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Groups > comp.lang.c > #126708

Re: Text Files

From Ben Bacarisse <ben.usenet@bsb.me.uk>
Newsgroups comp.lang.c
Subject Re: Text Files
Date 2018-02-14 22:51 +0000
Organization A noiseless patient Spider
Message-ID <87mv0b9ocq.fsf@bsb.me.uk> (permalink)
References <5a8459d1$0$707$14726298@news.sunsite.dk>

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G B <gb@gb.com> writes:

> If you have a text file of numbers, what is the best way to read
> numbers line by line and do some tests on numbers for that line before
> moving to the next line?

You've had some C answers but I'd raise another question -- why C?
There are many languages designed for rapid data analysis and though you
have learn one (or more), I've found the effort to be well worth it in
the long run.

If this is just a programming exercise, then fine, but if it's "for
real" it's very unlikely that C is going to be the tool for this job.

for serious numerical work, Fortran is probably still the top dog -- you
can read and print the data you show in a single input or output
operation in Fortran, but for more general work, AWK, Perl, R and Python
(especially numpy) are all widely used.

<snip>
-- 
Ben.

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Thread

Text Files G B <gb@gb.com> - 2018-02-14 11:47 -0400
  Re: Text Files Ed Prochak <edprochak@gmail.com> - 2018-02-14 08:45 -0800
  Re: Text Files Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-02-14 08:47 -0800
    Re: Text Files already5chosen@yahoo.com - 2018-02-15 01:17 -0800
  Re: Text Files gordonb.ea2mq@burditt.org (Gordon Burditt) - 2018-02-14 11:10 -0600
  Re: Text Files "James R. Kuyper" <jameskuyper@verizon.net> - 2018-02-14 12:28 -0500
  Re: Text Files jt@toerring.de (Jens Thoms Toerring) - 2018-02-14 21:07 +0000
  Re: Text Files Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2018-02-14 15:31 -0700
    Re: Text Files Jorgen Grahn <grahn+nntp@snipabacken.se> - 2018-02-15 06:59 +0000
      Re: Text Files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-02-15 10:20 +0000
  Re: Text Files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-02-14 22:51 +0000
    Re: Text Files David Brown <david.brown@hesbynett.no> - 2018-02-15 11:04 +0100
      Re: Text Files Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-02-15 06:16 -0800
        Re: Text Files "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2018-02-15 22:22 +0800
        Re: Text Files David Brown <david.brown@hesbynett.no> - 2018-02-15 15:58 +0100
          Re: Text Files bartc <bc@freeuk.com> - 2018-02-15 16:31 +0000
            Re: Text Files David Brown <david.brown@hesbynett.no> - 2018-02-15 21:31 +0100
              Re: Text Files bartc <bc@freeuk.com> - 2018-02-15 21:21 +0000
                Re: Text Files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-02-15 22:17 +0000
                Re: Text Files bartc <bc@freeuk.com> - 2018-02-15 23:36 +0000
                Re: Text Files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-02-15 23:48 +0000
                Re: Text Files David Brown <david.brown@hesbynett.no> - 2018-02-16 10:09 +0100
                Re: Text Files bartc <bc@freeuk.com> - 2018-02-16 12:57 +0000
                Re: Text Files David Brown <david.brown@hesbynett.no> - 2018-02-16 15:50 +0100
                Re: Text Files bartc <bc@freeuk.com> - 2018-02-16 15:50 +0000
                Re: Text Files David Brown <david.brown@hesbynett.no> - 2018-02-16 17:07 +0100
                Re: Text Files bartc <bc@freeuk.com> - 2018-02-16 20:44 +0000
                Re: Text Files Ian Collins <ian-news@hotmail.com> - 2018-02-17 11:22 +1300
                Re: Text Files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-02-16 17:48 +0000
                Re: Text Files GOTHIER Nathan <nathan.gothier@gmail.com> - 2018-02-16 17:06 +0100
                Re: Text Files Ian Collins <ian-news@hotmail.com> - 2018-02-17 11:10 +1300
                Re: Text Files supercat@casperkitty.com - 2018-02-16 14:48 -0800
