commit 1f897ded35ea67a79487e68945a1a52e70bba63f
Author: Laurynas Biveinis <laurynas.biveinis@gmail.com>
Date:   Tue May 28 16:53:23 2024 +0300

    Fix bug 113123 (Compilation fails with LLVM 17 and XCode 15.3)
    
    Make mem_root_deque::operator+ and operator- methods const.

diff --git a/include/mem_root_deque.h b/include/mem_root_deque.h
index e144e8f69f5..579a5286da6 100644
--- a/include/mem_root_deque.h
+++ b/include/mem_root_deque.h
@@ -381,12 +381,12 @@ class mem_root_deque {
       return *this;
     }
 
-    Iterator operator+(difference_type offset) {
+    Iterator operator+(difference_type offset) const {
       assert_not_invalidated();
       return Iterator{m_deque, m_physical_idx + offset};
     }
 
-    Iterator operator-(difference_type offset) {
+    Iterator operator-(difference_type offset) const {
       assert_not_invalidated();
       return Iterator{m_deque, m_physical_idx - offset};
     }