From de7906a90327763d5485ab0d6cdae2a66aaa6fb5 Mon Sep 17 00:00:00 2001
From: Florian Albrechtskirchinger <falbrechtskirchinger@gmail.com>
Date: Sat, 17 Sep 2022 15:59:25 +0200
Subject: [PATCH] Fix 'declaration hides global declaration' warning

---
 tests/src/unit-noexcept.cpp | 22 +++++++++-------------
 1 file changed, 9 insertions(+), 13 deletions(-)

diff --git a/tests/src/unit-noexcept.cpp b/tests/src/unit-noexcept.cpp
index 2cac058ce..6c20f3bf1 100644
--- a/tests/src/unit-noexcept.cpp
+++ b/tests/src/unit-noexcept.cpp
@@ -18,9 +18,7 @@ using nlohmann::json;
 
 namespace
 {
-enum test
-{
-};
+enum test {};
 
 struct pod {};
 struct pod_bis {};
@@ -34,20 +32,18 @@ void to_json(json& /*unused*/, pod_bis /*unused*/) {}
 void from_json(const json& /*unused*/, pod /*unused*/) noexcept {}
 void from_json(const json& /*unused*/, pod_bis /*unused*/) {}
 
-json* j = nullptr;
-
 static_assert(noexcept(json{}), "");
-static_assert(noexcept(nlohmann::to_json(*j, 2)), "");
-static_assert(noexcept(nlohmann::to_json(*j, 2.5)), "");
-static_assert(noexcept(nlohmann::to_json(*j, true)), "");
-static_assert(noexcept(nlohmann::to_json(*j, test{})), "");
-static_assert(noexcept(nlohmann::to_json(*j, pod{})), "");
-static_assert(!noexcept(nlohmann::to_json(*j, pod_bis{})), "");
+static_assert(noexcept(nlohmann::to_json(std::declval<json&>(), 2)), "");
+static_assert(noexcept(nlohmann::to_json(std::declval<json&>(), 2.5)), "");
+static_assert(noexcept(nlohmann::to_json(std::declval<json&>(), true)), "");
+static_assert(noexcept(nlohmann::to_json(std::declval<json&>(), test{})), "");
+static_assert(noexcept(nlohmann::to_json(std::declval<json&>(), pod{})), "");
+static_assert(!noexcept(nlohmann::to_json(std::declval<json&>(), pod_bis{})), "");
 static_assert(noexcept(json(2)), "");
 static_assert(noexcept(json(test{})), "");
 static_assert(noexcept(json(pod{})), "");
-static_assert(noexcept(j->get<pod>()), "");
-static_assert(!noexcept(j->get<pod_bis>()), "");
+static_assert(noexcept(std::declval<json>().get<pod>()), "");
+static_assert(!noexcept(std::declval<json>().get<pod_bis>()), "");
 static_assert(noexcept(json(pod{})), "");
 } // namespace