From ebf1fc7ca4dc379e9bdbf713edaf639f21b1609c Mon Sep 17 00:00:00 2001
From: Max Kellermann <mk@cm4all.com>
Date: Mon, 6 Nov 2023 12:39:26 +0100
Subject: [PATCH] util/IntrusiveList: convert static_assert to concept check

---
 src/util/IntrusiveList.hxx | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/util/IntrusiveList.hxx b/src/util/IntrusiveList.hxx
index 99bb211e2..23715d11f 100644
--- a/src/util/IntrusiveList.hxx
+++ b/src/util/IntrusiveList.hxx
@@ -72,9 +72,8 @@ public:
 			siblings.next = nullptr;
 	}
 
-	bool is_linked() const noexcept {
-		static_assert(mode >= IntrusiveHookMode::TRACK);
-
+	bool is_linked() const noexcept
+		requires(mode >= IntrusiveHookMode::TRACK) {
 		return siblings.next != nullptr;
 	}