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-rw-r--r--src/gleam/list.gleam14
1 files changed, 13 insertions, 1 deletions
diff --git a/src/gleam/list.gleam b/src/gleam/list.gleam
index 9c554f7..8beeeb9 100644
--- a/src/gleam/list.gleam
+++ b/src/gleam/list.gleam
@@ -790,7 +790,19 @@ pub fn find_map(
pub fn all(in list: List(a), satisfying predicate: fn(a) -> Bool) -> Bool {
case list {
[] -> True
- [x, ..rest] -> predicate(x) && all(rest, predicate)
+ list -> all_tail_recursive(list, predicate, True)
+ }
+}
+
+fn all_tail_recursive(
+ list: List(a),
+ predicate: fn(a) -> Bool,
+ accumulator: Bool,
+) -> Bool {
+ case list {
+ [] -> accumulator
+ [x, ..rest] ->
+ all_tail_recursive(rest, predicate, accumulator && predicate(x))
}
}