- u -

• useCount() : B2bits::ReferenceCounter< Derived, CtrType >
• UTCDateOnly() : B2bits::TZTimeHelper::UTCDateOnly , B2bits::UTCDateOnly
• UTCTimeOnly() : B2bits::TZTimeHelper::UTCTimeOnly , B2bits::UTCTimeOnly
• UTCTimestamp() : B2bits::TZTimeHelper::UTCTimestamp , B2bits::UTCTimestamp