fprintf in a double while loop

This is a discussion on fprintf in a double while loop within the C Programming forums, part of the General Programming Boards category; Hello everybody, I'm new here, 27, French and have already a question for you! I have a double "while" loop, ...

  1. #1
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    fprintf in a double while loop

    Hello everybody,

    I'm new here, 27, French and have already a question for you!

    I have a double "while" loop, while(k)(while(i)()).

    In the "i" one, I use "fprintf" to write into a file "out_x".
    In the "k" one, I would like to change automatically the name of the file (more precisely the "x") I will write in, before the next entry into the loop "i" again.

    In summary I would like to write into "kmax" files, named "out_k" up "out_kmax" automatically.


    Do you have any idea how I can do this?

    Thanks in advance,

  2. #2
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    use sprintf to generate a string that you want the file to be named on each iteration, and call fopen with this string in write mode each round of the loop. Make sure you close the files after each iteration.

  3. #3
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    I'll try this tonight, thanks a lot for your fast answer!

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