                Re: Text Files Keith Thompson <kst-u@mib.org> - 2018-02-16 15:14 -0800
                Re: Text Files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-02-16 23:25 +0000
                Re: Text Files supercat@casperkitty.com - 2018-02-16 15:50 -0800
          Re: Text Files already5chosen@yahoo.com - 2018-02-16 07:19 -0800
            Re: Text Files David Brown <david.brown@hesbynett.no> - 2018-02-16 17:13 +0100
              Re: Text Files Jorgen Grahn <grahn+nntp@snipabacken.se> - 2018-02-19 17:55 +0000
                Re: Text Files David Brown <david.brown@hesbynett.no> - 2018-02-19 19:14 +0100
                Re: Text Files Keith Thompson <kst-u@mib.org> - 2018-02-19 11:48 -0800
            Re: Text Files Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-02-16 08:14 -0800
              Re: Text Files Robert Wessel <robertwessel2@yahoo.com> - 2018-02-17 18:32 -0600
    Re: Text Files jacobnavia <jacob@jacob.remcomp.fr> - 2018-02-15 22:57 +0100
      Re: Text Files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-02-15 22:58 +0000
        Re: Text Files bartc <bc@freeuk.com> - 2018-02-16 00:19 +0000
          Re: Text Files bartc <bc@freeuk.com> - 2018-02-16 02:26 +0000
            Re: Text Files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-02-16 02:57 +0000
              Re: Text Files asetofsymbols@gmail.com - 2018-02-16 00:21 -0800
                Re: Text Files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-02-16 11:30 +0000
          Re: Text Files David Brown <david.brown@hesbynett.no> - 2018-02-16 10:36 +0100
            Re: Text Files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-02-16 11:36 +0000
              Re: Text Files David Brown <david.brown@hesbynett.no> - 2018-02-16 13:10 +0100
                Re: Text Files bartc <bc@freeuk.com> - 2018-02-16 12:25 +0000
                Re: Text Files Ike Naar <ike@iceland.freeshell.org> - 2018-03-06 19:33 +0000
                Re: Text Files bartc <bc@freeuk.com> - 2018-03-06 20:55 +0000
                Re: Text Files Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-02-16 04:42 -0800
                Re: Text Files David Brown <david.brown@hesbynett.no> - 2018-02-16 16:58 +0100
                Re: Text Files bartc <bc@freeuk.com> - 2018-02-16 20:02 +0000
                Re: Text Files David Brown <david.brown@hesbynett.no> - 2018-02-16 21:43 +0100
                Re: Text Files Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-02-17 04:01 -0800
                Re: Text Files bartc <bc@freeuk.com> - 2018-02-17 13:10 +0000
                Re: Text Files Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-02-17 05:27 -0800
                Re: Text Files bartc <bc@freeuk.com> - 2018-02-17 14:20 +0000
                Re: Text Files Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2018-02-16 09:04 -0700
                Re: Text Files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-02-16 14:31 +0000
                Re: Text Files Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-02-16 06:42 -0800
                Re: Text Files bartc <bc@freeuk.com> - 2018-02-16 14:58 +0000
                Re: Text Files Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-02-16 07:23 -0800
                Re: Text Files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-02-16 15:24 +0000
              Re: Text Files Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-02-16 04:13 -0800
                Re: Text Files Siri Cruise <chine.bleu@yahoo.com> - 2018-02-16 04:29 -0800
                Re: Text Files Jorgen Grahn <grahn+nntp@snipabacken.se> - 2018-02-20 16:41 +0000
                Re: Text Files Siri Cruise <chine.bleu@yahoo.com> - 2018-02-20 09:39 -0800
                Re: Text Files Jorgen Grahn <grahn+nntp@snipabacken.se> - 2018-02-20 19:16 +0000
  Re: Text Files bartc <bc@freeuk.com> - 2018-02-15 12:46 +0000
    Re: Text Files GOTHIER Nathan <nathan.gothier@gmail.com> - 2018-02-15 14:52 +0100
    Re: Text Files Anton Shepelev <anton.txt@g{oogle}mail.com> - 2018-02-15 17:07 +0300
