not_std Namespace

This is namespace not_std.

Name	Description
optional_detail	This is namespace not_std::optional_detail.

	Name	Description
	bad_optional_access	This is class not_std::bad_optional_access.
	nullopt_t	This is class not_std::nullopt_t.
	optional	This is class not_std::optional.
	remove_cvref	This is class not_std::remove_cvref.

	Name	Description
	nullopt	This is function not_std::nullopt.