From af7a6baaf9c84ec84e773a922acd9b326f502f93 Mon Sep 17 00:00:00 2001
From: cyborg1811m <patrick@maschek.info>
Date: Tue, 6 Feb 2024 22:11:25 +0100
Subject: [PATCH] const_list: added owner to tail node

---
 include/const_list.h | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/include/const_list.h b/include/const_list.h
index a301b6b..219ac72 100644
--- a/include/const_list.h
+++ b/include/const_list.h
@@ -84,7 +84,7 @@ namespace cc {
 			using const_reverse_iterator = std::reverse_iterator<const_iterator>;
 			
 		private:
-			const_list_node<Node> _tail;
+			const_list_node<Node> _tail { this };
 			
             std::size_t _size = 0;
 
@@ -202,6 +202,8 @@ namespace cc {
 			constexpr void on_delete(void (*cb)()) noexcept;
 		
 		private:
+			constexpr explicit const_list_node(const_list<D> *owner) : _owner(owner) { asserts(); };
+			
 			constexpr void push_before(const_list_node *node) noexcept;
 			constexpr void unlink() noexcept;
 
@@ -332,7 +334,6 @@ namespace cc {
 		for (auto& value : values) {
 			// it's operator-> may fail as it could be the tail node
 			it._node->push_before(std::addressof(value.get()));
-			value.get()._owner = this;
 		}
 
 		_size += values.size();
@@ -437,7 +438,6 @@ namespace cc {
 			if (comp(*first2, *first1)) {
 				auto next = std::next(first2);
 
-				first2._node->_owner = this;
 				first1._node->push_before(first2._node);
 
 				first2 = next;
@@ -449,7 +449,6 @@ namespace cc {
 		while (first2 != last2) {
 			auto next = std::next(first2);
 
-			first2._node->_owner = this;
 			_tail.push_before(first2._node);
 
 			first2 = next;
@@ -475,7 +474,6 @@ namespace cc {
 			if (comp(*first2, *first1)) {
 				auto next = std::next(first2);
 
-				first2._node->_owner = this;
 				first1._node->push_before(first2._node);
 
 				first2 = next;
@@ -487,7 +485,6 @@ namespace cc {
 		while (first2 != last2) {
 			auto next = std::next(first2);
 
-			first2._node->_owner = this;
 			_tail.push_before(first2._node);
 
 			first2 = next;
@@ -577,6 +574,8 @@ namespace cc {
 		
 		_prev->_next = node;
 		_prev = node;
+		
+		node->_owner = _owner;
 	}
 
 } // cc