David Feuer wrote:
> I'm looking to play around with an array-based structure with
> sub-linear worst-case bounds. Array is pretty awkward in that context
> because creating a new one takes O(n) time to initialize it. Is that
> all true of newByteArray, or can I get one with arbitrary garbage in it
> for cheap?

newByteArray# does not actively clear memory.

However, for large arrays, I think the memory is likely to be freshly
allocated from the OS, and the OS will have cleared it for security
reasons.

Cheers,

Bertram
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