std::experimental::observer_ptr::release

From cppreference.com
constexpr element_type* release();
(library fundamentals TS v2)

Stop watching the watched object, if any. get() returns nullptr after the call.

Parameters

(none)

Return value

A pointer to the previously watched object, or nullptr if there was no watched object, i.e. the value which would be returned by get() before the call.

Exceptions

noexcept specification:  
noexcept
  

Example

See also

returns a pointer to the watched object
(public member function)
replaces the watched object
(public member function)