Re: initializer list type deduction rules

From	Muttley@dastardlyhq.com
Newsgroups	comp.lang.c++
Subject	Re: initializer list type deduction rules
Date	2022-08-10 07:55 +0000
Organization	Aioe.org NNTP Server
Message-ID	<tcvo8u$kl5$1@gioia.aioe.org> (permalink)
References	<tct3rm$1l9a$1@gioia.aioe.org> <5f204a4e-c9cc-42cf-b193-7e27eccfe003n@googlegroups.com> <tcu0mi$aki$1@gioia.aioe.org> <19e1392a-2188-4d49-98bf-4bbf645d4a02n@googlegroups.com>

Show all headers | View raw

On Wed, 10 Aug 2022 00:40:54 -0700 (PDT)
=?UTF-8?B?w5bDtiBUaWli?= <ootiib@hot.ee> wrote:
>On Tuesday, 9 August 2022 at 19:06:57 UTC+3, Mut...@dastardlyhq.com wrote:
>> On Tue, 9 Aug 2022 09:00:06 -0700 (PDT) 
>> >using Works = std::initializer_list<std::pair<unsigned, unsigned>>;
>> Or less confusingly 
>> 
>> typedef std::initializer_list<std::pair<unsigned, unsigned>> Works; 
>> 
>> "typedef" has one job to do. "using" was already overloaded and the point 
>> of overloading it again simply to duplicate typedef is frankly a mystery to
>me 
>> and it just makes C++ even more of a confusing mess.
>
>I have no problems reading neither "using" nor "typedef". As I rarely work on
>totally new code-base I try to write what code-base already uses for 
>consistency.  
>
>Confusion can arise when both forms of type alias declaration are used
>side-by-side. That generates questions why both are used, what kind of

The more pertinent question is why the C++ committee felt the need to 
duplicate the functionality of typedef.

>Then proposed will be that we put clang-tidy into toolchain. It will
>automatically replace all typedefs with using before building and so
>one commit later there will be no typedefs in any code that team
>maintains manually. It is attractive to people bored of that  
>bike-shedding. Tools that automatically replace using with typedef
>are missing so there are no way to resolve it sanely in other direction.

On a large C++ unix project that only uses typedefs for defining types:

grep typedef $(find -E . -regex ".*\.(h|hpp|cc|cpp)")

will list all your definitions. Putting "using" in there will probably bring 
back a whole load of crap you don't want.

