1  /* { dg-do preprocess } */
       2  /* { dg-options "-std=c11 -pedantic" { target c } } */
       3  /* { dg-options "-std=c++11 -pedantic" { target c++ } } */
       4  
       5  \u00A8 /* { dg-error "is not valid in an identifier" "" { target c++ } } */
       6  
       7  B\u0300
       8  
       9  \u0300 /* { dg-error "not valid at the start of an identifier" } */
      10  
      11  A\u0300 /* { dg-warning "not in NFC" } */
      12  
      13  \U00010000
      14  \U0001FFFD	/* { dg-error "is not valid in an identifier" "" { target c++ } } */
      15  \U000E1234	/* { dg-error "is not valid in an identifier" "" { target c++ } } */