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Groups > comp.lang.c++ > #92862
| From | Richard Damon <richard@damon-family.org> |
|---|---|
| Newsgroups | comp.lang.c++ |
| Subject | Re: What does this code print ? |
| Date | 2023-10-15 13:25 -0400 |
| Organization | i2pn2 (i2pn.org) |
| Message-ID | <ugh7b6$1k9qh$2@i2pn2.org> (permalink) |
| References | (1 earlier) <87lec95n0t.fsf@bsb.me.uk> <ugaeqo$2vefi$1@dont-email.me> <ugapal$31eim$1@dont-email.me> <ugegmt$3uo8b$1@dont-email.me> <ugg33f$cf8s$3@dont-email.me> |
On 10/15/23 3:07 AM, Bonita Montero wrote: > Am 14.10.2023 um 18:47 schrieb Richard Damon: > >> Can you point to any words in the standard that allows the lambda >> expression to get "recompiled" for different calling conventions? > > MSVC and clang-cl do that. So, the answer is no. You are relying on an extension to the Standard, that you didn't require. One that perhaps by the Standard, should require a diagnostic to be conforming. > >> Since the lambda has no "auto" parameters, it is NOT a "generic" >> lambda that gets recompiled under different usages, ... > > I didn't say that it is generic but there's an opposite analogy to > generic lambdas that thread local and shared variables are shared > among the different instantiations for different calling conventions. Right, but you created "two lambdas" by using something that violates the standard. Note "Calling Convention" isn't listed as something you are defined to be able to overload on, so there can't actually be two lambda functions with the same name that differ by just calling convention. > >> The fact that others have pointed out that when compiling for current >> operating systems, the common compilers that understand those reserved >> symbols point out that they are just ignored. > > The compiler can't ignore the calling convention since the definition > of the variable and the assignment might be spareate. I just printed > both pointer's addresses and I get different addresses. So there are > only two options left: either there are separate instantiations for > each calling convention or there's additional thunk code for each > calling convention that doesn't mach the standard calling convention. Even by the normal interpreation of the Standard with this extension, I belive the lambda will be generated with the default calling convention. The complier might then generate thunks to handle the differing conventions. I would need to setup an environment to check this, which isn't worth my effort. > >> Did you actually look at the generated code to see that it in fact DID >> get generated twice? ... > > Yes, and as I said both pointers have different addresses. > So, you don't know what it means to look at generated code. Just proves your limitation in knowledge of the subject. Note, I admit when I am going on presumption and not fact, you don't seem to know the difference. Probably because you don't understand what is actually fact or required.
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What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-11 05:30 +0200
Re: What does this code print ? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-10-11 14:03 +0100
Re: What does this code print ? gazelle@shell.xmission.com (Kenny McCormack) - 2023-10-11 13:12 +0000
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-11 19:22 +0200
Re: What does this code print ? scott@slp53.sl.home (Scott Lurndal) - 2023-10-11 17:41 +0000
Re: What does this code print ? Bo Persson <bo@bo-persson.se> - 2023-10-11 20:24 +0200
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-13 05:24 +0200
Re: What does this code print ? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-10-13 17:53 +0100
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-14 15:50 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-13 12:12 -0400
Re: What does this code print ? scott@slp53.sl.home (Scott Lurndal) - 2023-10-13 17:27 +0000
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-14 15:52 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-14 11:26 -0400
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-15 09:08 +0200
Re: What does this code print ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-10-15 12:55 -0700
Re: What does this code print ? Richard Damon <news.x.richarddamon@xoxy.net> - 2023-10-15 22:19 -0400
Re: What does this code print ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-10-18 20:58 -0700
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-11 19:21 +0200
Re: What does this code print ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-10-11 12:41 -0700
Re: What does this code print ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-10-11 12:43 -0700
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-13 05:25 +0200
Re: What does this code print ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-10-12 20:50 -0700
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-13 08:50 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-13 12:15 -0400
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-14 15:53 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-14 11:26 -0400
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-15 09:00 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-15 13:15 -0400
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-17 07:47 +0200
Re: What does this code print ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-10-17 11:34 -0700
Re: What does this code print ? Kaz Kylheku <864-117-4973@kylheku.com> - 2023-10-13 16:34 +0000
Re: What does this code print ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-10-13 13:12 -0700
Re: What does this code print ? Kaz Kylheku <864-117-4973@kylheku.com> - 2023-10-14 02:36 +0000
Re: What does this code print ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-10-13 20:44 -0700
Re: What does this code print ? Paavo Helde <eesnimi@osa.pri.ee> - 2023-10-14 11:51 +0300
Re: What does this code print ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-10-17 11:35 -0700
Re: What does this code print ? Kaz Kylheku <864-117-4973@kylheku.com> - 2023-10-17 20:06 +0000
Re: What does this code print ? Paavo Helde <eesnimi@osa.pri.ee> - 2023-10-18 11:43 +0300
Re: What does this code print ? Kaz Kylheku <864-117-4973@kylheku.com> - 2023-10-18 17:29 +0000
Re: What does this code print ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-10-18 11:31 -0700
Re: What does this code print ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-10-19 14:43 -0700
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-14 15:54 +0200
Re: What does this code print ? Kaz Kylheku <864-117-4973@kylheku.com> - 2023-10-14 18:05 +0000
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-14 14:58 -0400
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-15 08:58 +0200
