From e7b587d550a8d1d31dc649a134637a662be1b5b5 Mon Sep 17 00:00:00 2001
From: Max Kellermann <mk@cm4all.com>
Date: Wed, 8 Jun 2022 21:07:45 +0200
Subject: [PATCH] util/CopyConst: use std::add_const

---
 src/util/CopyConst.hxx | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/util/CopyConst.hxx b/src/util/CopyConst.hxx
index 3d38b8d24..b992c6698 100644
--- a/src/util/CopyConst.hxx
+++ b/src/util/CopyConst.hxx
@@ -36,5 +36,5 @@
  */
 template<typename To, typename From>
 using CopyConst = std::conditional_t<std::is_const_v<From>,
-				     const To,
-				     To>;
+				     std::add_const_t<To>,
+				     std::remove_const_t<To>>;