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- class Base
- {
- public:
- virtual ~Base()
- {
- std::cout << "Hello from ~Base()" << std::endl;
- }
- };
- class Derived : public Base
- {
- public:
- ~Derived()
- {
- std::cout << "Hello from ~Derived()" << std::endl;
- }
- };
- Base *obj = new Derived();
- delete obj;
- Что делает следующий фрагмент кода и почему так делать не нужно?
- int square(volatile int *ptr)
- {
- int a;
- a = *ptr;
- return a * a;
- }
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