From cf1873fe48c4a9245b7a0b7b498e3346e4a727c5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rimas=20Misevi=C4=8Dius?= <rmisev3@gmail.com>
Date: Mon, 21 Oct 2024 19:52:48 +0300
Subject: [PATCH] Use constexpr if in checked_diff function

---
 include/upa/util.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/upa/util.h b/include/upa/util.h
index 49c02bd..92b2799 100644
--- a/include/upa/util.h
+++ b/include/upa/util.h
@@ -56,7 +56,7 @@ inline Out checked_diff(T a, T b) {
         const UT diff = static_cast<UT>(static_cast<UT>(a) - static_cast<UT>(b));
         if (diff <= unsigned_limit<Out>::max())
             return static_cast<Out>(diff);
-    } else if (std::is_signed_v<Out>) {
+    } else if constexpr (std::is_signed_v<Out>) {
         // b > a ==> diff >= 1
         const UT diff = static_cast<UT>(static_cast<UT>(b) - static_cast<UT>(a));
         if (diff <= unsigned_limit<Out>::min())