Re: Function to trim trailing spaces

From	scott@slp53.sl.home (Scott Lurndal)
Subject	Re: Function to trim trailing spaces
Newsgroups	comp.lang.c
References	(3 earlier) <ln1s521h8v.fsf@kst-u.example.com> <pTo2E.115832$Fj3.56469@fx06.iad> <5c4a1af5$0$3539$426a74cc@news.free.fr> <1ap2E.215322$Z45.42723@fx44.iad> <5c4a2152$0$20331$426a74cc@news.free.fr>
Message-ID	<Teq2E.86129$375.28604@fx40.iad> (permalink)
Organization	UsenetServer - www.usenetserver.com
Date	2019-01-24 21:37 +0000

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Mateusz Viste <mateusz@wont.tell> writes:
>On Thu, 24 Jan 2019 20:24:29 +0000, Scott Lurndal wrote:
>> Mateusz Viste <mateusz@wont.tell> writes:
>>>On Thu, 24 Jan 2019 15:06:29 -0500, DFS wrote:
>>>>> In the program you posted, you can't tell whether it fails because
>>>>> you don't test the result.
>>>> 
>>>> How could   fseek(stdin,0,SEEK_END);   ever fail?
>>>
>>>It could fail if you closed stdin. That's something daemons commonly do.
>> 
>> Most demons will re-open "/dev/null" on fd0.
>
>This only means that fseek() would "mostly work". Is that good enough? I 
>think it is not.

I dunno.  In over forty years of C and Posix programming, I've never
needed to use fseek(3) at all.    seek(2) and later lseek(2) yes, fseek(3) never.  But then,
I typically avoid stdio for most real world usage scenarios; favoring mmap()
or pread(2)/pwrite(2) for most cases.

