Fixed #1828 (### Internal error in Cppcheck. Please report it.)

lib/tokenize.cpp

@@ -1660,6 +1660,18 @@ bool Tokenizer::tokenize(std::istream &code, const char FileName[], const std::s
         return false;
     }
 
+    // check for simple syntax errors..
+    for (Token *tok = _tokens; tok; tok = tok->next())
+    {
+        if (Token::simpleMatch(tok, "> struct {") &&
+            Token::simpleMatch(tok->tokAt(2)->link(), "} ;"))
+        {
+            syntaxError(tok);
+            deallocateTokens();
+            return false;
+        }
+    }
+
     // specify array size..
     arraySize();
 
@@ -6899,7 +6911,26 @@ const Token * Tokenizer::findClassFunction(const Token *tok, const std::string &
     return NULL;
 }
 //---------------------------------------------------------------------------
-// Error message for bad iterator usage..
+
+void Tokenizer::syntaxError(const Token *tok)
+{
+    if (tok)
+    {
+        std::list<ErrorLogger::ErrorMessage::FileLocation> locationList;
+        ErrorLogger::ErrorMessage::FileLocation loc;
+        loc.line = tok->linenr();
+        loc.setfile(file(tok));
+        locationList.push_back(loc);
+        const ErrorLogger::ErrorMessage errmsg(locationList,
+                                               Severity::error,
+                                               "syntax error",
+                                               "syntaxError");
+        if (_errorLogger)
+            _errorLogger->reportErr(errmsg);
+        else
+            Check::reportError(errmsg);
+    }
+}
 
 void Tokenizer::syntaxError(const Token *tok, char c)
 {

lib/tokenize.h

@@ -411,6 +411,10 @@ public:
      */
     bool createLinks();
 
+    /** Syntax error */
+    void syntaxError(const Token *tok);
+
+    /** Syntax error. Example: invalid number of ')' */
     void syntaxError(const Token *tok, char c);
 
     /**

test/testtokenize.cpp

@@ -248,7 +248,7 @@ private:
     std::string tokenizeAndStringify(const char code[], bool simplify = false)
     {
         // tokenize..
-        Tokenizer tokenizer;
+        Tokenizer tokenizer(0, this);
         std::istringstream istr(code);
         tokenizer.tokenize(istr, "test.cpp");
         if (simplify)
@@ -348,10 +348,19 @@ private:
 
     void wrong_syntax()
     {
-        errout.str("");
+        {
-        const std::string code("TR(kvmpio, PROTO(int rw), ARGS(rw), TP_(aa->rw;))");
+            errout.str("");
-        ASSERT_EQUALS("TR ( kvmpio , PROTO ( int rw ) , ARGS ( rw ) , TP_ ( aa . rw ; ) )", tokenizeAndStringify(code.c_str(), true));
+            const std::string code("TR(kvmpio, PROTO(int rw), ARGS(rw), TP_(aa->rw;))");
-        ASSERT_EQUALS("", errout.str());
+            ASSERT_EQUALS("TR ( kvmpio , PROTO ( int rw ) , ARGS ( rw ) , TP_ ( aa . rw ; ) )", tokenizeAndStringify(code.c_str(), true));
+            ASSERT_EQUALS("", errout.str());
+        }
+
+        {
+            errout.str("");
+            const std::string code("struct A { template<int> struct { }; };");
+            ASSERT_EQUALS("", tokenizeAndStringify(code.c_str(), true));
+            ASSERT_EQUALS("[test.cpp:1]: (error) syntax error\n", errout.str());
+        }
     }
 
     void minus()