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From: "M R Goodwin" <mgoodwinSPAMMY@redrocketconsortium.com>
Newsgroups: comp.lang.ada
Subject: Looping over a tagged record?
Date: 19 Jun 2001 20:39:05 GMT
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Date: 2001-06-19T20:39:05+00:00
List-Id: <comp.lang.ada>

Hi!

This is a part practical, and a part 'I wonder' type problem.
I have a tagged record that is pretty big.  Most, but not all of
the elements in it are a bounded string type.  Because I don't feel
like the typing and all I would need to do to assign and later change
values, I was wondering if there is anyway to loop over all elements in
the record, checking their type and then taking the right action...

type Big_record is tagged record
a1 : String_60;
a2 : String_60;
n1 : Integer;
...
a30 : String_60;
end record;

And I want to do something like:
(And yes, I know its not Ada code!)
For I in ?number of elements? loop
	if I is Integer then Blah, blah
	elsif I is String_60 Blah, Blah.
end;


I've been messing around with it, and have not come to any workable
solution.

Thanks for the help,

Matthew