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From: Kilgallen@SpamCop.net (Larry Kilgallen)
Newsgroups: comp.lang.ada
Subject: Re: Attributes 'Version and 'Body_Version
Date: 9 Nov 2001 20:16:37 -0600
Organization: LJK Software
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Date: 2001-11-09T20:16:37-06:00
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In article <yec3d3nij4r.fsf@king.cts.com>, Keith Thompson <kst@cts.com> writes:

> If unit A depends on unit B, a change in B can affect the object
> generated for A even if the source of A is unchanged.  I don't see a
> requirement for A'Version or A'Body_Version to change when this
> happens, though I can see that such a requirement would be useful.

E.3 (5) says:

The version of a compilation unit changes whenever the version
changes for any compilation unit on which it depends semantically.
The version also changes whenever the compilation unit itself
changes in a semantically significant way. It is implementation
defined whether there are other events (such as recompilation)
that result in the version of a compilation unit changing.