HP Pascal/iX Reference Manual (31502-90022)

3- 3
Ordinal
Ordinal types are types that have a one-to-one correspondence with a
subset of natural numbers. These values are ordered so that each has a
unique ordinal value that indicates its position in a list of all the
values of the type.
Ordinal types include bit16 , bit32 , bit52 , Boolean , char , enumerated ,
integer , shortint , longint , and subrange . Enumerated types are declared
by enumerating all the possible values of the type. Subrange types are
declared by specifying the minimum and maximum values of the subrange.
Integral-types include bit16 , bit32 , bit52 , integer , shortint , longint ,
and subrange of integer .
Sub-integer includes bit16 , shortint , and subrange of integer ;
super-integer includes bit52 and longint . bit32 is a sub-integer when
used with a real operand or used in a real function such as sin;
otherwise, bit32 is a super-integer.
Syntax
Ordinal_type: