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Re: What does this code print ?

From Richard Damon <richard@damon-family.org>
Newsgroups comp.lang.c++
Subject Re: What does this code print ?
Date 2023-10-25 09:21 -0700
Organization i2pn2 (i2pn.org)
Message-ID <uhbfam$2mvvu$4@i2pn2.org> (permalink)
References (5 earlier) <ugeo5l$gqp$1@dont-email.me> <uh9hti$84mf$1@dont-email.me> <uhb3ud$p19b$1@dont-email.me> <uhbd3m$2mvvu$3@i2pn2.org> <uhbe4o$rqvq$2@dont-email.me>

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On 10/25/23 9:01 AM, Bonita Montero wrote:
> Am 25.10.2023 um 17:43 schrieb Richard Damon:
> 
>> After all, for a "generic" lambda, each variation is really a 
>> different function (just like a template function), but each instance 
>> of a GIVEN instance of the "generic" lambda, just like the non-generic 
>> lambda, or even an ordinary function, when inlined MUST share static 
>> or thread_local variables.
> 
> I would also have thought it acceptable if each "instance" of
> the lambda had its own static and thread-local variables for
> each calling convention. In practice, it would be very atypical
> if you actually instantiate the lambda with several calling
> conventions.

The key point is that for functions that are inlined, each inlined 
"instance" of the function doesn't get new shared static/thread-local 
variables. This is REQUIRED as inlining isn't allowed to change the 
visible behavior of the function, but is just an optimization.

Your multiple "instances" are all logically part of the same function. 
Your thought process that you have two different versions of the lambda 
with different calling conventions is just incorrect.

You have one version of the lambda, with the cdecl calling convention 
(since no convention was specified) used in both "instances". Each 
instance is actually an invoker/trampoline function with the specified 
calling convention, using the one defined lambda function, which happens 
to get inlined. So, perhaps at first glance it looks like there are two 
different version of the lambda function, but by the definitions of the 
Standard, there is one version, that has been inlined in two places 
within two different calling convention adaptor functions.

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Thread

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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