std::experimental::observer_ptr::operator bool

From cppreference.com
constexpr explicit operator bool() const;
(library fundamentals TS v2)

Checks whether *this has an associated watched object, i.e. whether get() != nullptr.

Parameters

(none)

Return value

true if *this has an associated watched object, false otherwise.

Exceptions

noexcept specification:  
noexcept
  

Example

See also

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