#include <stdio.h>
#include <string.h>

int main (void)
{
    int retval;
    retval = rename("tst/tempfile.tmp", "tst/notepad.xxx");

    if (retval != 0) {
        fprintf(stderr, "%s\n", strerror(retval));
        return retval;
    }
    return 0;
}