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Groups > comp.lang.c > #7819

Re: Scanf Problem

From Ike Naar <ike@sverige.freeshell.org>
Newsgroups comp.lang.c
Subject Re: Scanf Problem
Date 2011-07-07 07:28 +0000
Organization A noiseless patient Spider
Message-ID <slrn3vfsj1ao0k.g6i.ike@sverige.freeshell.org> (permalink)
References <eab46c07-89fa-43e1-a2ec-b44b69fcb80b@x41g2000yqd.googlegroups.com> <iv3cnl$b0p$1@reader1.panix.com> <77b19eb4-22ee-47d8-8760-1ebd1c5c4622@d22g2000yqn.googlegroups.com>

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On 2011-07-07, LJ <djtheshowstopper@gmail.com> wrote:
> On Jul 7, 9:29?am, John Gordon <gor...@panix.com> wrote:
>> In <eab46c07-89fa-43e1-a2ec-b44b69fcb...@x41g2000yqd.googlegroups.com> LJ <djtheshowstop...@gmail.com> writes:
>>
>> > K&R says that the scanf format string may contain ordinary characters,
>> > which are expected to match the next non-white space character of the
>> > input stream.
>> > However when I am reading the date given as 25 ? ? ? ? ? /
>> > 12 ? ? ?/ ? ? ? ? 1988 ?using scanf( "%d/%d/%d", &day, &month,
>> > &year ); it is only reading the day. Why is it not reading the month
>> > and year??
>>
>> Probably because your input contains spaces which the format string wasn't
>> told to look for.
>
> That doesn't answer my question, '/' should match the next non-
> whitespace character and in input that character is '/' only, so scanf
> shud read all the three dates

It does answer your question; you should tell scanf to skip
the whitespace.
Read your scanf documentation. Hint: "d% / %d / %d".

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Thread

Scanf Problem LJ <djtheshowstopper@gmail.com> - 2011-07-06 21:19 -0700
  Re: Scanf Problem John Gordon <gordon@panix.com> - 2011-07-07 04:29 +0000
    Re: Scanf Problem LJ <djtheshowstopper@gmail.com> - 2011-07-06 23:40 -0700
      Re: Scanf Problem Ike Naar <ike@sverige.freeshell.org> - 2011-07-07 07:28 +0000
      Re: Scanf Problem Malcolm McLean <malcolm.mclean5@btinternet.com> - 2011-07-07 02:00 -0700
  Re: Scanf Problem lawrence.jones@siemens.com - 2011-07-10 15:32 -0400

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