From 537f8db581412400b3260bf9f5ca202cc1cc400f Mon Sep 17 00:00:00 2001
From: Christopher Lam <christopher.lck@gmail.com>
Date: Thu, 17 Aug 2023 08:08:55 +0800
Subject: [PATCH] fixup! silence clang error. use modern iterator traits

---
 gnucash/gnome-utils/gnc-tree-container.hpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/gnucash/gnome-utils/gnc-tree-container.hpp b/gnucash/gnome-utils/gnc-tree-container.hpp
index 0a7b3ed3499..6c9f36e9087 100644
--- a/gnucash/gnome-utils/gnc-tree-container.hpp
+++ b/gnucash/gnome-utils/gnc-tree-container.hpp
@@ -71,9 +71,15 @@ class GncTreeData
 
 // Custom iterator class
 template <typename ModelType>
-class GncTreeIter : public std::iterator<std::forward_iterator_tag, ModelType>
+class GncTreeIter
 {
 public:
+    using iterator_category = std::forward_iterator_tag;
+    using value_type = ModelType;
+    using difference_type = ModelType;
+    using pointer = ModelType*;
+    using reference = ModelType&;
+
     GncTreeIter(GtkTreeModel* model, std::optional<GtkTreeIter> iter) : m_model(model), m_iter(iter) {}
 
     GncTreeIter(GtkTreeModel* model) : m_model (model)