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| From | Keith Thompson <kst-u@mib.org> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: scanf used for to get a line |
| Date | 2016-11-03 09:38 -0700 |
| Organization | None to speak of |
| Message-ID | <lnfun8zffj.fsf@kst-u.example.com> (permalink) |
| References | <15ea8d6d-0173-491c-b6b5-b1c57dd61769@googlegroups.com> <236c25a6-8c18-4082-ab3a-86eb55fb2408@googlegroups.com> <nvfoa6$lsu$1@dont-email.me> |
"Charles Richmond" <numerist@aquaporin4.com> writes:
> <mark.bluemel@gmail.com> wrote in message
> news:236c25a6-8c18-4082-ab3a-86eb55fb2408@googlegroups.com...
>> On Tuesday, 1 November 2016 08:50:54 UTC, asetof...@gmail.com wrote:
>>> What about:
>>> char a[1024], c;
>>> int w, r;
>>> r=scanf("%1024[^\n]%c",a,&c);
>>> if(r<1)error();
>>> in the case \n is 2 characters?
>>
>> Scanf to read a line is a poor choice, but you need to understand that a
>> text stream, like stdin, will have platform specific line endings mapped
>> to a single character represented as '\n'
>>
>
> You might have fewer problems if you read the line with "fgets()" and then
> use "sscanf()" to parse out the results.
But be careful. sscanf() has undefined behavior on numeric overflow.
--
Keith Thompson (The_Other_Keith) kst-u@mib.org <http://www.ghoti.net/~kst>
Working, but not speaking, for JetHead Development, Inc.
"We must do something. This is something. Therefore, we must do this."
-- Antony Jay and Jonathan Lynn, "Yes Minister"
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scanf used for to get a line asetofsymbols@gmail.com - 2016-11-01 01:50 -0700
scanf used for to get a line asetofsymbols@gmail.com - 2016-11-01 01:55 -0700
Re: scanf used for to get a line mark.bluemel@gmail.com - 2016-11-01 03:55 -0700
Re: scanf used for to get a line "Charles Richmond" <numerist@aquaporin4.com> - 2016-11-03 11:23 -0500
Re: scanf used for to get a line Keith Thompson <kst-u@mib.org> - 2016-11-03 09:38 -0700
Re: scanf used for to get a line supercat@casperkitty.com - 2016-11-03 10:08 -0700
Re: scanf used for to get a line Keith Thompson <kst-u@mib.org> - 2016-11-03 11:29 -0700
Re: scanf used for to get a line supercat@casperkitty.com - 2016-11-03 14:37 -0700
Re: scanf used for to get a line Keith Thompson <kst-u@mib.org> - 2016-11-03 16:34 -0700
Re: scanf used for to get a line supercat@casperkitty.com - 2016-11-04 10:21 -0700
Re: scanf used for to get a line Keith Thompson <kst-u@mib.org> - 2016-11-04 11:46 -0700
Re: scanf used for to get a line supercat@casperkitty.com - 2016-11-04 15:04 -0700
Re: scanf used for to get a line Keith Thompson <kst-u@mib.org> - 2016-11-04 16:44 -0700
Re: scanf used for to get a line supercat@casperkitty.com - 2016-11-04 17:13 -0700
Re: scanf used for to get a line Keith Thompson <kst-u@mib.org> - 2016-11-04 19:12 -0700
Re: scanf used for to get a line supercat@casperkitty.com - 2016-11-05 14:10 -0700
Re: scanf used for to get a line Keith Thompson <kst-u@mib.org> - 2016-11-05 14:22 -0700
Re: scanf used for to get a line Tim Rentsch <txr@alumni.caltech.edu> - 2016-11-15 10:57 -0800
Re: scanf used for to get a line supercat@casperkitty.com - 2016-11-15 12:05 -0800
Re: scanf used for to get a line jameskuyper@verizon.net - 2016-11-15 14:01 -0800
Re: scanf used for to get a line Tim Rentsch <txr@alumni.caltech.edu> - 2016-11-16 10:54 -0800
Re: scanf used for to get a line Richard Damon <Richard@Damon-Family.org> - 2016-11-21 18:01 -0500
Re: scanf used for to get a line supercat@casperkitty.com - 2016-11-21 15:44 -0800
Re: scanf used for to get a line asetofsymbols@gmail.com - 2016-11-03 13:35 -0700
Re: scanf used for to get a line Keith Thompson <kst-u@mib.org> - 2016-11-03 13:50 -0700
Re: scanf used for to get a line ImperiusDamian <damianblack.wolf@gmail.com> - 2016-11-05 16:10 -0400
Re: scanf used for to get a line Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-11-01 11:39 +0000
Re: scanf used for to get a line asetofsymbols@gmail.com - 2016-11-01 05:47 -0700
Re: scanf used for to get a line Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-11-01 15:05 +0000
Re: scanf used for to get a line asetofsymbols@gmail.com - 2016-11-02 01:42 -0700
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