From 743e6a296d05d45ecb3e70873764235e0c36cbbc Mon Sep 17 00:00:00 2001
From: Brendan Hansen <brendan.f.hansen@gmail.com>
Date: Wed, 6 Dec 2023 10:29:30 -0600
Subject: [PATCH] fixed: critical bug in `iter.fold` producing wrong values

---
 core/container/iter.onyx | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/core/container/iter.onyx b/core/container/iter.onyx
index ca4f8252..e37de430 100644
--- a/core/container/iter.onyx
+++ b/core/container/iter.onyx
@@ -749,11 +749,13 @@ fold :: macro (it: $T/Iterable, init: $R, combine: $S) =>
 
 #overload
 fold :: (it: Iterator($T), initial_value: $R, combine: (T, R) -> R) -> R {
+    result := initial_value;
+
     for value: it {
-        initial_value = combine(value, initial_value);
+        result = combine(value, result);
     }
 
-    return initial_value;
+    return result;
 }
 
 
-- 
2.25.1