1  /* Test C2x digit separators.  Test token pasting avoided for preprocessed
       2     output.  */
       3  /* { dg-do compile } */
       4  /* { dg-options "-std=c2x -save-temps" } */
       5  
       6  #define ZERO 0
       7  
       8  int
       9  f (void)
      10  {
      11    return ZERO'0'0; /* { dg-error "expected" } */
      12  }