NAME¶

std::experimental::observer_ptr::observer_ptr - std::experimental::observer_ptr::observer_ptr

Synopsis¶

constexpr observer_ptr() noexcept; (1) (library fundamentals TS v2)
constexpr observer_ptr( nullptr_t ) noexcept;
constexpr explicit observer_ptr( element_type* p ) (2) (library fundamentals TS v2)
noexcept;
template<class W2>
constexpr observer_ptr( observer_ptr<W2> other ) (3) (library fundamentals TS v2)
noexcept;
observer_ptr( const observer_ptr& other ) = (4) (library fundamentals TS v2)
default; (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 overload participates
in overload resolution only if 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