From 503f07c1e006c9b4bc22a24d8e80fcf68fd9ad3e Mon Sep 17 00:00:00 2001
From: "Po-Yen, Chen" <PoYen.Chen@amd.com>
Date: Fri, 19 Aug 2022 11:34:19 -0400
Subject: [PATCH] Add constraint to check_err() input reference type

---
 library/include/ck/library/utility/check_err.hpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/library/include/ck/library/utility/check_err.hpp b/library/include/ck/library/utility/check_err.hpp
index 0f0cc51bf8..e8660f3c30 100644
--- a/library/include/ck/library/utility/check_err.hpp
+++ b/library/include/ck/library/utility/check_err.hpp
@@ -153,11 +153,11 @@ check_err(const std::vector<T>& out,
 template <typename Out, typename Ref>
 std::enable_if_t<
 #ifdef CK_EXPERIMENTAL_BIT_INT_EXTENSION_INT4
-    (is_signed_integral_v<Out> || std::is_same_v<Out, ck::int4_t>)&&
+    (is_signed_integral_v<Out> || std::is_same_v<Out, ck::int4_t>)&&(
+        is_signed_integral_v<Ref> || std::is_same_v<Ref, ck::int4_t>)&&
 #else
-    is_signed_integral_v<Out> &&
+    is_signed_integral_v<Out> && is_signed_integral_v<Ref> &&
 #endif
-        is_signed_integral_v<Ref> &&
         (sizeof(Out) <= sizeof(Ref) && sizeof(Ref) <= sizeof(int64_t)) &&
         !std::is_same_v<Out, bhalf_t>,
     bool>