From d2080b0dd38296d02f1e80f9814d2a11a1efe637 Mon Sep 17 00:00:00 2001
From: Jinwoo Kim <kidjinwoo@me.com>
Date: Wed, 31 Dec 2025 23:15:06 +0900
Subject: [PATCH] Optimize overflow for DynamicContainerInfo.updateValue()

---
 Sources/OpenSwiftUICore/Layout/Dynamic/DynamicContainer.swift | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Sources/OpenSwiftUICore/Layout/Dynamic/DynamicContainer.swift b/Sources/OpenSwiftUICore/Layout/Dynamic/DynamicContainer.swift
index 216f0a3a5..a44e40df1 100644
--- a/Sources/OpenSwiftUICore/Layout/Dynamic/DynamicContainer.swift
+++ b/Sources/OpenSwiftUICore/Layout/Dynamic/DynamicContainer.swift
@@ -359,9 +359,9 @@ struct DynamicContainerInfo<Adapter>: StatefulRule, AsyncAttribute, ObservedAttr
         if needsUpdate {
             let totalCount = info.items.count
             let unusedCount = info.unusedCount
-            let inusedCount = totalCount - unusedCount
+            let inusedCount = totalCount &- unusedCount
             let removedCount = info.removedCount
-            let validCount = inusedCount - removedCount
+            let validCount = inusedCount &- removedCount
             if validCount < inusedCount {
                 var slice = info.items[validCount..<inusedCount]
                 slice.sort { $0.removalOrder < $1.removalOrder }