Re: Private discrete type as index

["James S. Rogers" <jimmaureenrogers@worldnet.att.net>]

"AG" <ang@xtra.co.nz> wrote in message
news:hULT9.21355$F63.398611@news.xtra.co.nz...
>
> "James S. Rogers" <jimmaureenrogers@worldnet.att.net> wrote in message
> news:8pLT9.105190$hK4.8530896@bgtnsc05-news.ops.worldnet.att.net...
>
> > At the point of declaration of the array type the index type
> > is not specified as a discrete type. The array type is not private.
> > The nature of the index type must be visible within the scope of
> > the declaration of the array type.
>
> True, and the example you give below is fine *if* you want
> to hide from the user the fact that the construct is an array
> (that's what I meant by "iterator").
>
> However, what if you want to let your clients know that
> that the structure is indeed an array and provide appropriate
> operations on the index but prevent them from directly
> manipulating it?

I am unclear what you mean by "providing appropriate operations"
without allowing direct manipulation. This sounds like an iterator to
me. Please describe what you have in mind instead.

Jim Rogers