Re: Book or tutorial on standard C threads

From	Bart <bc@freeuk.com>
Newsgroups	comp.lang.c
Subject	Re: Book or tutorial on standard C threads
Date	2021-12-16 18:00 +0000
Organization	A noiseless patient Spider
Message-ID	<spfurq$3ll$1@dont-email.me> (permalink)
References	(7 earlier) <spd8gl$dq4$1@dont-email.me> <spdfc4$1l6$1@dont-email.me> <spenqd$t0c$1@dont-email.me> <spfhn3$370$1@dont-email.me> <spfp7o$pv7$1@dont-email.me>

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On 16/12/2021 16:24, David Brown wrote:
> On 16/12/2021 15:16, Bart wrote:
>> On 16/12/2021 06:54, Bonita Montero wrote:
>>> Here's another good example of using long lambdas:
>>>
>>>           auto gatherTLBs = [&]( bool update ) -> size_t
>>>           {
>>>               size_t nTLBs = 0;
>>>               auto push = [&]( bool l2, bool code, bool _4k, bool
>>> _2M4M, bool _1G, unsigned n, unsigned ways, bool update )
>>>               {
> 
> <snip>
> 
>>
>> So, it looks like your emphasis is different aspects: those elusive
>> lambdas (which doesn't help readability at all, unless it would be even
>> worse without them), rather than doing something about basic readability.
> 
> The lambdas here are nothing more nor less than function-local
> functions.  Neither C nor C++ has support for local functions (unlike
> Pascal, Ada, and many other languages - including gcc extended C).
> Lambdas can certainly be convenient for that, and are safer, easier and
> better scoped than using macros.

So the lambda here is the local 'function' that includes that '[&]` 
(according to BB)?

That's not what I'd think of as a 'lambda', which would be a function 
(parameter-spec and body) embedded in an expression - code to be 
evaluated later not as encountered.

I'm surprised that even gnu C++ doesn't have local functions (or does it?).

In that case a more suitable and more useful feature would have been 
local functions.

(Which I used to implemented, but I kept them simple to avoid problems 
with accessing or capturing surrounding variables: accesses to 
stack-allocated variables of the enclosing function(s) were banned; but 
everything else was accessible.

To implement BM's example, 'update' and 'nTLBs' would need to be static, 
or copied to a static variable.

I no longer have them because they were never used, and they caused 
problems when an 'end' was left out, as that was only detected at the 
end of the file rather than at the start of the next function, which was 
interpreted as nested.)