      Re: Text Files bartc <bc@freeuk.com> - 2018-02-15 14:23 +0000
        Re: Text Files Anton Shepelev <anton.txt@g{oogle}mail.com> - 2018-02-15 18:52 +0300
    Re: Text Files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-02-15 14:39 +0000
      Re: Text Files bartc <bc@freeuk.com> - 2018-02-15 15:43 +0000
        Re: Text Files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-02-15 20:32 +0000
          Re: Text Files bartc <bc@freeuk.com> - 2018-02-15 22:06 +0000
            Re: Text Files GOTHIER Nathan <nathan.gothier@gmail.com> - 2018-02-15 23:12 +0100
            Re: Text Files Keith Thompson <kst-u@mib.org> - 2018-02-15 15:12 -0800
              Re: Text Files bartc <bc@freeuk.com> - 2018-02-15 23:43 +0000
                Re: Text Files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-02-15 23:54 +0000
            Re: Text Files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-02-15 23:35 +0000
          Re: Text Files Tim Rentsch <txr@alumni.caltech.edu> - 2018-02-16 17:07 -0800
            Re: Text Files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-02-17 02:38 +0000
              Re: Text Files Ian Collins <ian-news@hotmail.com> - 2018-02-17 17:26 +1300
                Re: Text Files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-02-17 11:22 +0000
                Re: Text Files bartc <bc@freeuk.com> - 2018-02-17 12:07 +0000
                Re: Text Files Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-02-17 04:17 -0800
                Re: Text Files Anton Shepelev <anton.txt@gmail.com> - 2018-02-17 16:25 +0300
                Re: Text Files Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-02-17 07:35 -0800
                Re: Text Files GOTHIER Nathan <nathan.gothier@gmail.com> - 2018-02-17 15:24 +0100
                Re: Text Files Ian Collins <ian-news@hotmail.com> - 2018-02-18 11:10 +1300
              Re: Text Files Tim Rentsch <txr@alumni.caltech.edu> - 2018-02-19 12:05 -0800
                Re: Text Files already5chosen@yahoo.com - 2018-02-19 15:32 -0800
                Re: Text Files Tim Rentsch <txr@alumni.caltech.edu> - 2018-02-21 10:34 -0800
                Re: Text Files already5chosen@yahoo.com - 2018-02-21 15:35 -0800
                Re: Text Files bartc <bc@freeuk.com> - 2018-02-22 00:11 +0000
                Re: Text Files Robert Wessel <robertwessel2@yahoo.com> - 2018-02-21 18:26 -0600
                Re: Text Files Tim Rentsch <txr@alumni.caltech.edu> - 2018-02-21 21:39 -0800
                Re: Text Files Robert Wessel <robertwessel2@yahoo.com> - 2018-02-23 03:08 -0600
                Re: Text Files supercat@casperkitty.com - 2018-02-23 16:16 -0800
                Re: Text Files Keith Thompson <kst-u@mib.org> - 2018-02-23 16:46 -0800
                Re: Text Files Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-02-24 02:49 -0800
                Re: Text Files asetofsymbols@gmail.com - 2018-02-24 05:16 -0800
                Re: Text Files "F. Russell" <fr@random.info> - 2018-02-24 14:35 +0000
                Re: Text Files Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2018-02-24 08:48 -0700
                Re: Text Files supercat@casperkitty.com - 2018-02-25 15:09 -0800
                Re: Text Files Keith Thompson <kst-u@mib.org> - 2018-02-25 15:54 -0800
                Re: Text Files supercat@casperkitty.com - 2018-02-26 11:04 -0800
                Re: Text Files Keith Thompson <kst-u@mib.org> - 2018-02-26 11:52 -0800
                Re: Text Files supercat@casperkitty.com - 2018-02-26 14:12 -0800
                Re: Text Files Keith Thompson <kst-u@mib.org> - 2018-02-26 14:40 -0800
                Re: Text Files already5chosen@yahoo.com - 2018-02-22 04:58 -0800
                Re: Text Files Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-02-22 05:33 -0800
                Re: Text Files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-02-22 13:59 +0000
                Re: Text Files Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-02-22 07:24 -0800
              Re: Text Files supercat@casperkitty.com - 2018-02-20 12:14 -0800
