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Join Date: Oct 2009

Posts: 2

Reputation: luoyangke is an unknown quantity at this point

Solved Threads: 0

luoyangke

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Newbie Poster

\n

Oct 25th, 2009

who can tell me what the use of "\n" is? and what the difference between

 Help with Code Tags 
 C Syntax (Toggle Plain Text) 
scanf("%d",&j);
scanf("%d",&j);

and

 Help with Code Tags 
 C Syntax (Toggle Plain Text) 
scanf("%d\n",&j)
scanf("%d\n",&j)

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Join Date: Sep 2008

Posts: 382

Reputation: tomtetlaw is an unknown quantity at this point

Solved Threads: 4

tomtetlaw

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Posting Whiz

-1

Oct 25th, 2009

In C, the '\n' character is a special type of character called a control character, these are characters that do something other then just display themselves, here is all the ones that I know:

\n = newline
\t = tab
\a = This one rocks, it makes the computer make a beeping sound

The difference between those follows:

Say you called the first one, then the user entered 'hello', j would now be 'hello', if you called the second one, j would be 'hello\n' and whenever you printed out j after the second one, it would print out hello followed by a newline

Last edited by tomtetlaw; Oct 25th, 2009 at 6:54 am.

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Join Date: Aug 2005

Posts: 15,662

Reputation: Ancient Dragon has a reputation beyond repute

Solved Threads: 1501

Ancient Dragon Ancient Dragon is offline

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Still Learning

-7

Oct 25th, 2009

Here is a complete list

Don't PM me with questions -- you might get a nasty PM in response. If you have a question then post it in one of the forums.

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Join Date: Oct 2009

Posts: 67

Reputation: Iam3R is an unknown quantity at this point

Solved Threads: 3

Iam3R

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Junior Poster in Training

-1

Oct 25th, 2009

if i use this in a program its keep on taking the return key
the program not getting terminated, whats the problem?

 Help with Code Tags 
 C Syntax (Toggle Plain Text) 
scanf("%d\n",&j)
scanf("%d\n",&j)

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Join Date: Oct 2008

Posts: 2,721

Reputation: adatapost has much to be proud of

Solved Threads: 501

adatapost

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Posting Maven

Oct 25th, 2009

It discards unwanted white space.
A white-space character in the control string causes scanf() to skip over one or more leading white-space characters in the input stream.

 Help with Code Tags 
 C Syntax (Toggle Plain Text) 
int main()
{
 char ch,ch1;
 
 printf("Enter two chars : ");
 scanf("%c\n%c",&ch,&ch1);
 printf("\n%c\n%c",ch,ch1);
 return 0;
}
int main()
{
 char ch,ch1;

 printf("Enter two chars : ");
 scanf("%c\n%c",&ch,&ch1);
 printf("\n%c\n%c",ch,ch1);
 return 0;
}

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Join Date: Oct 2009

Posts: 2

Reputation: luoyangke is an unknown quantity at this point

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luoyangke

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Newbie Poster

thank you

Oct 25th, 2009

thank you for the anwser

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Join Date: Apr 2004

Posts: 4,461

Reputation: Dave Sinkula has a brilliant future

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Dave Sinkula Dave Sinkula is offline

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long time no c

Oct 25th, 2009

http://c-faq.com/stdio/scanfhang.html

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