Fix release configuration warning

Author: devatrun

examples/main.cpp

@@ -65,7 +65,8 @@ static void initalization_and_conversion() noexcept
     // construct long integer
 
     uint128_t u1; // can't be used as constant expressions
-    assert(u1 == u1);
+    u1 = 0;
+    assert(u1 == 0);
 
 
     // construct long integer from unsigned integer value