From 554dfb038fb8b7dadbf8137c7cc3ade484292af2 Mon Sep 17 00:00:00 2001
From: Florian Albrechtskirchinger <falbrechtskirchinger@gmail.com>
Date: Sun, 1 May 2022 13:12:28 +0200
Subject: [PATCH] Disable regression test for #1647 on ICPC (C++20)

---
 tests/src/unit-regression2.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tests/src/unit-regression2.cpp b/tests/src/unit-regression2.cpp
index 5eceaaf5e..04cbac679 100644
--- a/tests/src/unit-regression2.cpp
+++ b/tests/src/unit-regression2.cpp
@@ -512,12 +512,15 @@ TEST_CASE("regression tests 2")
 
     SECTION("issue #1647 - compile error when deserializing enum if both non-default from_json and non-member operator== exists for other type")
     {
+        // does not compile on ICPC when targeting C++20
+#if !(defined(__INTEL_COMPILER) && __cplusplus >= 202000)
         {
             json j;
             NonDefaultFromJsonStruct x(j);
             NonDefaultFromJsonStruct y;
             CHECK(x == y);
         }
+#endif
 
         auto val = nlohmann::json("one").get<for_1647>();
         CHECK(val == for_1647::one);