/**
 * This is your typical header comment
 */
 int foo(int bar)
 {
    int idx;
    int res = 0;     // trailing comment
                   // that spans two lines
    for (idx = 1; idx < bar; idx++)
       /* comment in virtual braces */
       res += idx;

    res *= idx;       // some comment

                      // almost continued, but a NL in between

// col1 comment in level 1
   return(res);
}

   // col1 comment in level 0

