Node:Protected Parameters, Next:Conformant Arrays, Up:Parameters

#### Parameters declared as `protected` or `const`

All the following works in GPC:

    procedure Foo (protected a, b, c: Integer);    { 3 arguments }
    procedure Foo (a, b, c, protected: Integer);   { 4 arguments }
    procedure Foo (a, b, protected, c: Integer);   { 4 arguments }
    procedure Foo (protected: Integer);            { 1 argument  }
    procedure Foo (var protected: Integer);        { 1 argument  }
    procedure Foo (protected protected: Integer);  { 1 argument  }

Furthermore, GPC supports `const`, according to BP, which is equivalent to either `protected` or `protected var`, up to the compiler's discretion.