How to dynamically change filename while writing in a loop?
<p>I would like to do something like this: In a loop, first iteration write some content into a file named file0.txt, second iteration file1.txt and so on, just increase the number.</p>

<pre><code>FILE *img;
int k = 0;
while (true)
{
            // here we get some data into variable data

    file = fopen("file.txt", "wb");
    fwrite (data, 1, strlen(data) , file);
    fclose(file );

    k++;

            // here we check some condition so we can return from the loop
}
</code></pre>
