anchor.diff:  	'=' '0'//Conflicts with the lexer
    ;
    */
  -   
  +
   
   purespecifier
      : Assign val = Octalliteral
      {if($val.text.compareTo("0")!=0) throw new InputMismatchException(this);}
      ;
   /*Derived classes*/
  -   
  +
   
   baseclause
      : ':' basespecifierlist
  
positive.code:    | Noexcept
     ;
  /*Preprocessing directives*/
     
  
  MultiLineMacro
     : '#' (~ [\n]*? '\\' '\r'? '\n')+ ~ [\n]+ -> channel (HIDDEN)
  
negative.code:    | '{' balancedtokenseq '}'
     ;
  /*Declarators*/
  
  
  initdeclaratorlist
     : initdeclarator
  