Getc or Getchar is not reading data

[Emmanuel Delahaye]

Re: Getc or Getchar is not reading data

Pradyut a écrit :
[color=blue]
> This is not a good solution but a works well[/color]

No, it doesn't work at all.
[color=blue]
> fflush(stdin);[/color]

This statement invokes an undefined behaviour. It has been explained
before in the thread that you should have read before posting...

--
A+

Emmanuel Delahaye

[Emmanuel Delahaye]

Re: Getc or Getchar is not reading data

Pradyut a écrit :

<nothing>

Because you have answered after the signature separator, none of your
prose has been quoted (Thunderbird). Please don't do that.

--
A+

Emmanuel Delahaye

[Flash Gordon]

Re: Getc or Getchar is not reading data

Pradyut wrote:[color=blue]
> --
> Pradyut http://pradyut.tk[/color]

<snip>

Your signature (i.e. the bit I've quoted part of above) belongs *below*
the post, not above it. A number of news readers automatically remove
signatures when replying (or even when displaying) so putting the
signature above is a real pain for some people. Search for quotefix if
you want to get OE to behave a bit better.
[color=blue][color=green][color=darkred]
>> > HI,
>> > Below is my program. I compiled it through g++. Now strange thing is,
>> > getc is not reading the data instead its printing the previously read
>> > data ! Please some one let me know whats wrong.
>> >[/color][/color]
>
> This is not a good solution but a works well
>
> #include<stdio. h>
> int main()
> {
>
> int a;
> char c;
> scanf("%d",&a);
> printf("%d",a);
> fflush(stdin);[/color]

No, no, a thousand times no. We've just had a few posts saying the
fflush is defined for output streams only, so *why* are you suggesting
using it on an input stream?
[color=blue]
> c = getc(stdin);
> printf("\nThis is the charachter %c",c);
> return 0;
> }
>
> Although it's a very typical solution to such problems[/color]

<snip>

It may be typical amongst those who have learnt from bad books, but it
is not typical amongst those who have a good understanding of C.
--
Flash Gordon
Living in interesting times.
Although my email address says spam, it is real and I read it.

[M.B]

Re: Getc or Getchar is not reading data

this dosent work
you cannot do fflush on input buffers
see "man fflush" first

[pemo]

Re: Getc or Getchar is not reading data


"Keith Thompson" <kst-u@mib.org> wrote in message
news:lnr77qfja1 .fsf@nuthaus.mi b.org...[color=blue]
> "pemo" <usenetmeister@ gmail.com> writes:[color=green]
>> <mailursubbu@gm ail.com> wrote in message
>> news:1136201933 .107953.34480@g 49g2000cwa.goog legroups.com...[color=darkred]
>>> Then how can I read the Integer and the Character ?? Any solution ???
>>> Its happening consistantly on windows as well as on Linux...[/color]
>>
>> scanf(...)
>>
>> while(getchar() != '\n')
>> ;
>>
>> c = getchar();[/color]
>
> If getchar() returns EOF before returning '\n', this is an infinite loop.
>
> What is the purpose of that last line? It reads the first character
> on the line following the one your just read; was that what you
> intended?[/color]

Oops - yes, it was intended, but it shouldn't have been copied into my post.