constexpr address_v6() noexcept;
Postconditions: is_unspecified() == true and scope_id() == 0.
constexpr address_v6(const bytes_type& bytes,
scope_id_type scope = 0);
Remarks: out_of_range if any element of bytes is not in the range [0, 0xFF]. [ Note: For implementations where numeric_limits<unsigned char>::max() == 0xFF, no out-of-range detection is needed. — end note ]
Postconditions: to_bytes() == bytes and scope_id() == scope.