?? list0914.cpp
字號:
// Listing 9.14 - Resolving memory leaks
#include <iostream>
class SimpleCat
{
public:
SimpleCat (int age, int weight);
~SimpleCat() {}
int GetAge() { return itsAge; }
int GetWeight() { return itsWeight; }
private:
int itsAge;
int itsWeight;
};
SimpleCat::SimpleCat(int age, int weight)
{
itsAge = age;
itsWeight = weight;
}
SimpleCat & TheFunction();
int main()
{
SimpleCat & rCat = TheFunction();
int age = rCat.GetAge();
std::cout << "rCat is " << age << " years old!" << std::endl;
std::cout << "&rCat: " << &rCat << std::endl;
// How do you get rid of that memory?
SimpleCat * pCat = &rCat;
delete pCat;
// Uh oh, rCat now refers to ??
return 0;
}
SimpleCat &TheFunction()
{
SimpleCat * pFrisky = new SimpleCat(5,9);
std::cout << "pFrisky: " << pFrisky << std::endl;
return *pFrisky;
}
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