Another try at actually using an nth index cache #164
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This re-uses the cache only between the match operations for a single select iteration which ensures that the selector is not dropped (and its allocation address re-used) while the cache is alive thereby avoiding the ABA problem fixed by 7fdac0a. This does not require any change in user code to benefit from the increased caching even though some Debug and Clone implementations need to be done manually now.
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This re-uses the cache only between the match operations for a single select iteration which ensures that the selector is not dropped (and its allocation address re-used) while the cache is alive thereby avoiding the ABA problem fixed by 7fdac0a.
This does not require any change in user code to benefit from the increased caching even though some Debug and Clone implementations need to be done manually now.