[mercury-users] Structure reuse

[Michael Day]

Hi,

I am struggling to reduce the memory usage of a Mercury program that
iteratively updates a tree structure over several passes.

Mercury does not yet appear to take advantage of structure reuse, so it
seems that the structure is being copied at each iteration, when it could
simply be updated in-place. This is bad.

What is the status of the "reuse" branch of Mercury? Does it actually
exist? Does it work? Is it usable? Can I test it? Will it ever be
integrated with the main trunk?

Michael

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