Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
| From | Richard Heathfield <rjh@cpax.org.uk> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: Line read from csv file with fgets has two characters before the terminating one |
| Date | 2016-12-15 14:49 +0000 |
| Organization | Fix this later |
| Message-ID | <o2uafb$bpb$1@dont-email.me> (permalink) |
| References | (5 earlier) <o2tudm$1qtv$1@gioia.aioe.org> <o2tuov$ml2$1@dont-email.me> <o2tvfe$ohk$1@news.albasani.net> <o2u0ig$t3a$1@dont-email.me> <f7e1ed26-7f16-4699-c27c-9ae2fba1b797@verizon.net> |
On 15/12/16 14:18, James R. Kuyper wrote: > On 12/15/2016 07:00 AM, Richard Heathfield wrote: >> On 15/12/16 11:40, Melzzzzz wrote: >>> On 15/12/16 12:29 PM, Richard Heathfield wrote: >>>> On 15/12/16 11:22, Manfred wrote: >> <snip> >>>>> >>>>> It might still be worth verifying that you opened the file with the >>>>> "t" >>>>> flag. >>>> >>>> No, it's worth verifying that you didn't. The fopen function is >>>> required >>>> to recognise the following modes: >> >> <snip> >> >>>> >>>> If any other mode is used, the behaviour is undefined. >>>> >>> Hm, why undefined? It seems to me that it is completely unnecessary in >>> this case... >> >> Implementations are free to support other modes if they choose, and some >> do. Microsoft, for example, supports a "t" suffix on the mode string. >> IBM mainframe compilers support all kinds of entries in the mode string, >> such as "lrecl=xx", "recfm=X", "noseek", "blksize=xx", even >> "password=xxxxxxx". >> >> What should the Standard say about these? >> >> Should it say that they are implementation-defined? If so, every >> implementation would have to define what it does in all these cases and >> all kinds of others, which would constitute an unreasonable burden on >> implementations. > > I don't see how it would constitute an unreasonable burden - if you've > gone to the trouble of implementing a feature, and you have your own > internal documentation of that feature so your testers know what it's > supposed to do, it shouldn't a significant amount of extra work to > create corresponding user documentation. I'm not talking about the implementation that supports it. I'm talking about all the implementations that /don't/. This is what the Standard has to say about implementation-defined behaviour: "unspecified behavior where each implementation documents how the choice is made" So either every implementation has to document what happens when a mode string of, say, "lrecl=xx" is supplied, or they don't. If they do, there's the unreasonable burden I was talking about. (It's reasonable for implementations that support it to say so, but it's unreasonable to expect every implementation that does /not/ support it to say "the following modes are unsupported". And if they don't, then effectively you have undefined behaviour, so you might as well call it that. -- Richard Heathfield Email: rjh at cpax dot org dot uk "Usenet is a strange place" - dmr 29 July 1999 Sig line 4 vacant - apply within
Back to comp.lang.c | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Line read from csv file with fgets has two characters before the terminating one Alla _ <modelling.data@gmail.com> - 2016-12-14 00:04 -0800
Re: Line read from csv file with fgets has two characters before the terminating one Richard Heathfield <rjh@cpax.org.uk> - 2016-12-14 11:10 +0000
Re: Line read from csv file with fgets has two characters before the terminating one Alla _ <modelling.data@gmail.com> - 2016-12-14 23:50 -0800
Re: Line read from csv file with fgets has two characters before the terminating one Richard Heathfield <rjh@cpax.org.uk> - 2016-12-15 08:52 +0000
Re: Line read from csv file with fgets has two characters before the terminating one Alla _ <modelling.data@gmail.com> - 2016-12-15 00:58 -0800
Re: Line read from csv file with fgets has two characters before the terminating one Richard Heathfield <rjh@cpax.org.uk> - 2016-12-15 09:09 +0000
Re: Line read from csv file with fgets has two characters before the terminating one Alla _ <modelling.data@gmail.com> - 2016-12-15 04:23 -0800
