From: Florian Weimer <fw@deneb.enyo.de>
To: Robert Dewar <dewar@adacore.com>
Cc: Dmitry Antipov <antipov@dev.rtsoft.ru>, gcc@gcc.gnu.org
Subject: Re: Dubious "'foo' might be used uninitialized in this function" message
Date: Wed, 15 Dec 2004 17:33:00 -0000 [thread overview]
Message-ID: <87sm677a1y.fsf@deneb.enyo.de> (raw)
In-Reply-To: <41C0289C.2000209@adacore.com> (Robert Dewar's message of "Wed, 15 Dec 2004 07:05:48 -0500")
* Robert Dewar:
> Here is an example from Ada:
>
> 1. generic
> 2. type R is private;
> |
> >>> warning: type "R" is not referenced
>
> 3. package Q is
> 4. X : Integer;
> 5. end Q;
>
> One of our customers recently complained that this was a false
> positive, because there might be a child unit of Q that references
> R. This is true. However, after quite a bit of dicussion, we
> decided that it was useful to retain the warning, since it is
> rather unusual (though certainly legal) to have entities that
> are referenced ONLY in a child unit, and if we removed the
> warning on this basis, we would lose a lot of useful warnings.
In this case, pragma Unreferenced could be specified in the body of
the parant unit, and it could do the right thing.
next prev parent reply other threads:[~2004-12-15 17:33 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-14 15:23 Dmitry Antipov
2004-12-14 16:40 ` E. Weddington
2004-12-14 17:00 ` Nathan Sidwell
2004-12-15 9:00 ` Dmitry Antipov
2004-12-15 10:02 ` Nathan Sidwell
2004-12-15 12:06 ` Robert Dewar
2004-12-15 17:33 ` Florian Weimer [this message]
2004-12-15 17:34 ` Robert Dewar
2004-12-15 17:52 ` Florian Weimer
2004-12-15 18:00 ` Robert Dewar
2004-12-15 17:33 ` Joe Buck
2004-12-15 18:03 ` Dave Korn
2004-12-15 18:09 ` Robert Dewar
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