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| // weak_ptr::swap example #include <iostream> #include <memory> int main () { std::shared_ptr<int> sp1 (new int(10)); std::shared_ptr<int> sp2 (new int(20)); std::weak_ptr<int> wp1(sp1); std::weak_ptr<int> wp2(sp2); wp1.swap(wp2); std::cout << "sp1 -> " << *sp1 << '\n'; std::cout << "sp2 -> " << *sp2 << '\n'; std::cout << "wp1 -> " << *wp1.lock() << '\n'; std::cout << "wp2 -> " << *wp2.lock() << '\n'; return 0; }
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