From 87767fb666833b0cef2bab3d34c70d334ae57c67 Mon Sep 17 00:00:00 2001
From: Alexander Mai <amai@users.sf.net>
Date: Sat, 26 Dec 2015 00:21:56 +0100
Subject: [PATCH] #7228 segmentation fault (invalid code) in
 Tokenizer::isFunctionHead

---
 lib/tokenize.cpp     | 2 ++
 test/testgarbage.cpp | 6 ++++++
 2 files changed, 8 insertions(+)

diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index 04cdb3567..ef9090500 100644
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -54,6 +54,8 @@ namespace {
 
 const Token * Tokenizer::isFunctionHead(const Token *tok, const std::string &endsWith) const
 {
+    if (!tok)
+        return nullptr;
     if (tok->str() == "(")
         tok = tok->link();
     if (Token::Match(tok, ") const| [;:{]")) {
diff --git a/test/testgarbage.cpp b/test/testgarbage.cpp
index 7cb36c6d5..38284355a 100644
--- a/test/testgarbage.cpp
+++ b/test/testgarbage.cpp
@@ -211,6 +211,7 @@ private:
         TEST_CASE(garbageCode160); // #7190
         TEST_CASE(garbageCode161); // #7200
         TEST_CASE(garbageCode162); // #7208
+	TEST_CASE(garbageCode163); // #7228
         TEST_CASE(garbageValueFlow);
         TEST_CASE(garbageSymbolDatabase);
         TEST_CASE(garbageAST);
@@ -1392,6 +1393,11 @@ private:
         //7208
         ASSERT_THROW(checkCode("return <<  >>  x return <<  >>  x ", false), InternalError);
     }
+    
+    void garbageCode163() {
+        //7228
+        ASSERT_THROW(checkCode("typedef s f[](){typedef d h(;f)}", false), InternalError);
+    }
 
 };