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From: tmoran@acm.org
Newsgroups: comp.lang.ada
Subject: Re: How to convert a string containing two hex digits to a character?
Date: Wed, 6 Jan 2010 05:17:57 +0000 (UTC)
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Date: 2010-01-06T05:17:57+00:00
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  Hex_Pair : String(1 .. 2) := "7C";

  Char : Character
    := Character'val(Integer'value("16#" & Hex_Pair & "#"));

Of course if this is homework in an Intro to Ada class, the teacher may not
believe you came up with this by yourself.