std::bad_optional_access (3) Linux Manual Page

std::bad_optional_access – std::bad_optional_access

Synopsis

Defined in header <optional>
class bad_optional_access; (since C++17)
Defines a type of object to be thrown by std::optional::value when accessing an optional object that does not contain a value.
 std-bad optional access-inheritance-lwg2806.svg
Inheritance diagram

Member functions

              constructs the exception object
constructor (public member function)

Inherited from std::exception

Member functions

destructor destroys the exception object
             (virtual public member function of std::exception)
[virtual]

what returns an explanatory string
             (virtual public member function of std::exception)
[virtual]