Thread

Book or tutorial on standard C threads Mehdi Amini <atorrses@gmail.com> - 2021-12-11 10:06 +0330
  Re: Book or tutorial on standard C threads Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-11 08:29 +0100
    Re: Book or tutorial on standard C threads gazelle@shell.xmission.com (Kenny McCormack) - 2021-12-13 08:12 +0000
      Re: Book or tutorial on standard C threads Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-14 17:41 +0100
  Re: Book or tutorial on standard C threads Thiago Adams <thiago.adams@gmail.com> - 2021-12-13 09:16 -0800
    Re: Book or tutorial on standard C threads Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-14 17:47 +0100
      Re: Book or tutorial on standard C threads scott@slp53.sl.home (Scott Lurndal) - 2021-12-14 17:13 +0000
        Re: Book or tutorial on standard C threads Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-14 18:43 +0100
          Re: Book or tutorial on standard C threads Guillaume <message@bottle.org> - 2021-12-14 19:23 +0100
            Re: Book or tutorial on standard C threads Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-14 20:16 +0100
          Re: Book or tutorial on standard C threads Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2021-12-15 04:02 -0800
            Re: Book or tutorial on standard C threads Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-15 17:53 +0100
              Re: Book or tutorial on standard C threads Bart <bc@freeuk.com> - 2021-12-15 17:26 +0000
                Re: Book or tutorial on standard C threads Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-15 18:30 +0100
                Re: Book or tutorial on standard C threads scott@slp53.sl.home (Scott Lurndal) - 2021-12-15 17:49 +0000
                Re: Book or tutorial on standard C threads Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-15 19:19 +0100
                Re: Book or tutorial on standard C threads "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-12-15 17:44 -0800
                Re: Book or tutorial on standard C threads Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-15 20:23 +0100
                Re: Book or tutorial on standard C threads Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-16 07:54 +0100
                Re: Book or tutorial on standard C threads Bart <bc@freeuk.com> - 2021-12-16 14:16 +0000
                Re: Book or tutorial on standard C threads Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-16 15:49 +0100
                Re: Book or tutorial on standard C threads Bart <bc@freeuk.com> - 2021-12-16 15:57 +0000
                Re: Book or tutorial on standard C threads Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-12-16 17:03 +0000
                Re: Book or tutorial on standard C threads Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-16 20:08 +0100
                Re: Book or tutorial on standard C threads Bart <bc@freeuk.com> - 2021-12-16 20:48 +0000
                Re: Book or tutorial on standard C threads Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-17 07:19 +0100
                Re: Book or tutorial on standard C threads David Brown <david.brown@hesbynett.no> - 2021-12-16 17:24 +0100
                Re: Book or tutorial on standard C threads Bart <bc@freeuk.com> - 2021-12-16 18:00 +0000
                Re: Book or tutorial on standard C threads Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-16 20:06 +0100
                Re: Book or tutorial on standard C threads David Brown <david.brown@hesbynett.no> - 2021-12-16 20:14 +0100
                Re: Book or tutorial on standard C threads Öö Tiib <ootiib@hot.ee> - 2021-12-17 09:30 -0800
                Re: Book or tutorial on standard C threads Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-17 19:06 +0100
                Re: Book or tutorial on standard C threads Öö Tiib <ootiib@hot.ee> - 2021-12-18 03:07 -0800
                Re: Book or tutorial on standard C threads David Brown <david.brown@hesbynett.no> - 2021-12-18 18:33 +0100
                Re: Book or tutorial on standard C threads Bart <bc@freeuk.com> - 2021-12-17 18:19 +0000
                Re: Book or tutorial on standard C threads David Brown <david.brown@hesbynett.no> - 2021-12-18 18:45 +0100
                Re: Book or tutorial on standard C threads Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-12-16 21:45 +0000
                Re: Book or tutorial on standard C threads Bart <bc@freeuk.com> - 2021-12-16 23:02 +0000
                Re: Book or tutorial on standard C threads Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-18 13:45 +0100
                Re: Book or tutorial on standard C threads Öö Tiib <ootiib@hot.ee> - 2021-12-18 06:02 -0800
                Re: Book or tutorial on standard C threads Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-18 15:31 +0100
                Re: Book or tutorial on standard C threads Öö Tiib <ootiib@hot.ee> - 2021-12-18 07:12 -0800
                Re: Book or tutorial on standard C threads Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-18 16:45 +0100
                Re: Book or tutorial on standard C threads Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-12-18 23:38 +0000
                Re: Book or tutorial on standard C threads Öö Tiib <ootiib@hot.ee> - 2021-12-19 10:40 -0800
                Re: Book or tutorial on standard C threads Bart <bc@freeuk.com> - 2021-12-19 19:07 +0000
                Re: Book or tutorial on standard C threads Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-19 20:17 +0100
                Re: Book or tutorial on standard C threads Öö Tiib <ootiib@hot.ee> - 2021-12-19 12:41 -0800
                Re: Book or tutorial on standard C threads Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2021-12-20 03:21 -0800
                Re: Book or tutorial on standard C threads Öö Tiib <ootiib@hot.ee> - 2021-12-20 09:39 -0800
                Re: Book or tutorial on standard C threads scott@slp53.sl.home (Scott Lurndal) - 2021-12-16 18:32 +0000
                Re: Book or tutorial on standard C threads David Brown <david.brown@hesbynett.no> - 2021-12-16 20:27 +0100
                Re: Book or tutorial on standard C threads Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-16 20:33 +0100
                Re: Book or tutorial on standard C threads Bart <bc@freeuk.com> - 2021-12-17 10:59 +0000
                Re: Book or tutorial on standard C threads Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-17 13:08 +0100
                Re: Book or tutorial on standard C threads scott@slp53.sl.home (Scott Lurndal) - 2021-12-17 16:25 +0000
                Re: Book or tutorial on standard C threads Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-17 17:38 +0100
  Re: Book or tutorial on standard C threads "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-12-16 16:03 -0800
    Re: Book or tutorial on standard C threads Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-12-17 00:12 +0000
      Re: Book or tutorial on standard C threads "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-12-16 17:05 -0800
        Re: Book or tutorial on standard C threads "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-12-16 17:07 -0800
  Re: Book or tutorial on standard C threads "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-12-19 17:23 -0800
    Re: Book or tutorial on standard C threads Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-20 07:35 +0100

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