Mercurial > urweb
view src/list_key_fn.sml @ 2279:32a407902d3b
Rewrite LRU cache. Now uses one big hash table and is less buggy.
author | Ziv Scully <ziv@mit.edu> |
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date | Wed, 11 Nov 2015 20:01:48 -0500 |
parents | 6bce459ca581 |
children |
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functor ListKeyFn(K : ORD_KEY) : ORD_KEY where type ord_key = K.ord_key list = struct type ord_key = K.ord_key list val rec compare = fn ([], []) => EQUAL | ([], _) => LESS | (_, []) => GREATER | (x::xs, y::ys) => case K.compare (x, y) of EQUAL => compare (xs, ys) | ord => ord end