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File Line Re-arranging program

Discussion in 'C' started by Frusciante, Jul 4, 2007.

  1. Frusciante

    Frusciante New Member

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    Hi!
    I'm writing a small C program to post process a huge txt file produced by a CFD software.

    The CFD creates a "from.txt" file, in which every line contains many parameters calculated by it.
    I need to copy the lines that contain the information i need to another "to.txt" files.

    The problem is that I donĀ“t know how to go thru the lines of the from.txt.
    Once i know how to go thru them it wouldn't be that hard to write the rest of the program.

    I working on something like...

    fp=fopen(filename,"r");
    while(c == getchar());
    if (c == \n);

    ... but i have no idea how to go on...

    I`m a newbie in this world... hope learn a lot from you all!
     
  2. shabbir

    shabbir Administrator Staff Member

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    c == getchar() will go through the content of the file character by character.
     
  3. DaWei

    DaWei New Member

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    Look up fgets.
     

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