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I meant fgets, sorry. My plan is this: I got a lot of files in a directory and some of the file names have mistakes(like a character should be lower case). I want the program to show me the name of...

Hi,
I want to write a programm that does this:
1.Find the first file in the directory
2.print its name into a input field
3.rename the file

Then the same procedure happens with the second...

Ok, thanks now I understood it.

But if I use scanf it can always happen that there will be chars left in stdin. Can could I prevent this with scanf or do I have to use another function?

how would you flush stdin?

while ((ch = getchar()) != '\n' && ch != EOF);

I took this loop from the faq on this forum, so I guess it´s correct... So do you know a function that inserts chars into stdin?

void flush_stdin(void)
{
char ch = 0;

while ((ch = getchar()) != '\n' && ch != EOF);
}

This code would always work if you could insert a char into stdin before the loop. Is this possible...