centerY; return *this; } ... Other member functions follow ... }; ``` Now, the Circle class declaration has the corrected constructor and overloaded '=' operator, and all the errors have been fixed.