From: Laurent <daemon2@internet.lu>
Subject: Re: Problem implementing Iterators
Date: Tue, 27 Jan 2015 10:06:42 -0800 (PST)
Date: 2015-01-27T10:06:42-08:00 [thread overview]
Message-ID: <016b982c-d376-4db4-bb7c-37561e7903d2@googlegroups.com> (raw)
In-Reply-To: <ma8jee$1ci$1@dont-email.me>
> change
> L1 : GL_String.List ;
> to
> L1 : aliased GL_String.List ;
Ok thanks works now. An easier solution than what I tried. Was writing the message while you posted yours :)
>Think (/= knowing) I have found the beginning of the solution
>
> type Element_Type is private;
> type Element_Ptr is access all Element_Type;
> with procedure Display_Element (Item : in Element_Type);
>
>(...)
>
>private
>
> type List_Node;
> type List_Ptr is access List_Node;
> type List_Node is record
> Element : aliased Element_Ptr;
> Next : List_Ptr;
> Previous:List_Ptr;
> end record;
>
>the only problem I have now is that when I want to instantiate the package I get:
>
>23:4 missing actual "Element_Ptr"?
>
>When I changed Element_Type to Element_Ptr I got the message that Element_Type is missing? >Or do I have to provide both?
Would that actually have worked? Perhaps the additional Element_Ptr was't needed at all?
Thanks
next prev parent reply other threads:[~2015-01-27 18:06 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-27 13:54 Problem implementing Iterators Laurent
2015-01-27 16:24 ` AdaMagica
2015-01-27 17:26 ` Laurent
2015-01-27 17:55 ` Björn Lundin
2015-01-27 18:06 ` Laurent [this message]
2015-01-27 18:43 ` Björn Lundin
2015-01-27 20:58 ` Jeffrey Carter
2015-01-28 12:20 ` Björn Lundin
2015-01-28 16:42 ` AdaMagica
2015-01-28 20:14 ` Laurent
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