From d53abf5bf1a9481e8a395f033fab144df11ec3de Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A9a=20Saviot?= <lea.saviot@numworks.com>
Date: Mon, 2 Jul 2018 17:34:31 +0200
Subject: [PATCH] [poincare] Remove warning on unused variable

---
 poincare/include/poincare/tree_pool.h | 6 ++++--
 poincare/src/tree_node.cpp            | 5 ++++-
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/poincare/include/poincare/tree_pool.h b/poincare/include/poincare/tree_pool.h
index 83d4cd987..e88ed52a4 100644
--- a/poincare/include/poincare/tree_pool.h
+++ b/poincare/include/poincare/tree_pool.h
@@ -65,9 +65,11 @@ public:
 
   int numberOfNodes() const {
     int count = 0;
-    AllPool nodes = const_cast<TreePool *>(this)->allNodes();
-    for (TreeNode * t : nodes) {
+    TreeNode * firstNode = first();
+    TreeNode * lastNode = last();
+    while (firstNode != lastNode) {
       count++;
+      firstNode = firstNode->next();
     }
     return count;
   }
diff --git a/poincare/src/tree_node.cpp b/poincare/src/tree_node.cpp
index 7e59cdbad..56c863bb3 100644
--- a/poincare/src/tree_node.cpp
+++ b/poincare/src/tree_node.cpp
@@ -93,8 +93,11 @@ TreeNode * TreeNode::editableRootTree() {
 
 int TreeNode::numberOfDescendants(bool includeSelf) const {
   int result = includeSelf ? 1 : 0;
-  for (TreeNode * child : depthFirstChildren()) {
+  TreeNode * nextSiblingNode = nextSibling();
+  TreeNode * currentNode = next();
+  while (currentNode != nextSiblingNode) {
     result++;
+    currentNode = currentNode->next();
   }
   return result;
 }