text: // RUN: %clang_cc1 -triple %itanium_abi_triple %s -fsyntax-only -verify -pedantic
  enum e {A, 
          B = 42LL << 32,        // expected-warning {{ISO C restricts enumerator values to range of 'int'}}
        C = -4, D = 12456 };
  
  enum f { a = -2147483648, b = 2147483647 }; // ok.
  
  enum g {  // too negative
     c = -2147483649,         // expected-warning {{ISO C restricts enumerator values to range of 'int'}}
     d = 2147483647 };
  enum h { e = -2147483648, // too pos
     f = 2147483648,           // expected-warning {{ISO C restricts enumerator values to range of 'int'}}
    i = 0xFFFF0000 // expected-warning {{too large}}
  }; 
  
  // minll maxull
  enum x                      // expected-warning {{enumeration values exceed range of largest integer}}
  { y = -9223372036854775807LL-1,  // expected-warning {{ISO C restricts enumerator values to range of 'int'}}
  z = 9223372036854775808ULL };    // expected-warning {{ISO C restricts enumerator values to range of 'int'}}
  
  int test() {
    return sizeof(enum e) ;
  }
  
  enum gccForwardEnumExtension ve; // expected-warning{{ISO C forbids forward references to 'enum' types}} \
  // expected-error{{tentative definition has type 'enum gccForwardEnumExtension' that is never completed}} \
  // expected-note{{forward declaration of 'enum gccForwardEnumExtension'}}
  
  int test2(int i)
  {
    ve + i; // expected-error{{invalid operands to binary expression}}
  }
  
  // PR2020
  union u0;    // expected-note {{previous use is here}}
  enum u0 { U0A }; // expected-error {{use of 'u0' with tag type that does not match previous declaration}}
  
  
  // rdar://6095136
  extern enum some_undefined_enum ve2; // expected-warning {{ISO C forbids forward references to 'enum' types}}
  
  void test4() {
    for (; ve2;) // expected-error {{statement requires expression of scalar type}}
      ;
    (_Bool)ve2;  // expected-error {{arithmetic or pointer type is required}}
  
    for (; ;ve2) // expected-warning {{expression result unused}}
      ;
    (void)ve2;
    ve2;         // expected-warning {{expression result unused}}
  }
  
  // PR2416
  enum someenum {};  // expected-error {{use of empty enum}}
  
  // <rdar://problem/6093889>
  enum e0 { // expected-note {{previous definition is here}}
    E0 = sizeof(enum e0 { E1 }), // expected-error {{nested redefinition}}
  };
  
  // PR3173
  enum { PR3173A, PR3173B = PR3173A+50 };
  
  // PR2753
  void foo() {
    enum xpto; // expected-warning{{ISO C forbids forward references to 'enum' types}}
    enum xpto; // expected-warning{{ISO C forbids forward references to 'enum' types}}
  }
  
  // <rdar://problem/6503878>
  typedef enum { X = 0 }; // expected-warning{{typedef requires a name}}
  
  
  enum NotYetComplete { // expected-note{{definition of 'enum NotYetComplete' is not complete until the closing '}'}}
    NYC1 = sizeof(enum NotYetComplete) // expected-error{{invalid application of 'sizeof' to an incomplete type 'enum NotYetComplete'}}
  };
  
  /// PR3688
  struct s1 {
    enum e1 (*bar)(void); // expected-warning{{ISO C forbids forward references to 'enum' types}}
  };
  
  enum e1 { YES, NO };
  
  static enum e1 badfunc(struct s1 *q) {
    return q->bar();
  }
  
  
  // Make sure we don't a.k.a. anonymous enums.
  typedef enum {
    an_enumerator = 20
  } an_enum;
  char * s = (an_enum) an_enumerator; // expected-warning {{incompatible integer to pointer conversion initializing 'char *' with an expression of type 'an_enum'}}
  
  // PR4515
  enum PR4515 {PR4515a=1u,PR4515b=(PR4515a-2)/2};
  int CheckPR4515[PR4515b==0?1:-1];
  
  // PR7911
  extern enum PR7911T PR7911V; // expected-warning{{ISO C forbids forward references to 'enum' types}}
  void PR7911F() {
    switch (PR7911V); // expected-error {{statement requires expression of integer type}}
  }
  
  char test5[__has_feature(enumerator_attributes) ? 1 : -1];
  
  // PR8694
  // rdar://8707031
  void PR8694(int* e) // expected-note {{passing argument to parameter 'e' here}}
  {
  }
  
  void crash(enum E* e) // expected-warning {{declaration of 'enum E' will not be visible outside of this function}} \
                        // expected-warning {{ISO C forbids forward references to 'enum' types}}
  {
          PR8694(e); // expected-warning {{incompatible pointer types passing 'enum E *' to parameter of type 'int *'}}
  }
  
  typedef enum { NegativeShort = (short)-1 } NegativeShortEnum;
  int NegativeShortTest[NegativeShort == -1 ? 1 : -1];
  
  // PR24610
  enum Color { Red, Green, Blue }; // expected-note{{previous use is here}}
  typedef struct Color NewColor; // expected-error {{use of 'Color' with tag type that does not match previous declaration}}
  