Rules and Restrictions for Structures

Note the following:

• The name is enclosed in slashes, and is optional only in nested structures.

• If slashes are present, a name must be present.

• You can specify the field-list within nested structures only.

• There must be at least one field-declaration.

• Each structure-name must be unique among structures, although you can use structure names for fields in other structures or as variable names.

• The only statements allowed between the STRUCTURE statement and the END STRUCTURE statement are field-declaration statements and PARAMETER statements. A PARAMETER statement inside a structure declaration block is equivalent to one outside.