Re: Character Array vs String

From	Keith Thompson <kst-u@mib.org>
Newsgroups	comp.lang.c
Subject	Re: Character Array vs String
Date	2011-11-10 03:26 -0800
Organization	None to speak of
Message-ID	<lnty6c8bhr.fsf@nuthaus.mib.org> (permalink)
References	(8 earlier) <51b5adde-33e6-4336-a696-75116e6ee987@d17g2000yql.googlegroups.com> <lnipmt9chq.fsf@nuthaus.mib.org> <j9f9is$7a8$1@dont-email.me> <0.9049b181463c1e9cc0f2.20111110032150GMT.87liro1x2p.fsf@bsb.me.uk> <j9gaua$3u6$1@dont-email.me>

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"BartC" <bc@freeuk.com> writes:
> "Ben Bacarisse" <ben.usenet@bsb.me.uk> wrote in message 
> news:0.9049b181463c1e9cc0f2.20111110032150GMT.87liro1x2p.fsf@bsb.me.uk...
[...]
>> Some needed *more* time.  A logical newline was sometimes translated
>> into \n\r\0\0\0\0\0\0\0\0\0.  If I'm not mistaken, some systems had to
>> send more nulls after long lines than after short ones.
>
> Didn't a teletype use any handshaking to indicate when it was ready for more 
> data?

Not necessarily.

> Each extra \0 took another 1/10 second to send (on an ASR33 anyway), 
> accompanied by a lot of extra clatter. I think it would be noticed if it 
> happened on every line!

Even today, the man page for the "stty" command has the following:

       * [-]ofdel
              use delete characters for fill instead of null characters

       * [-]ofill
              use fill (padding) characters instead of timing for delays

I seem to recall using systems where "stty" has a setting to control how
many null characters are transmitted after a carriage return, to allow
time for the cursor to reach the beginning of the line.

>> What the hardware needs is now, thankfully, kept entirely separate
>> from what marks logical lines in input or output.
>
> But CR and LF are sometimes still considered to be positioning codes, rather 
> than logical separators.

Yes, which is why I suggested that it would have made more sense to have
a *separate* logical separator.

-- 
Keith Thompson (The_Other_Keith) kst-u@mib.org  <http://www.ghoti.net/~kst>
"We must do something.  This is something.  Therefore, we must do this."
    -- Antony Jay and Jonathan Lynn, "Yes Minister"

