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Groups > comp.lang.c++ > #67719

Re: How to get standard paths?!?

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From Keith Thompson <kst-u@mib.org>
Newsgroups comp.lang.c++
Subject Re: How to get standard paths?!?
Date Sat, 17 Aug 2019 16:33:58 -0700
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David Brown <david.brown@hesbynett.no> writes:
> On 17/08/2019 18:26, Bonita Montero wrote:
>>> Exactly, yes. 16-bit wchar_t can't do that on a system that
>>> supports Unicode (regardless of the encoding).
>> 
>> There will be no more Unicode codepoints populated than could be
>> adressed by UTF-16. At least until we gonna support alien languages.
>
> Does your ignorance know no bounds?
>
> Aren't you even capable of the simplest of web searches or references 
> before talking rubbish in public?

I think you have incorrectly assumed that Bonita is asserting that there
are no more than 65536 Unicode codepoints.

UTF-16 can represent all Unicode codepoints.  It cannot represent each
Unicode codepoint in 16 bits; some of them require two 16-bit values.

I presume Bonita meant that UTF-16 can represent all of Unicode (which
is true).  But a 16-bit wchar_t cannot, because the standard requires
wchar_t to be "able to represent all members of the execution
wide-character set" (that's the point Bonita missed or ignored).

To use wchar_t to represent all Unicode code points, you either have to
make wchar_t at least 21 bits (more likely 32 bits) *or* you have to use
it in a way that doesn't satisfy the requirements of the standard, such
as using UTF-16 to encode some characters in more than one wchar_t.

[...]

-- 
Keith Thompson (The_Other_Keith) kst-u@mib.org  <http://www.ghoti.net/~kst>
Will write code for food.
void Void(void) { Void(); } /* The recursive call of the void */

