diff options
Diffstat (limited to 'src/finite_map.ml')
| -rw-r--r-- | src/finite_map.ml | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/finite_map.ml b/src/finite_map.ml index 3058e0c9..fd0a5553 100644 --- a/src/finite_map.ml +++ b/src/finite_map.ml @@ -93,7 +93,11 @@ module Fmap_map(Key : Set.OrderedType) : Fmap let insert m (k,v) = M.add k v m let union m1 m2 = M.merge (fun k v1 v2 -> match v2 with | None -> v1 | Some _ -> v2) m1 m2 - let intersect m1 m2 = m2 (*WRITE ME TODO*) + let intersect m1 m2 = + M.fold (fun k v res -> + if (M.mem k m2) + then M.add k v res + else res) M.empty m1 let merge f m1 m2 = M.merge f m1 m2 let apply m k = try |