From 0ac02b9084c0fa02ffa64397dd22a6155db13ba6 Mon Sep 17 00:00:00 2001
From: Lenny Maiorani <lenny@colorado.edu>
Date: Sun, 18 Apr 2021 10:52:11 -0600
Subject: [PATCH] AK/Complex: C++20-compatible comparison operators

Problem:
- Clang correctly reports non-`const` member function comparison
  operators as ambiguous.

Solution:
- Make them `const`.
---
 AK/Complex.h            | 4 ++--
 AK/Tests/TestRefPtr.cpp | 7 +++++++
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/AK/Complex.h b/AK/Complex.h
index 832ead8b96..6fe71d2efe 100644
--- a/AK/Complex.h
+++ b/AK/Complex.h
@@ -243,13 +243,13 @@ public:
     }
 
     template<AK::Concepts::Arithmetic U>
-    constexpr bool operator==(const Complex<U>& a)
+    constexpr bool operator==(const Complex<U>& a) const
     {
         return (this->real() == a.real()) && (this->imag() == a.imag());
     }
 
     template<AK::Concepts::Arithmetic U>
-    constexpr bool operator!=(const Complex<U>& a)
+    constexpr bool operator!=(const Complex<U>& a) const
     {
         return !(*this == a);
     }
diff --git a/AK/Tests/TestRefPtr.cpp b/AK/Tests/TestRefPtr.cpp
index f823944b44..fed2022af6 100644
--- a/AK/Tests/TestRefPtr.cpp
+++ b/AK/Tests/TestRefPtr.cpp
@@ -119,7 +119,14 @@ TEST_CASE(assign_moved_self)
 {
     RefPtr<Object> object = adopt(*new Object);
     EXPECT_EQ(object->ref_count(), 1u);
+#ifdef __clang__
+#    pragma clang diagnostic push
+#    pragma clang diagnostic ignored "-Wself-move"
+#endif
     object = move(object);
+#ifdef __clang__
+#    pragma clang diagnostic pop
+#endif
     EXPECT_EQ(object->ref_count(), 1u);
 }