From 78d28063c48f3e18ed80bc5aa9b688f5cd736d08 Mon Sep 17 00:00:00 2001
From: Max Kellermann <mk@cm4all.com>
Date: Thu, 21 Sep 2023 13:14:16 +0200
Subject: [PATCH] util/IntrusiveForwardList: push_{front,back}() returns
 iterator

---
 src/util/IntrusiveForwardList.hxx | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/util/IntrusiveForwardList.hxx b/src/util/IntrusiveForwardList.hxx
index ea105b591..f6e1532f9 100644
--- a/src/util/IntrusiveForwardList.hxx
+++ b/src/util/IntrusiveForwardList.hxx
@@ -368,7 +368,7 @@ public:
 		return {&ToNode(t)};
 	}
 
-	void push_front(reference t) noexcept {
+	iterator push_front(reference t) noexcept {
 		auto &new_node = ToNode(t);
 
 		if constexpr (options.cache_last)
@@ -378,9 +378,11 @@ public:
 		new_node.next = head.next;
 		head.next = &new_node;
 		++counter;
+
+		return iterator_to(t);
 	}
 
-	void push_back(reference t) noexcept
+	iterator push_back(reference t) noexcept
 		requires(options.cache_last) {
 		auto &new_node = ToNode(t);
 		new_node.next = nullptr;
@@ -388,6 +390,8 @@ public:
 		last_cache.value = &new_node;
 
 		++counter;
+
+		return iterator_to(t);
 	}
 
 	static iterator insert_after(iterator pos, reference t) noexcept