std::experimental::observer_ptr::observer_ptr (3) Linux Manual Page

std::experimental::observer_ptr<W>::observer_ptr – std::experimental::observer_ptr<W>::observer_ptr

Synopsis

constexpr observer_ptr() noexcept;
(1)(library fundamentals TS v2)

    constexpr observer_ptr(nullptr_t) noexcept;

explicit observer_ptr(element_type *p) noexcept;
(2)(library fundamentals TS v2)

    template <class W2>
    (3)(library fundamentals TS v2)

        observer_ptr(observer_ptr<W2> other) noexcept;

observer_ptr(const observer_ptr &other) = default;
(4)(library fundamentals TS v2)(implicitly declared)

    observer_ptr(observer_ptr &&other) = default;
(5)(library fundamentals TS v2)(implicitly declared)

1) Constructs an observer_ptr that has no corresponding watched object.
2) Constructs an observer_ptr that watches p.
3) Constructs an observer_ptr that watches other.get(). This constructor does not participate in overload resolution unless W2* is convertible to element_type*.
4-5) Implicitly declared copy and move constructors. Constructs an observer_ptr that watches other.get().

Parameters

p – a pointer to an object to watch
other – another observer_ptr to copy from