modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/execute/enum-1.c (about)

     1  typedef enum
     2  {
     3    END = -1,
     4    EMPTY = (1 << 8 ) ,
     5    BACKREF,
     6    BEGLINE,
     7    ENDLINE,
     8    BEGWORD,
     9    ENDWORD,
    10    LIMWORD,
    11    NOTLIMWORD,
    12    QMARK,
    13    STAR,
    14    PLUS,
    15    REPMN,
    16    CAT,
    17    OR,
    18    ORTOP,
    19    LPAREN,
    20    RPAREN,
    21    CSET
    22  } token;
    23  
    24  static token tok;
    25  
    26  static int
    27  atom ()
    28  {
    29    if ((tok >= 0 && tok < (1 << 8 ) ) || tok >= CSET || tok == BACKREF
    30        || tok == BEGLINE || tok == ENDLINE || tok == BEGWORD
    31        || tok == ENDWORD || tok == LIMWORD || tok == NOTLIMWORD)
    32      return 1;
    33    else
    34      return 0;
    35  }
    36  
    37  main ()
    38  {
    39    tok = 0;
    40    if (atom () != 1)
    41      abort ();
    42    exit (0);
    43  }