Re: Access types to records containing strings

[Martin Krischik <martin@krischik.com>]

Stefan Merwitz wrote:

> Hello everybody,
> 
> it's me again. I need to implement a list containing strings using
> access types. Is there a way to implement this using variable length
> strings:
> 
> private type list;
> private type listobject is record
>      sContent: string(1..30);
>      Next := list;
> end record;
> private type list is access listobject;
> 
> With the knowledge I have till now, I think it's only possible with
> fixed length strings.

Then you have not got very far in your textbook or lessons ;-) .

> Am I right or is there any other way? 

Two options are open:

1) Discriminanted_Record
   http://en.wikibooks.org/wiki/Programming:Ada:Types:record#Discriminanted_Record

2) Unbounded_Strings
   http://www.adaic.org/standards/95lrm/html/RM-A-4-5.html

Martin
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