1  /* Test -Wchar-subscripts.  */
       2  /* Origin: Joseph Myers <joseph@codesourcery.com> */
       3  /* { dg-do compile } */
       4  /* { dg-options "-Wchar-subscripts" } */
       5  
       6  extern int a[];
       7  int *p;
       8  char c;
       9  signed char sc;
      10  unsigned char uc;
      11  
      12  void
      13  f (void)
      14  {
      15    a[sc];
      16    a[uc];
      17    sc[a];
      18    uc[a];
      19    p[sc];
      20    p[uc];
      21    sc[p];
      22    uc[p];
      23    a[c]; /* { dg-warning "array subscript has type 'char'" } */
      24    p[c]; /* { dg-warning "array subscript has type 'char'" } */
      25    /* -Wchar-subscripts does not warn if the char is not syntactically
      26        the subscript.  */
      27    c[a];
      28    c[p];
      29  }