std::experimental::observer_ptr<W>::observer_ptr (3) - Linux Man Pages

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

NAME

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