Re: What does this code print ? Richard Damon <news.x.richarddamon@xoxy.net> - 2023-10-14 12:47 -0400
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-15 09:07 +0200
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-15 09:12 +0200
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-15 09:16 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-15 13:35 -0400
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-17 07:48 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-17 23:04 -0400
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-19 19:58 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-19 14:39 -0400
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-19 19:58 +0200
Re: What does this code print ? Kaz Kylheku <864-117-4973@kylheku.com> - 2023-10-19 18:06 +0000
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-19 20:11 +0200
Re: What does this code print ? Kaz Kylheku <864-117-4973@kylheku.com> - 2023-10-19 19:20 +0000
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-19 16:06 -0400
Re: What does this code print ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-10-19 14:45 -0700
Re: What does this code print ? Kaz Kylheku <864-117-4973@kylheku.com> - 2023-10-19 23:26 +0000
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-20 09:19 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-20 05:47 -0400
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-20 17:59 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-20 19:16 -0700
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-21 08:02 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-21 08:38 -0700
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-21 19:40 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-21 10:54 -0700
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-21 20:34 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-21 12:45 -0700
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-22 04:18 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-21 19:28 -0700
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-22 06:53 +0200
Re: What does this code print ? Branimir Maksimovic <branimir.maksimovic@icloud.com> - 2023-10-22 09:59 +0000
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-22 07:12 -0700
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-23 19:05 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-23 10:40 -0700
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-24 16:03 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-24 07:28 -0700
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-24 17:01 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-24 08:28 -0700
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-24 18:27 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-24 10:05 -0700
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-24 19:08 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-24 10:39 -0700
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-24 20:25 +0200
Re: What does this code print ? Kaz Kylheku <864-117-4973@kylheku.com> - 2023-10-24 19:48 +0000
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-25 10:54 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-25 08:43 -0700
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-25 17:57 +0200
Re: What does this code print ? Branimir Maksimovic <branimir.maksimovic@icloud.com> - 2023-10-24 16:40 +0000
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-24 19:07 +0200
Re: What does this code print ? scott@slp53.sl.home (Scott Lurndal) - 2023-10-24 15:25 +0000
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-24 08:34 -0700
Re: What does this code print ? Kaz Kylheku <864-117-4973@kylheku.com> - 2023-10-24 16:34 +0000
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-24 19:05 +0200
Re: What does this code print ? Kaz Kylheku <864-117-4973@kylheku.com> - 2023-10-20 14:50 +0000
Re: What does this code print ? Bo Persson <bo@bo-persson.se> - 2023-10-20 17:34 +0200
Re: What does this code print ? Kaz Kylheku <864-117-4973@kylheku.com> - 2023-10-20 15:59 +0000
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-20 18:00 +0200
Re: What does this code print ? Kaz Kylheku <864-117-4973@kylheku.com> - 2023-10-20 16:06 +0000
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-20 18:40 +0200
Re: What does this code print ? gazelle@shell.xmission.com (Kenny McCormack) - 2023-10-20 20:07 +0000
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-21 08:04 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-15 13:35 -0400
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-17 07:50 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-17 23:08 -0400
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-19 20:02 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-19 14:43 -0400
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-19 20:02 +0200
Re: What does this code print ? scott@slp53.sl.home (Scott Lurndal) - 2023-10-15 14:36 +0000
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-15 18:15 +0200
Re: What does this code print ? Richard Damon <news.x.richarddamon@xoxy.net> - 2023-10-15 22:23 -0400
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-17 07:51 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-17 23:08 -0400
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-15 13:25 -0400
Re: What does this code print ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-10-14 11:33 -0700
Re: What does this code print ? Paavo Helde <eesnimi@osa.pri.ee> - 2023-10-14 21:54 +0300
Re: What does this code print ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-10-14 11:56 -0700
Re: What does this code print ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-10-24 15:53 -0700
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-25 15:07 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-25 08:43 -0700
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-25 18:01 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-25 09:21 -0700
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-25 18:24 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-25 11:23 -0700
Re: What does this code print ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-10-25 15:02 -0700
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-26 07:13 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-25 23:09 -0700
Re: What does this code print ? James Kuyper <jameskuyper@alumni.caltech.edu> - 2023-10-25 23:55 -0400
Re: What does this code print ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-10-25 15:01 -0700
Re: What does this code print ? Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-26 07:15 +0200
Re: What does this code print ? Richard Damon <richard@damon-family.org> - 2023-10-25 23:12 -0700
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