Re: Hello World in Russian

From	Ben Bacarisse <ben.usenet@bsb.me.uk>
Newsgroups	comp.lang.c++
Subject	Re: Hello World in Russian
Date	2022-01-30 14:45 +0000
Organization	A noiseless patient Spider
Message-ID	<87o83te0yh.fsf@bsb.me.uk> (permalink)
References	(1 earlier) <st362k$ham$1@dont-email.me> <st3n3o$cn4$1@dont-email.me> <st5hll$ppo$1@dont-email.me> <87tudle826.fsf@bsb.me.uk> <st628v$als$1@dont-email.me>

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"Alf P. Steinbach" <alf.p.steinbach@gmail.com> writes:

> On 30 Jan 2022 13:12, Ben Bacarisse wrote:
>> "Alf P. Steinbach" <alf.p.steinbach@gmail.com> writes:
>> 
>>> My opinion is that C (and hence also C++) text mode is an abomination
>>> that should never have been introduced, and that in addition, given
>>> that it was introduced, it's designed in a stupid way with the data
>>> conversion applied underneath the buffer level so that one can't get a
>>> clear view of the raw data.
>>>
>>> As an example, the design means that Unix `cat` can't be faithfully
>>> implemented in Windows using only standard C or C++, which IMO is
>>> extreme.
>> I assume you are talking about the cases where cat defaults to reading
>> stdin and/or writing stdout, If so, it could be argued that it's not the
>> fault of the C and C++ standards, but more the fault of the
>> implementations not providing a useful freopen function.
>> But then maybe freopen simply can't be implemented in Windows for some
>> mysterious reason I don't get.
>
> I guess you're talking about using standard C++ code with some system
> specific knowledge such as how to specify the standard input stream as
> a file name.

No.  I was just talking about using freopen.

> To reopen the standard input so that it connects to the original
> source, which might a pipe or a file or the console, one needs to (1)
> identify that source, and (2) open that source, possibly after closing
> the original connection.

I don't see why you need to do that.  freopen (were it fully supported)
would allow a program to change the mode of stdin and stdout without
knowing anything about the sources.

<snip code>
> Portable code
> !freopen(stdin) failed
>
> So.

Not sure what the "so" is about.  You appeared to be blaming the C and
C++ standard for not allowing cat to be written on Windows.  I blame the
Windows standard library for not supporting freopen.

-- 
Ben.

Thread

Hello World in Russian Joseph Hesse <joeh@gmail.com> - 2022-01-29 05:51 +0200
  Re: Hello World in Russian James Kuyper <jameskuyper@alumni.caltech.edu> - 2022-01-28 23:27 -0500
    Re: Hello World in Russian Muttley@dastardlyhq.com - 2022-01-29 10:21 +0000
  Re: Hello World in Russian Andrey Tarasevich <andreytarasevich@hotmail.com> - 2022-01-28 22:42 -0800
    Re: Hello World in Russian David Brown <david.brown@hesbynett.no> - 2022-01-29 13:01 +0100
      Re: Hello World in Russian "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2022-01-29 14:12 +0100
        Re: Hello World in Russian David Brown <david.brown@hesbynett.no> - 2022-01-29 17:34 +0100
      Re: Hello World in Russian James Kuyper <jameskuyper@alumni.caltech.edu> - 2022-01-30 14:17 -0500
        Re: Hello World in Russian Andrey Tarasevich <andreytarasevich@hotmail.com> - 2022-01-30 20:17 -0800
  Re: Hello World in Russian "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2022-01-29 11:48 +0100
    Re: Hello World in Russian Paavo Helde <eesnimi@osa.pri.ee> - 2022-01-29 17:39 +0200
      Re: Hello World in Russian "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2022-01-30 09:18 +0100
        Re: Hello World in Russian Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-01-30 12:12 +0000
          Re: Hello World in Russian "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2022-01-30 14:02 +0100
            Re: Hello World in Russian Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-01-30 14:45 +0000
              Re: Hello World in Russian "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2022-01-30 21:53 +0100
                Re: Hello World in Russian Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-01-30 21:00 +0000
            Re: Hello World in Russian James Kuyper <jameskuyper@alumni.caltech.edu> - 2022-01-30 14:02 -0500
          Re: Hello World in Russian Muttley@dastardlyhq.com - 2022-01-31 10:23 +0000
            Re: Hello World in Russian scott@slp53.sl.home (Scott Lurndal) - 2022-01-31 16:11 +0000
              Re: Hello World in Russian Muttley@dastardlyhq.com - 2022-01-31 16:36 +0000
              Re: Hello World in Russian Paavo Helde <eesnimi@osa.pri.ee> - 2022-01-31 20:20 +0200
            Re: Hello World in Russian Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-01-31 16:12 +0000
              Re: Hello World in Russian Muttley@dastardlyhq.com - 2022-01-31 16:39 +0000
                Re: Hello World in Russian Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-01-31 23:47 +0000
        Re: Hello World in Russian Manfred <noname@add.invalid> - 2022-01-31 16:45 +0100
        Re: Hello World in Russian Andrey Tarasevich <andreytarasevich@hotmail.com> - 2022-01-31 10:10 -0800
          Re: Hello World in Russian "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2022-01-31 19:25 +0100
      Re: Hello World in Russian Marcel Mueller <news.5.maazl@spamgourmet.org> - 2022-01-30 12:09 +0100
        Re: Hello World in Russian Paavo Helde <eesnimi@osa.pri.ee> - 2022-01-30 14:26 +0200
          Re: Hello World in Russian Richard Damon <Richard@Damon-Family.org> - 2022-01-30 08:59 -0500
            Re: Hello World in Russian Paavo Helde <eesnimi@osa.pri.ee> - 2022-01-30 18:21 +0200
              Re: Hello World in Russian Richard Damon <Richard@Damon-Family.org> - 2022-01-30 12:56 -0500
                Re: Hello World in Russian Vir Campestris <vir.campestris@invalid.invalid> - 2022-02-07 21:05 +0000

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