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From: "Jeffrey R. Carter" <spam.jrcarter.not@spam.acm.org>
Newsgroups: comp.lang.ada
Subject: Re: What is the best way to convert Integer to Short_Short_Integer?
Date: Thu, 10 Jun 2010 20:14:15 -0700
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Date: 2010-06-10T20:14:15-07:00
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You convert between numeric types by using a type conversion:

I : Integer := Integer'Last;
S : Short_Short_Integer; -- Not portable
...
S := Short_Short_Integer (I);

If the value of I is not within the range of Short_Short_Integer, the conversion 
will raise Constraint_Error.

This is basic Ada, and if it's not what you want, then you should use another 
term than "convert" (and a lengthy explanation of what you're trying to achieve 
and why is probably in order).

-- 
Jeff Carter
"In the frozen land of Nador they were forced to
eat Robin's minstrels, and there was much rejoicing."
Monty Python & the Holy Grail
70