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From: christoph.grein@eurocopter.com
Newsgroups: comp.lang.ada
Subject: Re: Another problem with "interface"
Date: Mon, 16 Feb 2009 02:26:59 -0800 (PST)
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Date: 2009-02-16T02:26:59-08:00
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I guess you've confused GNAT beyond repair.

The problem is your function Set_A (the rest is OK). Ada 2005 no
longer has return-by-reference functions, so you cannot return an
object of type New_A_Type.