1  /* { dg-do preprocess } */
       2  /* { dg-options "-std=c99 -pedantic" } */
       3  
       4  \u00AA
       5  \u00AB /* { dg-error "not valid in an identifier" } */
       6  \u00B6 /* { dg-error "not valid in an identifier" } */
       7  \u00BA
       8  \u00C0
       9  \u00D6
      10  \u0384 /* { dg-error "not valid in an identifier" } */
      11  
      12  \u0669 /* { dg-error "not valid at the start of an identifier" } */
      13  A\u0669
      14  0\u00BA
      15  0\u0669
      16  \u0E59 /* { dg-error "not valid at the start of an identifier" } */
      17  A\u0E59