Thread

Function to trim trailing spaces DFS <nospam@dfs.com> - 2019-01-23 21:00 -0500
  Re: Function to trim trailing spaces Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2019-01-23 19:14 -0700
    Re: Function to trim trailing spaces DFS <nospam@dfs.com> - 2019-01-23 23:41 -0500
      Re: Function to trim trailing spaces Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2019-01-23 22:40 -0700
        Re: Function to trim trailing spaces Bart <bc@freeuk.com> - 2019-01-24 10:44 +0000
        Re: Function to trim trailing spaces DFS <nospam@dfs.com> - 2019-01-24 11:20 -0500
          Re: Function to trim trailing spaces Bart <bc@freeuk.com> - 2019-01-24 16:47 +0000
            Re: Function to trim trailing spaces DFS <nospam@dfs.com> - 2019-01-24 13:51 -0500
          Re: Function to trim trailing spaces Manfred <noname@invalid.add> - 2019-01-24 17:49 +0100
        Re: Function to trim trailing spaces James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-01-24 08:52 -0800
          Re: Function to trim trailing spaces Bart <bc@freeuk.com> - 2019-01-24 17:40 +0000
          Re: Function to trim trailing spaces James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-01-24 12:08 -0800
            Re: Function to trim trailing spaces Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2019-01-24 14:47 -0700
              Re: Function to trim trailing spaces scott@slp53.sl.home (Scott Lurndal) - 2019-01-25 14:40 +0000
          Re: Function to trim trailing spaces Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2019-01-24 14:44 -0700
      Re: Function to trim trailing spaces Barry Schwarz <schwarzb@dqel.com> - 2019-01-23 23:39 -0800
        Re: Function to trim trailing spaces Rosario19 <Ros@invalid.invalid> - 2019-01-24 10:49 +0100
          Re: Function to trim trailing spaces mark.bluemel@gmail.com - 2019-01-24 01:55 -0800
    Re: Function to trim trailing spaces "Pascal J. Bourguignon" <pjb@informatimago.com> - 2019-01-24 12:58 +0100
    Re: Function to trim trailing spaces Nathan Wagner <nw@hydaspes.if.org> - 2019-01-24 03:01 +0000
  Re: Function to trim trailing spaces Keith Thompson <kst-u@mib.org> - 2019-01-23 18:46 -0800
    Re: Function to trim trailing spaces DFS <nospam@dfs.com> - 2019-01-23 23:38 -0500
      Re: Function to trim trailing spaces Barry Schwarz <schwarzb@dqel.com> - 2019-01-23 23:39 -0800
        Re: Function to trim trailing spaces DFS <nospam@dfs.com> - 2019-01-24 11:25 -0500
          Re: Function to trim trailing spaces mark.bluemel@gmail.com - 2019-01-24 08:34 -0800
          Re: Function to trim trailing spaces Barry Schwarz <schwarzb@dqel.com> - 2019-01-24 15:05 -0800
            Re: Function to trim trailing spaces DFS <nospam@dfs.com> - 2019-01-24 18:40 -0500
      Re: Function to trim trailing spaces Keith Thompson <kst-u@mib.org> - 2019-01-24 02:29 -0800
        Re: Function to trim trailing spaces DFS <nospam@dfs.com> - 2019-01-24 15:06 -0500
          Re: Function to trim trailing spaces Mateusz Viste <mateusz@wont.tell> - 2019-01-24 20:07 +0000
            Re: Function to trim trailing spaces scott@slp53.sl.home (Scott Lurndal) - 2019-01-24 20:24 +0000
              Re: Function to trim trailing spaces Mateusz Viste <mateusz@wont.tell> - 2019-01-24 20:34 +0000
                Re: Function to trim trailing spaces scott@slp53.sl.home (Scott Lurndal) - 2019-01-24 21:37 +0000
          Re: Function to trim trailing spaces Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2019-01-24 15:34 -0500
          Re: Function to trim trailing spaces James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-01-24 13:19 -0800
          Re: Function to trim trailing spaces Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2019-01-24 14:52 -0700
            Re: Function to trim trailing spaces James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-01-24 14:30 -0800
              Re: Function to trim trailing spaces Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2019-01-24 16:59 -0700
          Re: Function to trim trailing spaces Keith Thompson <kst-u@mib.org> - 2019-01-24 14:51 -0800
  Re: Function to trim trailing spaces mark.bluemel@gmail.com - 2019-01-24 01:06 -0800
    Re: Function to trim trailing spaces Keith Thompson <kst-u@mib.org> - 2019-01-24 02:13 -0800
      Re: Function to trim trailing spaces mark.bluemel@gmail.com - 2019-01-24 03:46 -0800
    Re: Function to trim trailing spaces Anton Shepelev <anton.txt@g{oogle}mail.com> - 2019-01-24 14:56 +0300
      Re: Function to trim trailing spaces mark.bluemel@gmail.com - 2019-01-24 05:14 -0800
      Re: Function to trim trailing spaces Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-01-24 18:51 +0000
        Re: Function to trim trailing spaces "Pascal J. Bourguignon" <pjb@informatimago.com> - 2019-01-24 20:04 +0100
          Re: Function to trim trailing spaces Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-01-24 20:25 +0000
          Re: Function to trim trailing spaces Anton Shepelev <anton.txt@gmail.com> - 2019-01-24 23:50 +0300
        Re: Function to trim trailing spaces Anton Shepelev <anton.txt@gmail.com> - 2019-01-24 23:45 +0300
          Re: Function to trim trailing spaces Anton Shepelev <anton.txt@gmail.com> - 2019-01-24 23:54 +0300
      Re: Function to trim trailing spaces Ralf Damaschke <rwspam@gmx.de> - 2019-01-24 22:43 +0000
  Re: Function to trim trailing spaces Bart <bc@freeuk.com> - 2019-01-24 10:57 +0000
    Re: Function to trim trailing spaces Bart <bc@freeuk.com> - 2019-01-24 23:05 +0000
  Function to trim trailing spaces "I Set My Girlfriend's Pantyhose on Fire" <cdalten@gmail.com> - 2019-01-24 03:53 -0800

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