std::bad_optional_access

 

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std::optional

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bad_optional_access

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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.

Inheritance diagram

Member functions

(constructor)

constructs the exception object (public member function)

Inherited from std::exception

Member functions

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