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Because pAnimal is an Animal pointer, it can only see the Animal portion of the class. calling Dog::speak() could return woof, arf, or yip), this kind of solution starts to get awkward and fall apart. It turns out, we can! For reference types, an explicit cast is required if you need to convert from a base type to a derived type: // Create a new derived type. WebAn Invoice should include four data membersa part number (type string), a part description (type string), a quantity of the item being purchased (typeint) and a price per item (type int). In the previous chapter, you learned all about how to use inheritance to derive new classes from existing classes. If you store your objects in a std::vector
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cast base class to derived class c