Colin McAuliffe <[email protected]> writes: > I'd be interested in implementing this, I think I should have some time to > spend on it in a few weeks. I suppose the ISSubset function should > determine which ISs were used to make up a third IS? Can this be done by > having ISSum attach a list of pointers to the constituent ISs to the summed > IS for retrieval by ISSubset?
It could and that would probably be fairly harmless in terms of peak memory usage. An alternative would be to compute a cryptographic hash of the index sets and only store that. This would allow comparison without needing to flatten the index sets to arrays of integers (see current implementation of ISEqual).
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