In std::expected , how do you check whether a value or error is held?

e.ok(), the dedicated member testing for a held value

e.is_error() only, since has_value() is not provided

You cannot check at all, it throws on the wrong side

e.has_value() or the boolean conversion operator

Multiple ChoiceIntermediate 45s

expected has_value check

In std::expected<int, std::error_code>, how do you check whether a value or error is held?

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