1// RUN: %clang_cc1 -fsyntax-only -verify -triple x86_64-unknown-unknown %s
2
3int complete_array_from_init[] = { 1, 2, [10] = 5, 1, 2, [5] = 2, 6 };
4
5int complete_array_from_init_check[((sizeof(complete_array_from_init) / sizeof(int)) == 13)? 1 : -1];
6
7int iarray[10] = {
8  [0] = 1,
9  [1 ... 5] = 2,
10  [ 6 ... 6 ] = 3,
11  [ 8 ... 7 ] = 4, // expected-error{{array designator range [8, 7] is empty}}
12  [10] = 5,
13  [-1] = 6 // expected-error{{array designator value '-1' is negative}}
14};
15
16int iarray2[10] = {
17  [10] = 1, // expected-error{{array designator index (10) exceeds array bounds (10)}}
18};
19
20int iarray3[10] = {
21  [3] 2, // expected-warning{{use of GNU 'missing =' extension in designator}}
22  [5 ... 12] = 2 // expected-error{{array designator index (12) exceeds array bounds (10)}}
23};
24
25struct point {
26  double x;
27  double y;
28};
29
30struct point p1 = {
31  .y = 1.0,
32  x: 2.0, // expected-warning{{}}
33  .a = 4.0, // expected-error{{field designator 'a' does not refer to any field in type 'struct point'}}
34};
35
36struct point p2 = {
37  [1] = 1.0 // expected-error{{array designator cannot initialize non-array type}}
38};
39
40struct point array[10] = {
41  [0].x = 1.0,
42  [1].y = 2.0,
43  [2].z = 3.0, // expected-error{{field designator 'z' does not refer to any field in type 'struct point'}}
44};
45
46struct point array2[10] = {
47  [10].x = 2.0, // expected-error{{array designator index (10) exceeds array bounds (10)}}
48  [4 ... 5].y = 2.0,
49  [4 ... 6] = { .x = 3, .y = 4.0 }
50};
51
52struct point array3[10] = {
53  .x = 5 // expected-error{{field designator cannot initialize a non-struct, non-union type}}
54};
55
56struct rect {
57  struct point top_left;
58  struct point bottom_right;
59};
60
61struct rect window = { .top_left.x = 1.0 };
62
63struct rect windows[] = {
64  [2].top_left = { 1.0, 2.0 },
65  [4].bottom_right = { .y = 1.0 },
66  { { .y = 7.0, .x = 8.0 }, { .x = 5.0 } },
67  [3] = { .top_left = { 1.1, 2.2 }, .bottom_right = { .y = 1.1 } }
68};
69
70int windows_size[((sizeof(windows) / sizeof(struct rect)) == 6)? 1 : -1];
71
72struct rect windows_bad[3] = {
73  [2].top_left = { { .x = 1.1 } }, // expected-error{{designator in initializer for scalar type}}
74  [1].top_left = { .x = 1.1 }
75};
76
77struct gui {
78  struct rect windows[10];
79};
80
81struct gui gui[] = {
82  [5].windows[3].top_left.x = { 7.0 } // expected-warning{{braces around scalar initializer}}
83};
84
85struct translator {
86  struct wonky { int * ptr; } wonky ;
87  struct rect window;
88  struct point offset;
89} tran = {
90  .window = { .top_left = { 1.0, 2.0 } },
91  { .x = 5.0, .y = 6.0 },
92  .wonky = { 0 }
93};
94
95int anint;
96struct {int x,*y;} z[] = {[0].x = 2, &z[0].x};
97
98struct outer { struct inner { int x, *y; } in, *inp; } zz[] = {
99  [0].in.x = 2, &zz[0].in.x, &zz[0].in,
100  0, &anint, &zz[1].in,
101  [3].in = { .y = &anint, .x = 17 },
102  [7].in.y = &anint, &zz[0].in,
103  [4].in.y = &anint, [5].in.x = 12
104};
105
106int zz_sizecheck[sizeof(zz) / sizeof(struct outer) == 8? 1 : -1 ];
107
108struct disklabel_ops {
109  struct {} type;
110  int labelsize;
111};
112
113struct disklabel_ops disklabel64_ops = {
114  .labelsize = sizeof(struct disklabel_ops)
115};
116
117// PR clang/3378
118int bitwidth[] = { [(long long int)1] = 5, [(short int)2] = 2 };
119int a[]= { [sizeof(int)] = 0 };
120int a2[]= { [0 ... sizeof(int)] = 0 };
121
122// Test warnings about initializers overriding previous initializers
123struct X {
124  int a, b, c;
125};
126
127int counter = 0;
128int get8() { ++counter; return 8; }
129
130void test() {
131  struct X xs[] = {
132    [0] = (struct X){1, 2}, // expected-note{{previous initialization is here}}
133    [0].c = 3,  // expected-warning{{subobject initialization overrides initialization of other fields within its enclosing subobject}}
134    (struct X) {4, 5, 6}, // expected-note{{previous initialization is here}}
135    [1].b = get8(), // expected-warning{{subobject initialization overrides initialization of other fields within its enclosing subobject}}
136    [0].b = 8
137  };
138}
139
140// FIXME: How do we test that this initializes the long properly?
