Pointer to undeclared structure-type considered ok?

[Nick Patavalis]

On 2005-02-02, Eljay Love-Jensen <eljay@adobe.com> wrote:
>
> The types used are:
> + int
> + struct foo
> + struct bar*
>
> All those types are complete and defined.
>

I understand where you 're getting to, but for the shake of
discussion, I'll bite :-)

In what sense is the "struct bar" type defined? Because if "struct
bar" is not defined, then how can "struct bar *" be defined? Is it ok
to to have pointer-type whose base type is not (or incompletely)
defined?

/npat