etl/type_traits: fix etl::is_base_of for the case when TDerived is final

ETLCPP · Oct 2, 2024 · e7cbb62 · e7cbb62
1 parent b066e2a
commit e7cbb62
Showing 1 changed file with 2 additions and 7 deletions.
diff --git a/include/etl/type_traits.h b/include/etl/type_traits.h
@@ -627,18 +627,13 @@ namespace etl
   struct is_base_of
   {
   private:
-
-    template<typename T> struct dummy {};
-    struct internal: TDerived, dummy<int>{};
-
     static TBase* check(TBase*) { return (TBase*)0; }
 
-    template<typename T>
-    static char check(dummy<T>*) { return 0; }
+    static char check(...) { return 0; }
 
   public:
 
-    static const bool value = (sizeof(check((internal*)0)) == sizeof(TBase*));
+    static const bool value = (sizeof(check((TDerived*)0)) == sizeof(TBase*));
   };
 
   // For when TBase or TDerived is a fundamental type.