Thread

initializer list type deduction rules Juha Nieminen <nospam@thanks.invalid> - 2022-08-09 07:54 +0000
  Re: initializer list type deduction rules Bo Persson <bo@bo-persson.se> - 2022-08-09 10:43 +0200
  Re: initializer list type deduction rules Öö Tiib <ootiib@hot.ee> - 2022-08-09 09:00 -0700
    Re: initializer list type deduction rules Muttley@dastardlyhq.com - 2022-08-09 16:06 +0000
      Re: initializer list type deduction rules Juha Nieminen <nospam@thanks.invalid> - 2022-08-10 02:32 +0000
        Re: initializer list type deduction rules Paavo Helde <eesnimi@osa.pri.ee> - 2022-08-10 09:11 +0300
          Re: initializer list type deduction rules Juha Nieminen <nospam@thanks.invalid> - 2022-08-10 06:57 +0000
        Re: initializer list type deduction rules Muttley@dastardlyhq.com - 2022-08-10 07:31 +0000
      Re: initializer list type deduction rules Öö Tiib <ootiib@hot.ee> - 2022-08-10 00:40 -0700
        Re: initializer list type deduction rules Muttley@dastardlyhq.com - 2022-08-10 07:55 +0000
          Re: initializer list type deduction rules Öö Tiib <ootiib@hot.ee> - 2022-08-10 01:13 -0700
            Re: initializer list type deduction rules Muttley@dastardlyhq.com - 2022-08-10 08:21 +0000
              Re: initializer list type deduction rules Öö Tiib <ootiib@hot.ee> - 2022-08-10 11:13 -0700
                Re: initializer list type deduction rules Muttley@dastardlyhq.com - 2022-08-12 08:26 +0000
                Re: initializer list type deduction rules Öö Tiib <ootiib@hot.ee> - 2022-08-12 03:38 -0700
                Re: initializer list type deduction rules Muttley@dastardlyhq.com - 2022-08-12 10:48 +0000
                Re: initializer list type deduction rules Öö Tiib <ootiib@hot.ee> - 2022-08-12 04:54 -0700
                Re: initializer list type deduction rules Muttley@dastardlyhq.com - 2022-08-12 14:34 +0000
                Re: initializer list type deduction rules Öö Tiib <ootiib@hot.ee> - 2022-08-12 08:34 -0700
                Re: initializer list type deduction rules Muttley@dastardlyhq.com - 2022-08-12 15:57 +0000
                Re: initializer list type deduction rules Öö Tiib <ootiib@hot.ee> - 2022-08-12 09:16 -0700
                Re: initializer list type deduction rules Muttley@dastardlyhq.com - 2022-08-13 09:35 +0000
                Re: initializer list type deduction rules Öö Tiib <ootiib@hot.ee> - 2022-08-13 09:44 -0700
                Re: initializer list type deduction rules Muttley@dastardlyhq.com - 2022-08-14 11:12 +0000
                Re: initializer list type deduction rules scott@slp53.sl.home (Scott Lurndal) - 2022-08-12 14:58 +0000
                Re: initializer list type deduction rules Öö Tiib <ootiib@hot.ee> - 2022-08-12 08:59 -0700
                Re: initializer list type deduction rules Muttley@dastardlyhq.com - 2022-08-12 16:11 +0000
                Re: initializer list type deduction rules scott@slp53.sl.home (Scott Lurndal) - 2022-08-12 16:44 +0000
                Re: initializer list type deduction rules Öö Tiib <ootiib@hot.ee> - 2022-08-12 12:08 -0700
                Re: initializer list type deduction rules scott@slp53.sl.home (Scott Lurndal) - 2022-08-12 19:58 +0000
                Re: initializer list type deduction rules Öö Tiib <ootiib@hot.ee> - 2022-08-12 16:42 -0700
                Re: initializer list type deduction rules David Brown <david.brown@hesbynett.no> - 2022-08-13 18:14 +0200
                Re: initializer list type deduction rules Muttley@dastardlyhq.com - 2022-08-14 11:06 +0000
                Re: initializer list type deduction rules David Brown <david.brown@hesbynett.no> - 2022-08-15 11:34 +0200
                Re: initializer list type deduction rules Muttley@dastardlyhq.com - 2022-08-15 19:03 +0000
                Re: initializer list type deduction rules David Brown <david.brown@hesbynett.no> - 2022-08-15 21:23 +0200
                Re: initializer list type deduction rules red floyd <no.spam.here@its.invalid> - 2022-08-15 13:51 -0700
                Re: initializer list type deduction rules Muttley@dastardlyhq.com - 2022-08-16 19:16 +0000
                Re: initializer list type deduction rules Paavo Helde <eesnimi@osa.pri.ee> - 2022-08-21 22:23 +0300
                Re: initializer list type deduction rules David Brown <david.brown@hesbynett.no> - 2022-08-22 08:08 +0200
                Re: initializer list type deduction rules Paavo Helde <eesnimi@osa.pri.ee> - 2022-08-22 11:37 +0300
                Re: initializer list type deduction rules Muttley@dastardlyhq.com - 2022-08-22 10:23 +0000
          Re: initializer list type deduction rules Juha Nieminen <nospam@thanks.invalid> - 2022-08-11 06:24 +0000
            Re: initializer list type deduction rules Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-08-11 16:37 +0100
              Re: initializer list type deduction rules Juha Nieminen <nospam@thanks.invalid> - 2022-08-11 20:12 +0000
                Re: initializer list type deduction rules Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-08-12 00:09 +0100
                Re: initializer list type deduction rules Juha Nieminen <nospam@thanks.invalid> - 2022-08-12 11:51 +0000
            Re: initializer list type deduction rules Muttley@dastardlyhq.com - 2022-08-12 08:29 +0000
              Re: initializer list type deduction rules Juha Nieminen <nospam@thanks.invalid> - 2022-08-12 12:08 +0000
                Re: initializer list type deduction rules Muttley@dastardlyhq.com - 2022-08-12 14:37 +0000
                Re: initializer list type deduction rules scott@slp53.sl.home (Scott Lurndal) - 2022-08-12 15:01 +0000
                Re: initializer list type deduction rules Juha Nieminen <nospam@thanks.invalid> - 2022-08-15 06:04 +0000
  Re: initializer list type deduction rules Andrey Tarasevich <andreytarasevich@hotmail.com> - 2022-08-09 16:08 -0700
    Re: initializer list type deduction rules Juha Nieminen <nospam@thanks.invalid> - 2022-08-10 02:34 +0000

csiph-web