From 5f7f48be9b8227e94a637a45c46e208fd2fe0343 Mon Sep 17 00:00:00 2001
From: Abtin Keshavarzian <abtink@google.com>
Date: Fri, 23 Sep 2022 09:05:32 -0700
Subject: [PATCH] [equatable] update `Equatable` to ensure CRTP-style use
 (#8199)

This commit updates `Equatable<Type>` to ensure CRTP-style use.
---
 src/core/common/equatable.hpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/core/common/equatable.hpp b/src/core/common/equatable.hpp
index 06fdda993..d9130150f 100644
--- a/src/core/common/equatable.hpp
+++ b/src/core/common/equatable.hpp
@@ -87,7 +87,10 @@ public:
      * @retval FALSE  If the two `Type` instances are not equal.
      *
      */
-    bool operator==(const Type &aOther) const { return memcmp(this, &aOther, sizeof(Type)) == 0; }
+    bool operator==(const Type &aOther) const
+    {
+        return memcmp(static_cast<const Type *>(this), &aOther, sizeof(Type)) == 0;
+    }
 };
 
 } // namespace ot