UPPER

 The UPPER function returns the upper bound  for  ordinal  types,
 SET base types, and array indexes.


 Syntax:

    UPPER( x [[, n]] )


 The parameter 'x'  is  a  type  identifier  or  variable  of  an
 ordinal,  SET,  or  ARRAY type.  The parameter 'n' is an integer
 constant that denotes a dimension of 'x', if 'x'  is  an  array.
 If  'x' is an array and if you omit the 'n', VSI Pascal uses the
 default value 1.  If 'x' is an array, UPPER  returns  the  upper
 bound  of  the nth dimension of 'x'.  If 'x' is an ordinal type,
 UPPER returns the upper bound or largest value.   If  'x'  is  a
 SET, UPPER returns the upper bound of the SET base type.