[Haskell-cafe] poor perfomance of indexU in uvector package

[Roman Leshchinskiy]

On 16/11/2009, at 22:46, Alexey Khudyakov wrote:

> Problems begin when you need non-contiguous block. Easiest way to so
> is indexing.

FWIW, this operation is called backpermute and is probably exported as bpermute in uvector.

Roman