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Thread

How to get standard paths?!? Szyk Cech <szykcech@spoko.pl> - 2019-08-17 13:58 +0200
  Re: How to get standard paths?!? "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2019-08-17 14:02 +0200
    Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-17 14:05 +0200
      Re: How to get standard paths?!? David Brown <david.brown@hesbynett.no> - 2019-08-17 15:11 +0200
        Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-17 15:59 +0200
          Re: How to get standard paths?!? David Brown <david.brown@hesbynett.no> - 2019-08-17 16:20 +0200
            Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-17 16:28 +0200
              Re: How to get standard paths?!? Ralf Goertz <me@myprovider.invalid> - 2019-08-17 16:37 +0200
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-17 16:54 +0200
                Re: How to get standard paths?!? Paavo Helde <myfirstname@osa.pri.ee> - 2019-08-17 18:37 +0300
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-17 17:54 +0200
                Re: How to get standard paths?!? Paavo Helde <myfirstname@osa.pri.ee> - 2019-08-17 19:55 +0300
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-17 19:15 +0200
                Re: How to get standard paths?!? Paavo Helde <myfirstname@osa.pri.ee> - 2019-08-17 20:39 +0300
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-17 19:44 +0200
                Re: How to get standard paths?!? David Brown <david.brown@hesbynett.no> - 2019-08-17 20:10 +0200
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-18 08:58 +0200
                Re: How to get standard paths?!? Bart <bc@freeuk.com> - 2019-08-18 10:16 +0100
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-18 11:27 +0200
                Re: How to get standard paths?!? Bo Persson <bo@bo-persson.se> - 2019-08-17 21:07 +0200
                Re: How to get standard paths?!? David Brown <david.brown@hesbynett.no> - 2019-08-17 21:41 +0200
                Re: How to get standard paths?!? David Brown <david.brown@hesbynett.no> - 2019-08-17 17:40 +0200
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-17 17:52 +0200
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-17 18:00 +0200
                Re: How to get standard paths?!? David Brown <david.brown@hesbynett.no> - 2019-08-17 18:01 +0200
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-17 18:26 +0200
                Re: How to get standard paths?!? David Brown <david.brown@hesbynett.no> - 2019-08-17 20:20 +0200
                Re: How to get standard paths?!? Keith Thompson <kst-u@mib.org> - 2019-08-17 16:33 -0700
                Re: How to get standard paths?!? David Brown <david.brown@hesbynett.no> - 2019-08-18 11:34 +0200
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-18 08:48 +0200
                Re: How to get standard paths?!? David Brown <david.brown@hesbynett.no> - 2019-08-18 11:34 +0200
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-18 12:57 +0200
                Re: How to get standard paths?!? Bart <bc@freeuk.com> - 2019-08-18 13:07 +0100
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-18 15:49 +0200
                Re: How to get standard paths?!? Bo Persson <bo@bo-persson.se> - 2019-08-18 20:33 +0200
                Re: How to get standard paths?!? Bart <bc@freeuk.com> - 2019-08-18 20:51 +0100
                Re: How to get standard paths?!? Bo Persson <bo@bo-persson.se> - 2019-08-19 00:04 +0200
                Re: How to get standard paths?!? Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-08-25 05:35 -0700
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-25 15:02 +0200
                Re: How to get standard paths?!? Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-08-25 06:38 -0700
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-25 15:46 +0200
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-25 15:54 +0200
                Re: How to get standard paths?!? David Brown <david.brown@hesbynett.no> - 2019-08-19 08:52 +0200
                Re: How to get standard paths?!? "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2019-08-19 09:32 +0200
                Re: How to get standard paths?!? Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-08-22 12:37 -0700
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-19 10:26 +0200
                Re: How to get standard paths?!? David Brown <david.brown@hesbynett.no> - 2019-08-17 18:00 +0200
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-17 18:06 +0200
                Re: How to get standard paths?!? David Brown <david.brown@hesbynett.no> - 2019-08-17 20:24 +0200
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-18 08:49 +0200
                Re: How to get standard paths?!? David Brown <david.brown@hesbynett.no> - 2019-08-18 11:46 +0200
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-18 12:59 +0200
                Re: How to get standard paths?!? scott@slp53.sl.home (Scott Lurndal) - 2019-08-18 15:40 +0000
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-18 17:44 +0200
                Re: How to get standard paths?!? scott@slp53.sl.home (Scott Lurndal) - 2019-08-18 15:38 +0000
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-18 17:46 +0200
              Re: How to get standard paths?!? David Brown <david.brown@hesbynett.no> - 2019-08-17 17:56 +0200
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-17 18:05 +0200
                Re: How to get standard paths?!? Hergen Lehmann <hlehmann.expires.5-11@snafu.de> - 2019-08-17 19:47 +0200
                Re: How to get standard paths?!? David Brown <david.brown@hesbynett.no> - 2019-08-17 20:46 +0200
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-18 08:54 +0200
                Re: How to get standard paths?!? David Brown <david.brown@hesbynett.no> - 2019-08-18 12:07 +0200
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-18 13:05 +0200
                Re: How to get standard paths?!? David Brown <david.brown@hesbynett.no> - 2019-08-18 14:48 +0200
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-18 15:51 +0200
                Re: How to get standard paths?!? David Brown <david.brown@hesbynett.no> - 2019-08-18 16:43 +0200
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-18 17:02 +0200
                Re: How to get standard paths?!? David Brown <david.brown@hesbynett.no> - 2019-08-17 20:41 +0200
                Re: How to get standard paths?!? Keith Thompson <kst-u@mib.org> - 2019-08-17 16:46 -0700
                Re: How to get standard paths?!? David Brown <david.brown@hesbynett.no> - 2019-08-18 12:22 +0200
                Re: How to get standard paths?!? Robert Wessel <robertwessel2@yahoo.com> - 2019-08-17 22:57 -0500
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-18 08:57 +0200
                Re: How to get standard paths?!? David Brown <david.brown@hesbynett.no> - 2019-08-18 12:24 +0200
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-18 13:07 +0200
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-18 13:13 +0200
          Re: How to get standard paths?!? Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-08-17 11:22 -0700
            Re: How to get standard paths?!? Bo Persson <bo@bo-persson.se> - 2019-08-17 21:21 +0200
              Re: How to get standard paths?!? Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-08-17 22:25 -0700
              Re: How to get standard paths?!? Robert Wessel <robertwessel2@yahoo.com> - 2019-08-19 01:19 -0500
                Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-19 08:25 +0200
  Re: How to get standard paths?!? Bonita Montero <Bonita.Montero@gmail.com> - 2019-08-17 14:02 +0200
  Re: How to get standard paths?!? David Brown <david.brown@hesbynett.no> - 2019-08-17 15:13 +0200
  Re: How to get standard paths?!? Sam <sam@email-scan.com> - 2019-08-17 09:21 -0400
  Re: How to get standard paths?!? Jorgen Grahn <grahn+nntp@snipabacken.se> - 2019-08-19 20:57 +0000

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