Thread

Character Array vs String Sheky <shekhar07.nitdgp@gmail.com> - 2011-11-09 03:09 -0800
  Re: Character Array vs String Malcolm McLean <malcolm.mclean5@btinternet.com> - 2011-11-09 03:28 -0800
  Re: Character Array vs String James Kuyper <jameskuyper@verizon.net> - 2011-11-09 06:52 -0500
  Re: Character Array vs String Quentin Carbonneaux <qcarbonn@invalid.com> - 2011-11-09 12:01 +0000
    Re: Character Array vs String 88888 Dihedral <dihedral88888@googlemail.com> - 2011-11-09 04:48 -0800
      Re: Character Array vs String Nick Keighley <nick_keighley_nospam@hotmail.com> - 2011-11-09 05:53 -0800
        Re: Character Array vs String "osmium" <r124c4u102@comcast.net> - 2011-11-09 09:44 -0600
          Re: Character Array vs String Nick Keighley <nick_keighley_nospam@hotmail.com> - 2011-11-10 00:57 -0800
            Re: Character Array vs String "osmium" <r124c4u102@comcast.net> - 2011-11-10 08:56 -0600
              Re: Character Array vs String Nick Keighley <nick_keighley_nospam@hotmail.com> - 2011-11-10 08:16 -0800
                Re: Character Array vs String "Joachim Schmitz" <nospam.jojo@schmitz-digital.de> - 2011-11-10 18:34 +0100
                Re: Character Array vs String Kenneth Brody <kenbrody@spamcop.net> - 2011-11-10 14:08 -0500
                Re: Character Array vs String Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-11-10 20:52 +0000
                Re: Character Array vs String Nick Keighley <nick_keighley_nospam@hotmail.com> - 2011-11-11 01:29 -0800
              Re: Character Array vs String Lowell Gilbert <lgusenet@be-well.ilk.org> - 2011-11-10 12:29 -0500
              Re: Character Array vs String lawrence.jones@siemens.com - 2011-11-10 12:32 -0500
                Re: Character Array vs String Keith Thompson <kst-u@mib.org> - 2011-11-10 12:41 -0800
                Re: Character Array vs String jt@toerring.de (Jens Thoms Toerring) - 2011-11-11 13:12 +0000
              Re: Character Array vs String David Thompson <dave.thompson2@verizon.net> - 2011-11-21 02:39 -0500
                Re: Character Array vs String Kenneth Brody <kenbrody@spamcop.net> - 2011-11-23 11:39 -0500
                Re: Character Array vs String "BartC" <bc@freeuk.com> - 2011-11-23 17:15 +0000
                Re: Character Array vs String Kaz Kylheku <kaz@kylheku.com> - 2011-11-23 18:48 +0000
                Re: Character Array vs String Ben Pfaff <blp@cs.stanford.edu> - 2011-11-23 10:58 -0800
                Re: Character Array vs String Patrick Scheible <kkt@zipcon.net> - 2011-11-27 20:21 -0800
                Re: Character Array vs String David Thompson <dave.thompson2@verizon.net> - 2012-01-19 02:43 -0500
        Re: Character Array vs String Malcolm McLean <malcolm.mclean5@btinternet.com> - 2011-11-09 07:48 -0800
          Re: Character Array vs String James Kuyper <jameskuyper@verizon.net> - 2011-11-09 11:06 -0500
            Re: Character Array vs String Willem <willem@toad.stack.nl> - 2011-11-09 16:24 +0000
              Re: Character Array vs String James Kuyper <jameskuyper@verizon.net> - 2011-11-09 11:30 -0500
                Re: Character Array vs String "BartC" <bc@freeuk.com> - 2011-11-09 16:53 +0000
                Re: Character Array vs String Willem <willem@toad.stack.nl> - 2011-11-09 17:05 +0000
                Re: Character Array vs String Malcolm McLean <malcolm.mclean5@btinternet.com> - 2011-11-09 08:54 -0800
                Re: Character Array vs String Tobias Blass <tobiasblass@gmx.net> - 2011-11-09 21:01 +0000
                Re: Character Array vs String "BartC" <bc@freeuk.com> - 2011-11-09 21:26 +0000
                Re: Character Array vs String Nick Keighley <nick_keighley_nospam@hotmail.com> - 2011-11-10 01:11 -0800
                Re: Character Array vs String David Thompson <dave.thompson2@verizon.net> - 2011-11-21 02:39 -0500
                Re: Character Array vs String Keith Thompson <kst-u@mib.org> - 2011-11-21 00:15 -0800
                Re: Character Array vs String Keith Thompson <kst-u@mib.org> - 2011-11-09 14:06 -0800
                Re: Character Array vs String Stephen Sprunk <stephen@sprunk.org> - 2011-11-09 19:32 -0600
                Re: Character Array vs String Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-11-10 03:21 +0000
                Re: Character Array vs String "BartC" <bc@freeuk.com> - 2011-11-10 11:00 +0000
                Re: Character Array vs String Keith Thompson <kst-u@mib.org> - 2011-11-10 03:26 -0800
                Re: Character Array vs String Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-11-10 12:04 +0000
                Re: Character Array vs String Lew Pitcher <lpitcher@teksavvy.com> - 2011-11-21 12:02 -0800
                Re: Character Array vs String Kenneth Brody <kenbrody@spamcop.net> - 2011-11-23 11:42 -0500
                Re: Character Array vs String Uno <merrilljensen@q.com> - 2011-11-27 22:46 -0700
                Re: Character Array vs String Lew Pitcher <lpitcher@teksavvy.com> - 2011-11-27 23:30 -0800
                Re: Character Array vs String Nick Keighley <nick_keighley_nospam@hotmail.com> - 2011-11-28 00:22 -0800
        Re: Character Array vs String Keith Thompson <kst-u@mib.org> - 2011-11-09 13:59 -0800
    Re: Character Array vs String James Kuyper <jameskuyper@verizon.net> - 2011-11-09 08:36 -0500
      Re: Character Array vs String Quentin Carbonneaux <qcarbonn@invalid.com> - 2011-11-09 14:06 +0000
    Re: Character Array vs String Malcolm McLean <malcolm.mclean5@btinternet.com> - 2011-11-09 05:38 -0800
    Re: Character Array vs String Keith Thompson <kst-u@mib.org> - 2011-11-09 13:52 -0800
  Re: Character Array vs String Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-11-09 07:39 -0500
  Re: Character Array vs String "BartC" <bc@freeuk.com> - 2011-11-09 13:51 +0000
  Re: Character Array vs String John Bode <jfbode1029@gmail.com> - 2011-11-23 19:32 -0800
    Re: Character Array vs String James Kuyper <jameskuyper@verizon.net> - 2011-11-24 11:49 -0500

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