Fixed #7203 (Better syntax error, handle array declaration with @)

lib/cppcheck.cpp

@@ -441,6 +441,7 @@ unsigned int CppCheck::checkFile(const std::string& filename, const std::string
                 ErrorLogger::ErrorMessage::FileLocation loc;
                 if (e.token) {
                     loc.line = e.token->linenr();
+                    loc.col = e.token->col();
                     const std::string fixedpath = Path::toNativeSeparators(mTokenizer.list.file(e.token));
                     loc.setfile(fixedpath);
                 } else {

lib/tokenize.cpp

@@ -3817,11 +3817,12 @@ bool Tokenizer::simplifyTokenList1(const char FileName[])
     // When the assembly code has been cleaned up, no @ is allowed
     for (const Token *tok = list.front(); tok; tok = tok->next()) {
         if (tok->str() == "(") {
+            const Token *tok1 = tok;
             tok = tok->link();
             if (!tok)
-                syntaxError(nullptr);
+                syntaxError(tok1);
         } else if (tok->str() == "@") {
-            syntaxError(nullptr);
+            syntaxError(tok);
         }
     }
 
@@ -9408,6 +9409,12 @@ void Tokenizer::simplifyAt()
             Token::eraseTokens(tok,tok->tokAt(5));
         }
 
+        // array declaration
+        if (Token::Match(tok, "] @ %num% ;")) {
+            tok->isAtAddress(true);
+            Token::eraseTokens(tok,tok->tokAt(3));
+        }
+
         // keywords in compiler from cosmic software for STM8
         // TODO: Should use platform configuration.
         if (Token::Match(tok, "@ builtin|eeprom|far|inline|interrupt|near|noprd|nostack|nosvf|packed|stack|svlreg|tiny|vector")) {

test/testtokenize.cpp

@@ -1073,6 +1073,8 @@ private:
         ASSERT_EQUALS("bool x ;", tokenizeAndStringify("bool x@123:1;"));
         ASSERT_EQUALS("char PORTB ; bool PB3 ;", tokenizeAndStringify("char PORTB @ 0x10; bool PB3 @ PORTB:3;\n"));
 
+        ASSERT_EQUALS("int x [ 10 ] ;", tokenizeAndStringify("int x[10]@0x100;"));
+
         ASSERT_EQUALS("interrupt@ f ( ) { }", tokenizeAndStringify("@interrupt f() {}"));
     }