field_attributes
[ [
field-attribute-list ] ] type-specifier declarator-list;
field-attribute-list
Specifies
zero or more field attributes that apply to the structure or union member,
array, or function parameter. Valid field attributes include first_is, last_is,
length_is, max_is, size_is; the usage attributes string,
ignore, and context_handle; the pointer attribute ref, unique,
or ptr; and the union attribute switch_type. Separate multiple
field attributes with commas.
type-specifier
Specifies a base_type,
struct, union, or enum type or type identifier. An
optional storage specification can precede type-specifier.
declarator-list
Specifies one
or more standard C declarators, such as identifiers, pointer declarators, and
array declarators. Separate multiple declarators with commas.
Remarks
Field
attributes are used in structure, union, array, and function-parameter
declarators to define transmission characteristics of the declarator during a
remote procedure call.
Field-attribute
keywords include size_is, max_is, length_is, first_is,
and last_is; the usage attributes string, ignore, and context_handle;
the union switch switch_is;and the pointer attributes ref, unique,
and ptr.
The field
attributes size_is, max_is, length_is, first_is,
and last_is specify the size or range of valid data for the declarator.
These field attributes associate another parameter, structure member, union
member, or constant expression with the declarator.
Field
attributes that are parameters must associate with declarators that are
parameters, while field attributes that are members of structures or unions
must associate with declarators that are members of the same structure or
union.
For
information about the context in which field attributes appear, see arrays, struct, and union.
See Also