pTAL Reference Manual (H06.03+)

Structures

HP pTAL Reference Manual—523746-005

9-64

Structure Pointer

identifier

is the identifier of the new structure pointer.

referral

is the identifier of a structure that provides the structure layout. You can specify any

previously declared structure (including the encompassing structure) or structure

pointer.

REFALIGNED

specifies the base alignment of the structures that the structure pointer will

reference.

references a structure that might not be well-aligned.

indicates that the base of the structure and the fields in the structure are well

aligned in memory

previous-identifier

is the identifier of a simple variable, array, substructure, or pointer previously

declared in the same structure. No index is allowed with this identifier.

The addressing mode and STRING or INT attribute determine the kind of addresses a

structure pointer can contain, as described in Table 9-7 on page 9-50.

Example 9-49. Structure Pointer Redefinition

STRUCT record;

BEGIN

FIXED data;

INT std_link_addr;

INT .std_link (record) = std_link_addr; ! Redefinition

INT(32) ext_link_addr;

INT .EXT ext_link (record) = ext_link_addr; ! Redefinition

END;