fscanf %s or %d integer input space char stop question...

This is a discussion on fscanf %s or %d integer input space char stop question... within the C Programming forums, part of the General Programming Boards category; i want fscanf to read an integer but to stop when space char appears.. Code: fscanf(room,%10s%,&id); i read that %s ...

  1. #1
    Banned
    Join Date
    Oct 2008
    Posts
    1,535

    fscanf %s or %d integer input space char stop question...

    i want fscanf to read an integer
    but to stop when space char appears..

    Code:
    fscanf(room,%10s%,&id);
    i read that %s means stop when there is whitespace

    but on the scanf command i knew
    that %s ment read a string

    how to read the in put as an integer and stop when there is
    a space
    ??

  2. #2
    Banned
    Join Date
    Oct 2008
    Posts
    1,535
    and if ill write %d then it will get it as integer
    but wont stop at space char
    how to read the in put as an integer and stop when there is
    a space
    ??

  3. #3
    Kernel hacker
    Join Date
    Jul 2007
    Location
    Farncombe, Surrey, England
    Posts
    15,677
    I'm sure it will stop at a space - are you sayiong that if you enter 123 456 to scanf, you get the integer value 123456? Change your compiler!

    --
    Mats
    Compilers can produce warnings - make the compiler programmers happy: Use them!
    Please don't PM me for help - and no, I don't do help over instant messengers.

  4. #4
    Banned
    Join Date
    Oct 2008
    Posts
    1,535
    why it stops at space with %d

    the manual says %s means read till you get white space

    there is no such thing for %d

    ??

  5. #5
    C++ Witch laserlight's Avatar
    Join Date
    Oct 2003
    Location
    Singapore
    Posts
    23,827
    Quote Originally Posted by transgalactic2
    why it stops at space with %d

    the manual says %s means read till you get white space

    there is no such thing for %d
    Whitespace is not considered part of a number.
    Quote Originally Posted by Bjarne Stroustrup (2000-10-14)
    I get maybe two dozen requests for help with some sort of programming or design problem every day. Most have more sense than to send me hundreds of lines of code. If they do, I ask them to find the smallest example that exhibits the problem and send me that. Mostly, they then find the error themselves. "Finding the smallest program that demonstrates the error" is a powerful debugging tool.
    Look up a C++ Reference and learn How To Ask Questions The Smart Way

  6. #6
    Banned
    Join Date
    Oct 2008
    Posts
    1,535
    thanks

    %d stops at white space too

Popular pages Recent additions subscribe to a feed

Similar Threads

  1. memory issue
    By t014y in forum C Programming
    Replies: 2
    Last Post: 02-20-2009, 11:37 PM
  2. Link List math
    By t014y in forum C Programming
    Replies: 17
    Last Post: 02-20-2009, 05:55 PM
  3. load gif into program
    By willc0de4food in forum Windows Programming
    Replies: 14
    Last Post: 01-11-2006, 09:43 AM
  4. How do i un-SHA1 hash something..
    By willc0de4food in forum C Programming
    Replies: 4
    Last Post: 09-14-2005, 05:59 AM
  5. File input question
    By Beast() in forum C Programming
    Replies: 16
    Last Post: 07-09-2004, 03:23 PM

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21