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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug other/42540] c++ error message [vtable undefined] is unhelpful
Date: Mon, 14 Mar 2022 17:15:18 +0000	[thread overview]
Message-ID: <bug-42540-4-WSFSMSeUO3@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-42540-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=42540

--- Comment #17 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Eyal Rozenberg from comment #16)
> I'm not quite sure what a key function is,

Then read the link I gave you in PR 104918 comment 1.


> Not just learners. If you have a large class with many methods, whose
> implementation is spread across many files, it can take quite a bit of time
> to figure out which method implementation is missing.

The first one. They key function is the first non-inline, non-pure virtual
function. Read the wiki page. I didn't write that page and suggest you read it
just for fun.

The linker could easily say that, with no changes from GCC. That belongs in the
binutils bugzilla though.

  parent reply	other threads:[~2022-03-14 17:15 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <bug-42540-4@http.gcc.gnu.org/bugzilla/>
2011-03-17 15:41 ` manu at gcc dot gnu.org
2011-03-17 16:17 ` jyasskin at gcc dot gnu.org
2020-07-22 13:56 ` redi at gcc dot gnu.org
2020-07-22 13:57 ` redi at gcc dot gnu.org
2020-07-22 13:57 ` redi at gcc dot gnu.org
2022-03-14 14:20 ` redi at gcc dot gnu.org
2022-03-14 14:38 ` eyalroz1 at gmx dot com
2022-03-14 17:15 ` redi at gcc dot gnu.org [this message]
2022-03-14 17:22 ` redi at gcc dot gnu.org
2022-03-16 20:13 ` eyalroz1 at gmx dot com
2022-03-16 20:34 ` redi at gcc dot gnu.org
2022-03-16 20:40 ` eyalroz1 at gmx dot com
2022-07-21 21:29 ` redi at gcc dot gnu.org
2022-08-25  9:11 ` manu at gcc dot gnu.org
2022-08-25  9:17 ` manu at gcc dot gnu.org
2022-08-25  9:28 ` redi at gcc dot gnu.org
2009-12-29 14:44 [Bug other/42540] New: " debian-gcc at lists dot debian dot org
2009-12-29 15:06 ` [Bug other/42540] " pinskia at gcc dot gnu dot org
2009-12-29 19:27 ` pinskia at gcc dot gnu dot org
2010-01-06 10:42 ` jwakely dot gcc at gmail dot com
2010-02-24 13:26 ` manu at gcc dot gnu dot org
2010-02-24 14:17 ` rearnsha at gcc dot gnu dot org
2010-07-06 15:47 ` pinskia at gcc dot gnu dot org
2010-07-13 22:56 ` jyasskin at gmail dot com
2010-07-13 22:58 ` pinskia at gcc dot gnu dot org
2010-07-13 22:58 ` pinskia at gcc dot gnu dot org

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