Add an integer slot on the structs; hash on that? -Jason
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On 3 Dec 2017, at 12:02, Antoniotti Marco antoniotti.marco@disco.unimib.it wrote:
Hi
I am fooling around with a problem that eventually will have to use a hash table on “triples” of “integers” and “structures". Triples I can portably pass to the EQUAL hash table. I cannot use an EQUALP hash table, because I would end up wasting to much time.
Here is the rub: my triples <N, O1, O2> need to use the “object identity” of O1 and O2 (two structs). I could switch to an EQL hash table keyed on (HASH-TRIPLE-KEY N O1 O2). How would you proceed (or write HASH-TRIPLE), while staying as much portable as possible? As you well know SXHASH is practically useless.
Thanks — Marco
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