diff --git a/lib/checkpostfixoperator.cpp b/lib/checkpostfixoperator.cpp
index 0c3d798e0..60c1d009d 100644
--- a/lib/checkpostfixoperator.cpp
+++ b/lib/checkpostfixoperator.cpp
@@ -50,9 +50,7 @@ void CheckPostfixOperator::postfixOperator()
 
     const SymbolDatabase *symbolDatabase = mTokenizer->getSymbolDatabase();
 
-    const std::size_t functions = symbolDatabase->functionScopes.size();
-    for (std::size_t i = 0; i < functions; ++i) {
-        const Scope * scope = symbolDatabase->functionScopes[i];
+    for (const Scope * scope : symbolDatabase->functionScopes) {
         for (const Token* tok = scope->bodyStart->next(); tok != scope->bodyEnd; tok = tok->next()) {
             const Variable *var = tok->variable();
             if (!var || !Token::Match(tok, "%var% ++|--"))