Re: [Haskell-cafe] How to use STArray?

Greg Buchholz writes:

Diff arrays have an immutable interface, but rely on internal updates in place to provide fast functional update operator //.

While a cool concept, ISTR that somebody benchmarked these some time ago, and found the performance to be fairly poor in practice. Has that changed lately, or am I just misremembering? -k -- If I haven't seen further, it is by standing in the footprints of giants