Miscellaneous

• Headlines: According to Extended Pascal, a Program headline must contain the program's parameters:

      Program Foo ( Input, Output );
  

  In GNU Pascal, headline parameters are optional. If the headline is omitted, a warning is given.
• Case statements: In a case statement, GNU Pascal has otherwise as an alternative to else (according to Extended Pascal):

    case x of
      1: writeln ( 'one' );
      2: writeln ( 'two' );
      otherwise: writeln ( 'many' );
    end (* case *);
  

  If there are two ore more statements following otherwise, they must be grouped with begin and end.
• Char constants: Chars like `#13' or `^M' are not implemented into GNU Pascal.
• Sets: GNU Pascal has a card ( myset ) function for sets which counts their elements.
• Inline: GNU Pasccal allows "inline" Procedures and Functions, while Borland Pascal only allows machine code to be inline: Borland Pascal:

    Function Max ( x, y: Integer ): Integer;
    Inline ( $58 / $59 / $3B / $C1 / $7F / $01 / $91 );
  

  GNU Pascal:

    Inline Function Max ( x, y: Integer ): Integer;
  
    begin (* Max *)
      if x > y then
        Max:= x
      else
        Max:= y;
    end (* Max *);
  

  (Actually, a more general Max is already built-in.) This feature is not so important as it might seem because in optimization level 3 (see above), GNU Pascal automatically "inlines" short Procedures and Functions.