//: C01:Auto_ptr.cpp // Illustrates the RAII nature of auto_ptr. #include <memory> #include <iostream> #include <cstddef> using namespace std; class TraceHeap { int i; public: static void* operator new(size_t siz) { void* p = ::operator new(siz); cout << "Allocating TraceHeap object on the heap " << "at address " << p << endl; return p; } static void operator delete(void* p) { cout << "Deleting TraceHeap object at address " << p << endl; ::operator delete(p); } TraceHeap(int i) : i(i) {} int getVal() const { return i; } }; int main() { auto_ptr<TraceHeap> pMyObject(new TraceHeap(5)); cout << pMyObject->getVal() << endl; // Prints 5 } ///:~
Listado 2.10. C01/Auto_ptr.cpp