Re: Attributes 'Version and 'Body_Version

["Marin David Condic" <dont.bother.mcondic.auntie.spam@[acm.org>]

The important thing about it is that at runtime, a subsystem can detect if
there has been a change in something (either within itself or within
something it is using) from some known point. That doesn't have to be
because the source file was edited and it would be hard to imagine how the
object file could know anything abut that without some kind of recompilation
going on. So its clear to me that the meaning is "This module has been
recompiled/relinked at a different time than the one you know about..." or
"This is the identical compiled/linked image you know about..." The file may
be edited a hundred times, but if it never got waved past the
compiler/linker how is the object file going to know that?

I just thought that the feature would be more useful if the strings were
ordered such that you could detect at runtime "This is a *later*/*earlier*
issue than the one I know about" rather than just detecting that it is
different.

MDC
--
Marin David Condic
Senior Software Engineer
Pace Micro Technology Americas    www.pacemicro.com
Enabling the digital revolution
e-Mail:    marin.condic@pacemicro.com
Web:      http://www.mcondic.com/


"Larry Kilgallen" <Kilgallen@SpamCop.net> wrote in message
news:L9pmQ$PSskWd@eisner.encompasserve.org...
>
> 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.