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Re: How to get standard paths?!?

Path csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail
From Bo Persson <bo@bo-persson.se>
Newsgroups comp.lang.c++
Subject Re: How to get standard paths?!?
Date Sat, 17 Aug 2019 21:21:46 +0200
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On 2019-08-17 at 20:22, Tim Rentsch wrote:
> Bonita Montero <Bonita.Montero@gmail.com> writes:
> 
>>>>> Be advised that in Windows wide strings are UTF-16 encoded.
>>>>
>>>> And I think that it would be the best to use std::u16string
>>>> because wchar_t is not absolutely guaranteed to be 16 bit
>>>> wide.
>>>
>>> It is guaranteed /not/ to be 16-bit on most systems.
>>
>> You can be pretty sure that by far most implementations specify
>> whcar_t as 16 bit since it makes no sense to implement it differently.
>> But it's easier to conform to any hypothetical implementation by using
>> char16_t.
> 
> (and in another posting quotes the C++ standard)
> 
>> "Type wchar_t is a distinct type whose values can represent distinct
>> codes for all members of the largest extended character set specified
>> among the supported locales (22.3.1)."
> 
> Like you say, the C and C++ standards require wchar_t to be large
> enough so one wchar_t object can hold distinct values for every
> character in the largest supported character set.
> 
> Most widely used operating systems today (eg, Microsoft Windows,
> Linux) support character sets with (at least) hundreds of
> thousands of characters.
> 
> Can you explain how hundreds of thousands distinct values can be
> represented in a single 16-bit wide wchar_t object?
> 

No, they would naturally not fit.

But there is a loop-hole here, as the language standard says "the 
supported locales" and not "every existing locale".

So if you only support the locales where 16 bits is enough, you haven't 
broken any rules. And you cannot help is some people use parts of 
"unsupported" locales as well...

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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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