?? list1402.cpp
字號:
// Listing 14.2 Using dynamic_cast.
// Using rtti
#include <iostream>
using namespace std;
enum TYPE { HORSE, PEGASUS };
class Horse
{
public:
virtual void Gallop(){ cout << "Galloping...\n"; }
private:
int itsAge;
};
class Pegasus : public Horse
{
public:
virtual void Fly()
{cout<<"I can fly! I can fly! I can fly!\n";}
};
const int NumberHorses = 5;
int main()
{
Horse* Ranch[NumberHorses];
Horse* pHorse;
int choice,i;
for (i=0; i<NumberHorses; i++)
{
cout << "(1)Horse (2)Pegasus: ";
cin >> choice;
if (choice == 2)
pHorse = new Pegasus;
else
pHorse = new Horse;
Ranch[i] = pHorse;
}
cout << endl;
for (i=0; i<NumberHorses; i++)
{
Pegasus *pPeg = dynamic_cast< Pegasus *> (Ranch[i]);
if (pPeg != NULL)
pPeg->Fly();
else
cout << "Just a horse\n";
delete Ranch[i];
}
return 0;
}
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