Here is a list of all documented struct and union fields with links to the struct/union documentation for each field:

### - u -

- uninit_read : SaveLoadFormat
- uninit_write : SaveLoadFormat
- units : LocaleSettings
- unpaid_cargo : CargoList
- UnpaidCargo() : CargoList
- UnshareOrders() : AIOrder
- UpdateFirstFreeIndex() : OldMemoryPoolBase
- UpdateOrderTimetable() : OrderList
- used : AILog::LogData
- UsePaletteAnimation() : Blitter