qt-creator/tests/unit/unittest/data/complete_smartpointer.cpp

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namespace std {
template<class Type, class... Args>
class unique_ptr {};

template<class Type, class... Args>
class shared_ptr {};

template<class Type, class... Args>
unique_ptr<Type> make_unique(Args&&... args);

template<class Type, class... Args>
shared_ptr<Type> make_shared(Args&&... args);
} // namespace std

template<class Type>
class QSharedPointer
{
public:
    template<class... Args>
    static QSharedPointer<Type> create(Args&&... args);
};

class Bar
{
public:
    Bar();
    Bar(int, int);
};
void f2()
{
    std::unique_ptr<Bar> bar = std::make_unique<Bar>();
    std::shared_ptr<Bar> bar2 = std::make_shared<Bar>();
    QSharedPointer<Bar> bar3 = QSharedPointer<Bar>::create();
}