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-rw-r--r--lib/util.ml4
-rw-r--r--lib/util.mli1
2 files changed, 5 insertions, 0 deletions
diff --git a/lib/util.ml b/lib/util.ml
index ebade654ef..2a60ad7b02 100644
--- a/lib/util.ml
+++ b/lib/util.ml
@@ -626,6 +626,10 @@ let rec list_remove_first a = function
| b::l -> b::list_remove_first a l
| [] -> raise Not_found
+let rec list_remove_assoc_in_triple x = function
+ | [] -> []
+ | (y,_,_ as z)::l -> if x = y then l else z::list_remove_assoc_in_triple x l
+
let list_add_set x l = if List.mem x l then l else x::l
let list_eq_set l1 l2 =
diff --git a/lib/util.mli b/lib/util.mli
index 7e351e2705..a341fa5a29 100644
--- a/lib/util.mli
+++ b/lib/util.mli
@@ -137,6 +137,7 @@ val list_for_all_i : (int -> 'a -> bool) -> int -> 'a list -> bool
val list_except : 'a -> 'a list -> 'a list
val list_remove : 'a -> 'a list -> 'a list
val list_remove_first : 'a -> 'a list -> 'a list
+val list_remove_assoc_in_triple : 'a -> ('a * 'b * 'c) list -> ('a * 'b * 'c) list
val list_for_all2eq : ('a -> 'b -> bool) -> 'a list -> 'b list -> bool
val list_sep_last : 'a list -> 'a * 'a list
val list_try_find_i : (int -> 'a -> 'b) -> int -> 'a list -> 'b