Re: fprintf with /r/n outputs only one line

From	glen herrmannsfeldt <gah@ugcs.caltech.edu>
Newsgroups	comp.lang.c
Subject	Re: fprintf with /r/n outputs only one line
Date	2015-09-04 04:18 +0000
Organization	Aioe.org NNTP Server
Message-ID	<msb61o$u2r$3@speranza.aioe.org> (permalink)
References	(7 earlier) <effect-function-20150830004413@ram.dialup.fu-berlin.de> <mruses$f6s$1@dont-email.me> <5c1e5cee-e77d-4eac-b27a-c5603ac5006e@googlegroups.com> <ms1btd$r00$1@dont-email.me> <ms1hpe$hg5$1@dont-email.me>

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Bartc <bc@freeuk.com> wrote:

(snip)
> As a case in point, printf() returns a negative value on failure. How 
> many programs bother to check it?

> (But printf is also a function troublesome to put into an expression 
> with other such functions because order of evaluation is not clear.)

I suspect that fclose() is one of the least checked C library
routines, but its return value is often the only one to show that
some I/O operation failed completely.  If all the file data fits
in the buffer, no actual I/O is done until fclose().

-- glen

Thread

fprintf with /r/n outputs only one line Dale <dale@dalekelly.org> - 2015-08-28 23:08 -0400
  Re: fprintf with /r/n outputs only one line Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2015-08-28 21:25 -0600
    Re: fprintf with /r/n outputs only one line Dale <dale@dalekelly.org> - 2015-08-28 23:56 -0400
  Re: fprintf with /r/n outputs only one line James Kuyper <jameskuyper@verizon.net> - 2015-08-28 23:34 -0400
    Re: fprintf with /r/n outputs only one line Dale <dale@dalekelly.org> - 2015-08-29 00:02 -0400
      Re: fprintf with /r/n outputs only one line Johann Klammer <klammerj@NOSPAM.a1.net> - 2015-08-29 06:51 +0200
        Re: fprintf with /r/n outputs only one line Jorgen Grahn <grahn+nntp@snipabacken.se> - 2015-08-29 07:30 +0000
        Re: fprintf with /r/n outputs only one line Keith Thompson <kst-u@mib.org> - 2015-08-29 01:23 -0700
      Re: fprintf with /r/n outputs only one line James Kuyper <jameskuyper@verizon.net> - 2015-08-29 11:22 -0400
        Re: fprintf with /r/n outputs only one line glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-08-29 16:59 +0000
      Re: fprintf with /r/n outputs only one line Geoff <geoff@invalid.invalid> - 2015-08-30 11:40 -0700
        Re: fprintf with /r/n outputs only one line Keith Thompson <kst-u@mib.org> - 2015-08-30 15:17 -0700
          Re: fprintf with /r/n outputs only one line Geoff <geoff@invalid.invalid> - 2015-08-30 16:21 -0700
            Re: fprintf with /r/n outputs only one line James Kuyper <jameskuyper@verizon.net> - 2015-08-30 19:45 -0400
  Re: fprintf with /r/n outputs only one line Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-08-29 14:51 +0100
    Re: fprintf with /r/n outputs only one line Ayan <selfjam@gmail.com> - 2015-08-29 10:24 -0400
      Re: fprintf with /r/n outputs only one line James Kuyper <jameskuyper@verizon.net> - 2015-08-29 11:27 -0400
      Re: fprintf with /r/n outputs only one line Ayan <selfjam@gmail.com> - 2015-08-29 14:31 -0400
      Re: fprintf with /r/n outputs only one line Keith Thompson <kst-u@mib.org> - 2015-08-29 13:31 -0700
    Re: fprintf with /r/n outputs only one line Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-08-29 16:03 +0100
      Re: fprintf with /r/n outputs only one line Ike Naar <ike@iceland.freeshell.org> - 2015-08-29 16:50 +0000
        Re: fprintf with /r/n outputs only one line Ike Naar <ike@iceland.freeshell.org> - 2015-08-29 17:05 +0000
          Re: fprintf with /r/n outputs only one line Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-08-29 19:39 +0100
            Re: fprintf with /r/n outputs only one line Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-08-29 14:05 -0700
              Re: fprintf with /r/n outputs only one line Bartc <bc@freeuk.com> - 2015-08-29 22:46 +0100
                Re: fprintf with /r/n outputs only one line Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-08-29 15:59 -0700
                Re: fprintf with /r/n outputs only one line Bartc <bc@freeuk.com> - 2015-08-30 00:31 +0100
                Re: fprintf with /r/n outputs only one line Bartc <bc@freeuk.com> - 2015-08-30 10:25 +0100
                Re: fprintf with /r/n outputs only one line Bartc <bc@freeuk.com> - 2015-08-30 13:22 +0100
                Re: fprintf with /r/n outputs only one line Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-08-31 03:18 -0700
                Re: fprintf with /r/n outputs only one line Bartc <bc@freeuk.com> - 2015-08-31 11:58 +0100
                Re: fprintf with /r/n outputs only one line Bartc <bc@freeuk.com> - 2015-08-31 13:38 +0100
                Re: fprintf with /r/n outputs only one line glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-09-04 04:18 +0000
                Re: fprintf with /r/n outputs only one line "Charles Richmond" <numerist@aquaporin4.com> - 2015-09-04 05:09 -0500
                Re: fprintf with /r/n outputs only one line Robert Wessel <robertwessel2@yahoo.com> - 2015-09-04 05:19 -0500
                Re: fprintf with /r/n outputs only one line raltbos@xs4all.nl (Richard Bos) - 2015-09-04 16:33 +0000
              Re: fprintf with /r/n outputs only one line Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-08-30 02:17 +0100
                Re: fprintf with /r/n outputs only one line Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-08-29 23:43 -0700
                Re: fprintf with /r/n outputs only one line Geoff <geoff@invalid.invalid> - 2015-08-30 11:47 -0700
                Re: fprintf with /r/n outputs only one line Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-08-30 13:18 -0700
                Re: fprintf with /r/n outputs only one line Geoff <geoff@invalid.invalid> - 2015-08-30 16:04 -0700
              Re: fprintf with /r/n outputs only one line Ike Naar <ike@iceland.freeshell.org> - 2015-08-30 07:20 +0000
              Re: fprintf with /r/n outputs only one line Tim Rentsch <txr@alumni.caltech.edu> - 2015-09-06 15:17 -0700
                Re: fprintf with /r/n outputs only one line Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-06 16:36 -0700
                Re: fprintf with /r/n outputs only one line Tim Rentsch <txr@alumni.caltech.edu> - 2015-09-07 23:19 -0700
                Re: fprintf with /r/n outputs only one line Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-09-08 02:50 -0700
            Re: fprintf with /r/n outputs only one line Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-08-30 02:14 +0100

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