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* bijective association
@ 2007-08-05 10:40 tmp123
  0 siblings, 0 replies; only message in thread
From: tmp123 @ 2007-08-05 10:40 UTC (permalink / raw)
  To: caml-list

Hello,

Please, knows someone if there are any module who implements a bijective 
association ( 'a <=> 'b)?

functions should be something like (assuming 't is the type of the 
association):
add : 't -> 'a -> 'b -> 't
find_a  : 't -> 'a -> 'b
find_b : 't -> 'b -> 'a
remove : 't -> 'a -> 't
...

If not, which one could be the best option: use two associative lists, 
two maps, two hash tables or others?

Thanks a lot.


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