141union { char c; long l; } u1 = { .l = 0xFFFF };
142
143extern float global_float;
144
145struct XX { int a, *b; };
146struct XY { int before; struct XX xx, *xp; float* after; } xy[] = {
147  0, 0, &xy[0].xx.a, &xy[0].xx, &global_float,
148  [1].xx = 0, &xy[1].xx.a, &xy[1].xx, &global_float,
149  0, // expected-note{{previous initialization is here}}
150  0, // expected-note{{previous initialization is here}}
151  [2].before = 0, // expected-warning{{initializer overrides prior initialization of this subobject}}
152  0, // expected-warning{{initializer overrides prior initialization of this subobject}}
153  &xy[2].xx.a, &xy[2].xx, &global_float
154};
155
156// PR3519
157struct foo {
158  int arr[10];
159};
160
161struct foo Y[10] = {
162  [1] .arr [1] = 2,
163  [4] .arr [2] = 4
164};
165
166struct bar {
167  struct foo f;
168  float *arr[10];
169};
170
171extern float f;
172struct bar saloon = {
173  .f.arr[3] = 1,
174  .arr = { &f }
175};
176
177typedef unsigned char u_char;
178typedef unsigned short u_short;
179
180union wibble {
181        u_char  arr1[6];
182        u_short arr2[3];
183};
184
185const union wibble wobble = { .arr2[0] = 0xffff,
186                              .arr2[1] = 0xffff,
187                              .arr2[2] = 0xffff };
188
189const union wibble wobble2 = { .arr2 = {4, 5, 6}, 7 }; // expected-warning{{excess elements in union initializer}}
190
191// PR3778
192struct s {
193    union { int i; };
194};
195struct s si = {
196    { .i = 1 }
197};
198
199double d0;
200char c0;
201float f0;
202int i0;
203
204struct Enigma {
205  union {
206    struct {
207      struct {
208        double *double_ptr;
209        char *string;
210      };
211      float *float_ptr;
212    };
213    int *int_ptr;
214  };
215  char *string2;
216};
217
218struct Enigma enigma = {
219  .double_ptr = &d0, &c0,
220  &f0, // expected-note{{previous}}
221  &c0,
222  .float_ptr = &f0 // expected-warning{{overrides}}
223};
224
225
226/// PR4073
227/// Should use evaluate to fold aggressively and emit a warning if not an ice.
228extern int crazy_x;
229
230int crazy_Y[] = {
231  [ 0 ? crazy_x : 4] = 1
232};
233
234// PR5843
235struct expr {
236  int nargs;
237  union {
238    unsigned long int num;
239    struct expr *args[3];
240  } val;
241};
242
243struct expr expr0 = {
244  .nargs = 2,
245  .val = {
246    .args = {
247      [0] = (struct expr *)0,
248      [1] = (struct expr *)0
249    }
250  }
251};
252
253// PR6955
254
255struct ds {
256  struct {
257    struct {
258      unsigned int a;
259    };
260    unsigned int b;
261    struct {
262      unsigned int c;
263    };
264  };
265};
266
267// C1X lookup-based anonymous member init cases
268struct ds ds0 = {
269  { {
270      .a = 1 // expected-note{{previous initialization is here}}
271    } },
272  .a = 2, // expected-warning{{initializer overrides prior initialization of this subobject}}
273  .b = 3
274};
275struct ds ds1 = { .c = 0 };
276struct ds ds2 = { { {
277    .a = 0,
278    .b = 1 // expected-error{{field designator 'b' does not refer to any field}}
279} } };
280