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Newsgroups: comp.lang.ada
Date: Thu, 9 Jan 2020 00:25:50 -0800 (PST)
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Subject: Re: decomposing large packages
From: mario.blunk.gplus@gmail.com
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Xref: reader01.eternal-september.org comp.lang.ada:57808
Date: 2020-01-09T00:25:50-08:00
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Thanks Dmitry,
that solves the problem for the moment. When working with subunits, it is not obvious for the newcomer that:
1. the subunit file must be named P-n.adb . Means the same notation must be used as if it where a child unit of P.
2. there is no spec file (P-n.ads) required.
3. in the subunit file P-n.adb there must NOT be an entry like "package body P.n is" (and of course no "end P.n;") as one does in child units.
4. no other procedure or function must exist in P-n.adb .

I wonder why the authors of Ada training books don't point out such things ...