--- /dev/null
+++ xnu/xnu-8019.80.24/tests/safe_allocation_src/compare.equal.nullptr.cpp
@@ -0,0 +1,45 @@
+//
+// Tests for
+//  template <typename T, typename Alloc, typename TrappingPolicy>
+//  bool operator==(std::nullptr_t, safe_allocation<T, Alloc, TrappingPolicy> const& x);
+//
+//  template <typename T, typename Alloc, typename TrappingPolicy>
+//  bool operator!=(std::nullptr_t, safe_allocation<T, Alloc, TrappingPolicy> const& x);
+//
+//  template <typename T, typename Alloc, typename TrappingPolicy>
+//  bool operator==(safe_allocation<T, Alloc, TrappingPolicy> const& x, std::nullptr_t);
+//
+//  template <typename T, typename Alloc, typename TrappingPolicy>
+//  bool operator!=(safe_allocation<T, Alloc, TrappingPolicy> const& x, std::nullptr_t);
+//
+
+#include <libkern/c++/safe_allocation.h>
+#include <darwintest.h>
+#include "test_utils.h"
+
+struct T { };
+
+template <typename T>
+static void
+tests()
+{
+	{
+		test_safe_allocation<T> const array(10, libkern::allocate_memory);
+		CHECK(!(array == nullptr));
+		CHECK(!(nullptr == array));
+		CHECK(array != nullptr);
+		CHECK(nullptr != array);
+	}
+	{
+		test_safe_allocation<T> const array = nullptr;
+		CHECK(array == nullptr);
+		CHECK(nullptr == array);
+		CHECK(!(array != nullptr));
+		CHECK(!(nullptr != array));
+	}
+}
+
+T_DECL(compare_equal_nullptr, "safe_allocation.compare.equal.nullptr") {
+	tests<T>();
+	tests<T const>();
+}