[Haskell-cafe] Array creation in constant time

[Wolfgang Jeltsch]

Hi,

I want to create an array without initializing its elements, so that
array creation takes constant time (modulo heap management). What are
possible approaches for this? I thought about using newArray_ with the
IOUArray type. Is this guaranteed to not initialize any elements and run
in O(1)? Are there other ways?

All the best,
Wolfgang