C fscanf / feof question.

Claus · 02-02-2004, 09:25 PM

Hi

I always have the same doubt, and I always forget to ask....

With this piece of code:

Code:

 if (!(f = fopen (filename, "r")))
                return;
                                                                                                                             
        while (!feof (f)) {
                fscanf (f, "%s", data);
                printf("%s\n", data);
        }

I always get the last line of the file printed twice... Why is that happening???

What is the correct way to loop in a file?

Thank you.

Berng · 02-02-2004, 11:55 PM

Basically,
you could try change the code
from
fscanf (f, "%s", data);
printf("%s\n", data);
to
if(fscanf (f, "%s", data)==1)
printf("%s\n", data);
to be sure that you succesfully read your variable from file before print it

Best Regards,
Oleg.