        Re: Text Files David Brown <david.brown@hesbynett.no> - 2018-02-15 21:37 +0100
          Re: Text Files bartc <bc@freeuk.com> - 2018-02-15 21:34 +0000
            Re: Text Files Keith Thompson <kst-u@mib.org> - 2018-02-15 14:15 -0800
            Re: Text Files David Brown <david.brown@hesbynett.no> - 2018-02-16 10:47 +0100
  Re: Text Files "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2018-02-15 22:20 +0800
  Re: Text Files "F. Russell" <fr@random.info> - 2018-02-15 15:24 +0000
    Re: Text Files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-02-15 16:05 +0000
    Re: Text Files "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2018-02-16 00:22 +0800
    Re: Text Files Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2018-02-15 13:35 -0700
  Re: Text Files Anton Shepelev <anton.txt@gmail.com> - 2018-02-25 00:13 +0300
    Re: Text Files bartc <bc@freeuk.com> - 2018-02-24 21:24 +0000
      Re: Text Files Anton Shepelev <anton.txt@gmail.com> - 2018-02-25 14:55 +0300
        Re: Text Files bartc <bc@freeuk.com> - 2018-02-25 13:00 +0000
    Re: Text Files Real Troll <Real.Troll@Trolls.com> - 2018-02-24 17:35 -0400
    Re: Text Files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-02-24 21:36 +0000
      Re: Text Files Real Troll <Real.Troll@Trolls.com> - 2018-02-24 17:45 -0400
      Re: Text Files Jorgen Grahn <grahn+nntp@snipabacken.se> - 2018-02-24 22:51 +0000
        Re: Text Files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-02-24 23:56 +0000
          Re: Text Files bartc <bc@freeuk.com> - 2018-02-25 00:14 +0000
            Re: Text Files bartc <bc@freeuk.com> - 2018-02-25 00:22 +0000
            Re: Text Files Anton Shepelev <anton.txt@gmail.com> - 2018-02-25 15:16 +0300
              Re: Text Files Keith Thompson <kst-u@mib.org> - 2018-02-25 15:20 -0800
                Re: Text Files Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2018-02-25 20:27 -0700
                Re: Text Files gazelle@shell.xmission.com (Kenny McCormack) - 2018-02-26 06:19 +0000
                Re: Text Files Anton Shepelev <anton.txt@g{oogle}mail.com> - 2018-02-26 15:35 +0300
                Re: Text Files Reinhardt Behm <rbehm@hushmail.com> - 2018-02-26 20:53 +0800
                Grammar Patrol (Was: Text Files) gazelle@shell.xmission.com (Kenny McCormack) - 2018-02-26 17:54 +0000
                Re: Text Files Jorgen Grahn <grahn+nntp@snipabacken.se> - 2018-02-26 15:27 +0000
                Re: Text Files Anton Shepelev <anton.txt@g{oogle}mail.com> - 2018-02-26 18:50 +0300
                Re: Text Files Keith Thompson <kst-u@mib.org> - 2018-02-26 09:26 -0800
                Re: Text Files scott@slp53.sl.home (Scott Lurndal) - 2018-02-26 19:46 +0000
                Re: Text Files David Brown <david.brown@hesbynett.no> - 2018-02-27 09:04 +0100
                Re: Text Files already5chosen@yahoo.com - 2018-02-27 00:56 -0800
                Re: Text Files Ian Collins <ian-news@hotmail.com> - 2018-02-27 22:07 +1300
                Re: Text Files David Brown <david.brown@hesbynett.no> - 2018-02-27 14:37 +0100
                Re: Text Files already5chosen@yahoo.com - 2018-02-27 07:38 -0800
                Re: Text Files supercat@casperkitty.com - 2018-02-27 09:18 -0800
                Re: Text Files David Brown <david.brown@hesbynett.no> - 2018-02-27 10:15 +0100
                Re: Text Files Keith Thompson <kst-u@mib.org> - 2018-02-27 08:53 -0800
                Re: Text Files Tim Rentsch <txr@alumni.caltech.edu> - 2018-02-26 23:14 -0800
                Re: Text Files Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2018-02-26 08:32 -0700
                Re: Text Files Keith Thompson <kst-u@mib.org> - 2018-02-26 09:17 -0800
                Re: Text Files Tim Rentsch <txr@alumni.caltech.edu> - 2018-02-26 22:55 -0800
      Re: Text Files Anton Shepelev <anton.txt@gmail.com> - 2018-02-25 15:02 +0300
        Re: Text Files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-02-25 20:12 +0000

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