Re: Line read from csv file with fgets has two characters before the terminating one Richard Heathfield <rjh@cpax.org.uk> - 2016-12-15 12:50 +0000
Re: Line read from csv file with fgets has two characters before the terminating one BartC <bc@freeuk.com> - 2016-12-15 14:14 +0000
Re: Line read from csv file with fgets has two characters before the terminating one Richard Heathfield <rjh@cpax.org.uk> - 2016-12-15 14:42 +0000
Re: Line read from csv file with fgets has two characters before the terminating one Keith Thompson <kst-u@mib.org> - 2016-12-15 09:49 -0800
Re: Line read from csv file with fgets has two characters before the terminating one gazelle@shell.xmission.com (Kenny McCormack) - 2016-12-15 17:58 +0000
Re: Line read from csv file with fgets has two characters before the terminating one BartC <bc@freeuk.com> - 2016-12-15 18:22 +0000
Re: Line read from csv file with fgets has two characters before the terminating one Keith Thompson <kst-u@mib.org> - 2016-12-15 11:51 -0800
Re: Line read from csv file with fgets has two characters before the terminating one BartC <bc@freeuk.com> - 2016-12-15 20:35 +0000
Re: Line read from csv file with fgets has two characters before the terminating one Keith Thompson <kst-u@mib.org> - 2016-12-15 12:58 -0800
Re: Line read from csv file with fgets has two characters before the terminating one Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-12-15 13:11 -0800
Re: Line read from csv file with fgets has two characters before the terminating one Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-12-16 02:14 +0000
Re: Line read from csv file with fgets has two characters before the terminating one BartC <bc@freeuk.com> - 2016-12-16 11:25 +0000
Re: Line read from csv file with fgets has two characters before the terminating one Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-12-16 16:41 +0000
Re: Line read from csv file with fgets has two characters before the terminating one BartC <bc@freeuk.com> - 2016-12-16 22:08 +0000
Re: Line read from csv file with fgets has two characters before the terminating one Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-12-17 02:48 +0000
Re: Line read from csv file with fgets has two characters before the terminating one BartC <bc@freeuk.com> - 2016-12-17 11:54 +0000
Re: Line read from csv file with fgets has two characters before the terminating one Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-12-17 15:33 +0000
Re: Line read from csv file with fgets has two characters before the terminating one supercat@casperkitty.com - 2016-12-17 08:27 -0800
Re: Line read from csv file with fgets has two characters before the terminating one BartC <bc@freeuk.com> - 2016-12-17 17:25 +0000
Re: Line read from csv file with fgets has two characters before the terminating one Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-12-17 09:53 -0800
Re: Line read from csv file with fgets has two characters before the terminating one BartC <bc@freeuk.com> - 2016-12-17 18:21 +0000
Re: Line read from csv file with fgets has two characters before the terminating one supercat@casperkitty.com - 2016-12-17 10:30 -0800
Re: Line read from csv file with fgets has two characters before the terminating one BartC <bc@freeuk.com> - 2016-12-17 22:39 +0000
Re: Line read from csv file with fgets has two characters before the terminating one Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-12-17 14:51 -0800
Re: Line read from csv file with fgets has two characters before the terminating one BartC <bc@freeuk.com> - 2016-12-17 23:12 +0000
Re: Line read from csv file with fgets has two characters before the terminating one supercat@casperkitty.com - 2016-12-18 08:37 -0800
Re: Line read from csv file with fgets has two characters before the terminating one Keith Thompson <kst-u@mib.org> - 2016-12-18 13:14 -0800
Re: Line read from csv file with fgets has two characters before the terminating one Geoff <geoff@invalid.invalid> - 2016-12-15 15:03 -0800
Re: Line read from csv file with fgets has two characters before the terminating one Keith Thompson <kst-u@mib.org> - 2016-12-15 15:29 -0800
