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Page xii Returning a Reference to an Object on the Heap 187 Pointer, Pointer, Who Has the Pointer? 189 Summary 190 Q&A 190 Part IV Power Tools 191 Hour 13 Advanced Functions 193 Overloaded Member Functions 193 Using Default Values 196 Choosing Between Default Values and Overloaded Functions 198 The Default Constructor 198 Overloading Constructors 199 Initializing Objects 199 The Copy Constructor 200 Summary 204 Q&A 204 Hour 14 Operator Overloading 207 Operator Overloading 207 Writing an Increment Function 208 Overloading the Postfix Operator 210 The Difference Between Prefix and Postfix 210 operator+ 212 Overloading operator+ 214 Limitations on Operator Overloading 215 What to Overload 215 operator= 216 Conversion Operators 218 The int() Operator 221 Summary 222 Q&A 222 Hour 15 Arrays 225 What Is an Array? 225 Array Elements 226 Writing Past the End of an Array 227 Fence Post Errors 228 Initializing Arrays 228 Arrays of Objects 229 Multidimensional Arrays 231 Initializing Multidimensional Arrays 232
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