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Re: fscan: about it

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Ian Collins <ian-news@hotmail.com> writes:
> On 11/ 5/11 11:41 AM, Pasquale Frega wrote:
>> Ok, a simple question: can fscan get a simple return with nothing or a
>> simple escape or anything?
>
> I assume you meant scanf?
>
>> please try this simple code:
>> #include<stdio.h>;
>
> Don't put a semicolon after an include directive.
>
>> #include<math.h>;
>> int main(void) {
>>          int i;
>>          puts("Enter an int number");
>>          fscan("%d",&i);
>>          printf("You have entered:&d\n", i);
>> }
>
> You really should post something that compiles.

With gcc, it compiles with a couple of warnings.  By my reading of
6.10.2, an extra semicolon on a #include directive doesn't even violate
a constraint or syntax rule (but it does have undefined behavior).

The typo "&d" for "%d" doesn't even cause undefined behavior; it just
prints the string literal and ignores the second argument.

-- 
Keith Thompson (The_Other_Keith) kst-u@mib.org  <http://www.ghoti.net/~kst>
"We must do something.  This is something.  Therefore, we must do this."
    -- Antony Jay and Jonathan Lynn, "Yes Minister"

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Thread

fscan: about it Pasquale Frega <zemir_fp@libero.it> - 2011-11-04 15:41 -0700
  Re: fscan: about it Ian Collins <ian-news@hotmail.com> - 2011-11-05 11:54 +1300
    Re: fscan: about it Keith Thompson <kst-u@mib.org> - 2011-11-04 23:04 -0700
      Re: fscan: about it Ian Collins <ian-news@hotmail.com> - 2011-11-05 20:12 +1300
        Re: fscan: about it Pasquale Frega <zemir_fp@libero.it> - 2011-11-05 04:47 -0700
          Re: fscan: about it James Kuyper <jameskuyper@verizon.net> - 2011-11-05 08:58 -0400
          Re: fscan: about it Keith Thompson <kst-u@mib.org> - 2011-11-05 13:28 -0700
  Re: fscan: about it Nick Keighley <nick_keighley_nospam@hotmail.com> - 2011-11-04 16:00 -0700
  Re: fscan: about it John Gordon <gordon@panix.com> - 2011-11-04 23:57 +0000

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