Re: [Haskell-cafe] How to use arrays efficiently?

"Lauri Oksanen" writes:

Thanks for help. I did some tests with UArray and it does the trick. The problem remaining is, how to implement UArray Int (Double, Double, Double)?

As (UArray Int Double, UArray Int Double, UArray Int Double). Or as UArray Int Double, but with a specialized lookup function: mylookup array index = (array!3*index, array!3*index+1, array!3*index+2) I guess it would be possible to have UArray Int (# Double, Double, Double #) - packing all three Doubles unboxed into the array, but I've no clue how to go about automating that. -k -- If I haven't seen further, it is by standing in the footprints of giants