Index - U
| UArray | Data.Yarr.Base, Data.Yarr.Repr.Delayed, Data.Yarr.Repr.Separate, Data.Yarr.Repr.Foreign, Debug.Yarr, Data.Yarr.Repr.Boxed, Data.Yarr.Convolution, Data.Yarr | 
| unchecked | Debug.Yarr, Data.Yarr.Repr.Boxed | 
| unrolledFill | Data.Yarr.Shape | 
| unrolledFill# | Data.Yarr.Utils.LowLevelFlow | 
| unrolledFoldl | Data.Yarr.Shape | 
| unrolledFoldl# | Data.Yarr.Utils.LowLevelFlow | 
| unrolledFoldr | Data.Yarr.Shape | 
| unrolledFoldr# | Data.Yarr.Utils.LowLevelFlow | 
| unsafeFromForeignPtr | Data.Yarr.Repr.Foreign, Data.Yarr | 
| unsafeMapSlices | Data.Yarr.Repr.Separate, Data.Yarr | 
| USource | Data.Yarr.Base, Data.Yarr | 
| UTarget | Data.Yarr.Base, Data.Yarr | 
| UVecSource | Data.Yarr.Base, Data.Yarr | 
| UVecTarget | Data.Yarr.Base, Data.Yarr |