text: // RUN: %clang_cc1 %s -fsyntax-only -verify -std=c11 -Wno-unused-value
  
  enum e0; // expected-note{{forward declaration of 'enum e0'}}
  
  struct a {
    int a : -1; // expected-error{{bit-field 'a' has negative width}}
  
    // rdar://6081627
    int b : 33; // expected-error{{width of bit-field 'b' (33 bits) exceeds width of its type (32 bits)}}
  
    int c : (1 + 0.25); // expected-error{{expression is not an integer constant expression}}
    int d : (int)(1 + 0.25); 
  
    // rdar://6138816
    int e : 0;  // expected-error {{bit-field 'e' has zero width}}
  
    float xx : 4;  // expected-error {{bit-field 'xx' has non-integral type}}
  
    // PR3607
    enum e0 f : 1; // expected-error {{field has incomplete type 'enum e0'}}
    
    int g : (_Bool)1;
    
    // PR4017  
    char : 10;      // expected-error {{width of anonymous bit-field (10 bits) exceeds width of its type (8 bits)}}
    unsigned : -2;  // expected-error {{anonymous bit-field has negative width (-2)}}
    float : 12;     // expected-error {{anonymous bit-field has non-integral type 'float'}}
  
    _Bool : 2;   // expected-error {{width of anonymous bit-field (2 bits) exceeds width of its type (1 bit)}}
    _Bool h : 5; // expected-error {{width of bit-field 'h' (5 bits) exceeds width of its type (1 bit)}}
  };
  
  struct b {unsigned x : 2;} x;
  __typeof__(x.x+1) y;
  int y;
  
  struct {unsigned x : 2;} x2;
  __typeof__((x.x+=1)+1) y;
  __typeof__((0,x.x)+1) y;
  __typeof__(x.x<<1) y;
  int y;
  
  struct PR8025 {
    double : 2; // expected-error{{anonymous bit-field has non-integral type 'double'}}
  };
  
  struct Test4 {
    unsigned bitX : 4;
    unsigned bitY : 4;
    unsigned var;
  };
  void test4(struct Test4 *t) {
    (void) sizeof(t->bitX); // expected-error {{invalid application of 'sizeof' to bit-field}}
    (void) sizeof((t->bitY)); // expected-error {{invalid application of 'sizeof' to bit-field}}
    (void) sizeof(t->bitX = 4); // not a bitfield designator in C
    (void) sizeof(t->bitX += 4); // not a bitfield designator in C
    (void) sizeof((void) 0, t->bitX); // not a bitfield designator in C
    (void) sizeof(t->var ? t->bitX : t->bitY); // not a bitfield designator in C
    (void) sizeof(t->var ? t->bitX : t->bitX); // not a bitfield designator in C
  }
  
  typedef unsigned Unsigned;
  typedef signed Signed;
  
  struct Test5 { unsigned n : 2; } t5;
  // Bitfield is unsigned
  struct Test5 sometest5 = {-1}; // expected-warning {{implicit truncation from 'int' to bitfield changes value from -1 to 3}}
  typedef __typeof__(+t5.n) Signed;  // ... but promotes to signed.
  
  typedef __typeof__(t5.n + 0) Signed; // Arithmetic promotes.
  
  typedef __typeof__(+(t5.n = 0)) Signed;  // FIXME: Assignment should not; the result
  typedef __typeof__(+(t5.n += 0)) Signed; // is a non-bit-field lvalue of type unsigned.
  typedef __typeof__(+(t5.n *= 0)) Signed;
  
  typedef __typeof__(+(++t5.n)) Signed; // FIXME: Increment is equivalent to compound-assignment.
  typedef __typeof__(+(--t5.n)) Signed; // This should not promote to signed.
  
  typedef __typeof__(+(t5.n++)) Unsigned; // Post-increment is underspecified, but seems to
  typedef __typeof__(+(t5.n--)) Unsigned; // also act like compound-assignment.
  
  struct Test6 {
    : 0.0; // expected-error{{type name requires a specifier or qualifier}}
  };
  