Update checkclass.cpp

Author: chrchr-github

lib/checkclass.cpp

@@ -1428,7 +1428,7 @@ void CheckClassImpl::privateFunctions()
 void CheckClassImpl::unusedPrivateFunctionError(const Token* tok1, const Token *tok2, const std::string &classname, const std::string &funcname)
 {
     std::list<const Token *> toks{ tok1 };
-    if (tok2)
+    if (tok2 && tok2 != tok1)
         toks.push_front(tok2);
     reportError(toks, Severity::style, "unusedPrivateFunction", "$symbol:" + classname + "::" + funcname + "\nUnused private function: '$symbol'", CWE398, Certainty::normal);
 }