Thread: Re-writing the same line

  1. #1
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    Re-writing the same line

    I've written a small file server/client for *nix and I'm just clearing the rough edges:
    The program reports the percentage of the file that has been transfered but it writes a new line every time it refreshes the value like this:
    "11%
    22%
    34%
    ..."
    My doubt is how do I make it simply "update" the value without creating an new line (I know curses would probably do it,even though I've never used it) but this is a very tiny program and it would get "bloated" if I had to include the whole curses library, plus I only want to use that particular feature.

    Any suggestions?

    Thanks!

  2. #2
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    printing backspaces ( char 9 ) might help.
    Kurt

  3. #3
    and the hat of int overfl Salem's Avatar
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    printf("%02d%%\b\b\b", percentage);
    fflush( stdout );
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.

  4. #4
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    Doh! Didn't know you could "print" backspaces...
    Silly me, thanks for the help!

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