Re: Line read from csv file with fgets has two characters before the terminating one Geoff <geoff@invalid.invalid> - 2016-12-15 20:48 -0800
Re: Line read from csv file with fgets has two characters before the terminating one Keith Thompson <kst-u@mib.org> - 2016-12-15 22:58 -0800
OSX line endings (Was: Line read from csv file with fgets has two characters before the terminating one) gazelle@shell.xmission.com (Kenny McCormack) - 2016-12-16 10:22 +0000
Re: OSX line endings (Was: Line read from csv file with fgets has two characters before the terminating one) Geoff <geoff@invalid.invalid> - 2016-12-16 07:29 -0800
Making OSX's boot drive case-sensitve (Was: OSX line endings (Was: Line read from csv file with fgets has two characters before the terminating one)) gazelle@shell.xmission.com (Kenny McCormack) - 2016-12-17 10:06 +0000
Re: Making OSX's boot drive case-sensitve (Was: OSX line endings (Was: Line read from csv file with fgets has two characters before the terminating one)) Geoff <geoff@invalid.invalid> - 2016-12-17 12:39 -0800
Re: Making OSX's boot drive case-sensitve (Was: OSX line endings (Was: Line read from csv file with fgets has two characters before the terminating one)) gazelle@shell.xmission.com (Kenny McCormack) - 2016-12-18 13:54 +0000
Re: Making OSX's boot drive case-sensitve (Was: OSX line endings (Was: Line read from csv file with fgets has two characters before the terminating one)) Geoff <geoff@invalid.invalid> - 2016-12-18 17:57 -0800
Re: Line read from csv file with fgets has two characters before the terminating one Geoff <geoff@invalid.invalid> - 2016-12-16 07:12 -0800
Re: Line read from csv file with fgets has two characters before the terminating one Keith Thompson <kst-u@mib.org> - 2016-12-16 12:02 -0800
Re: Line read from csv file with fgets has two characters before the terminating one Richard Heathfield <rjh@cpax.org.uk> - 2016-12-15 23:29 +0000
Re: Line read from csv file with fgets has two characters before the terminating one Alla _ <modelling.data@gmail.com> - 2016-12-16 02:37 -0800
Re: Line read from csv file with fgets has two characters before the terminating one Geoff <geoff@invalid.invalid> - 2016-12-16 07:51 -0800
Re: Line read from csv file with fgets has two characters before the terminating one Manfred <noname@invalid.add> - 2016-12-15 12:22 +0100
Re: Line read from csv file with fgets has two characters before the terminating one Richard Heathfield <rjh@cpax.org.uk> - 2016-12-15 11:29 +0000
Re: Line read from csv file with fgets has two characters before the terminating one Melzzzzz <Melzzzzz@zzzzz.com> - 2016-12-15 12:40 +0100
Re: Line read from csv file with fgets has two characters before the terminating one Richard Heathfield <rjh@cpax.org.uk> - 2016-12-15 12:00 +0000
Re: Line read from csv file with fgets has two characters before the terminating one Melzzzzz <mel@zzzzz.com> - 2016-12-15 13:09 +0100
Re: Line read from csv file with fgets has two characters before the terminating one Richard Heathfield <rjh@cpax.org.uk> - 2016-12-15 12:43 +0000
Re: Line read from csv file with fgets has two characters before the terminating one "James R. Kuyper" <jameskuyper@verizon.net> - 2016-12-15 09:18 -0500
Re: Line read from csv file with fgets has two characters before the terminating one Richard Heathfield <rjh@cpax.org.uk> - 2016-12-15 14:49 +0000
Re: Line read from csv file with fgets has two characters before the terminating one "James R. Kuyper" <jameskuyper@verizon.net> - 2016-12-15 10:34 -0500
Re: Line read from csv file with fgets has two characters before the terminating one Manfred <noname@invalid.add> - 2016-12-15 16:34 +0100
Re: Line read from csv file with fgets has two characters before the terminating one Alla _ <modelling.data@gmail.com> - 2016-12-15 00:22 -0800
Re: Line read from csv file with fgets has two characters before the terminating one Richard Heathfield <rjh@cpax.org.uk> - 2016-12-15 09:04 +0000
Re: Line read from csv file with fgets has two characters before the terminating one mark.bluemel@gmail.com - 2016-12-14 03:38 -0800
csiph-web