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Page xiii A Word About Memory 233 Arrays of Pointers 234 Declaring Arrays on the Free Store 235 A Pointer to an Array Versus an Array of Pointers 236 Pointers and Array Names 236 Deleting Arrays on the Free Store 238 char Arrays 239 strcpy() and strncpy() 241 String Classes 242 Summary 243 Q&A 243 Part V Inheritance and Polymorphism 245 Hour 16 Inheritance 247 What Is Inheritance? 247 Inheritance and Derivation 248 The Animal Kingdom 249 The Syntax of Derivation 250 Private Versus Protected 252 Constructors and Destructors 254 Passing Arguments to Base Constructors 256 Overriding Functions 260 Overloading Versus Overriding 262 Hiding the Base Class Method 262 Calling the Base Method 264 Summary 265 Q&A 266 Hour 17 Polymorphism and Derived Classes 267 Virtual Methods 267 How Virtual Member Functions Work 271 You Can't Get There from Here 273 Slicing 273 Virtual Destructors 276 Virtual Copy Constructors 276 The Cost of Virtual Methods 279 Summary 279 Q&A 280
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