array-init.c revision 3b427b3ba518f7a7293458c2d3d92eebd8458d87 
1// RUN: clang -fsyntax-only -verify -pedantic %s
2
3extern int foof() = 1; // expected-error{{illegal initializer (only variables can be initialized)}}
4
5static int x, y, z;
6
7static int ary[] = { x, y, z }; // expected-error{{initializer element is not constant}}
8int ary2[] = { x, y, z }; // expected-error{{initializer element is not constant}}
9
10extern int fileScopeExtern[3] = { 1, 3, 5 }; // expected-warning{{'extern' variable has an initializer}}
11
12static int ary3[] = { 1, "abc", 3, 4 }; // expected-warning{{incompatible types assigning 'char *' to 'int'}}
13
14void func() {
15  int x = 1;
16
17  typedef int TInt = 1; // expected-error{{illegal initializer (only variables can be initialized)}}
18
19  int xComputeSize[] = { 1, 3, 5 };
20
21  int x3[x] = { 1, 2 }; // expected-error{{variable-sized object may not be initialized}}
22
23  int x4 = { 1, 2 }; // expected-warning{{braces around scalar initializer}} expected-warning{{excess elements in array initializer}}
24
25  int y[4][3] = {
26    { 1, 3, 5 },
27    { 2, 4, 6 },
28    { 3, 5, 7 },
29  };
30
31  int y2[4][3] = {
32    1, 3, 5, 2, 4, 6, 3, 5, 7
33  };
34
35  int y3[4][3] = {
36    { 1, 3, 5 },
37    { 2, 4, 6 },
38    { 3, 5, 7 },
39    { 4, 6, 8 },
40    { 5 }, // expected-warning{{excess elements in array initializer}}
41  };
42
43  struct threeElements {
44    int a,b,c;
45  } z = { 1 };
46
47  struct threeElements *p = 7; // expected-warning{{incompatible types assigning 'int' to 'struct threeElements *'}}
48
49  extern int blockScopeExtern[3] = { 1, 3, 5 }; // expected-error{{'extern' variable cannot have an initializer}}
50
51  static int x2[3] = { 1.0, "abc" , 5.8 }; // expected-warning{{incompatible types assigning 'char *' to 'int'}}
52}
53
54void test() {
55  int y1[3] = {
56    { 1, 2, 3 } // expected-warning{{braces around scalar initializer}} expected-warning{{excess elements in array initializer}}
57  };
58  int y3[4][3] = {
59    { 1, 3, 5 },
60    { 2, 4, 6 },
61    { 3, 5, 7 },
62    { 4, 6, 8 },
63    {  }, // expected-warning{{use of GNU empty initializer extension}} expected-warning{{excess elements in array initializer}}
64  };
65  int y4[4][3] = {
66    { 1, 3, 5, 2 }, // expected-warning{{excess elements in array initializer}}
67    { 4, 6 },
68    { 3, 5, 7 },
69    { 4, 6, 8 }, // expected-warning{{excess elements in array initializer}}
70  };
71}
72
73void allLegalAndSynonymous() {
74  short q[4][3][2] = {
75    { 1 },
76    { 2, 3 },
77    { 4, 5, 6 }
78  };
79  short q2[4][3][2] = {
80    { 1, 0, 0, 0, 0, 0 },
81    { 2, 3, 0, 0, 0, 0 },
82    { 4, 5, 6 }
83  };
84  short q3[4][3][2] = {
85    {
86      { 1 },
87    },
88    {
89      { 2, 3 },
90    },
91    {
92      { 4, 5 },
93      { 6 },
94    },
95  };
96}
97
98void legal() {
99  short q[][3][2] = {
100    { 1 },
101    { 2, 3 },
102    { 4, 5, 6 }
103  };
104}
105
106void illegal() {
107  short q2[4][][2] = { // expected-error{{array has incomplete element type 'short [][2]'}}
108    { 1, 0, 0, 0, 0, 0 },
109    { 2, 3, 0, 0, 0, 0 },
110    { 4, 5, 6 }
111  };
112  short q3[4][3][] = { // expected-error{{array has incomplete element type 'short []'}}
113    {
114      { 1 },
115    },
116    {
117      { 2, 3 },
118    },
119    {
120      { 4, 5 },
121      { 6 },
122    },
123  };
124  // FIXME: the following two errors are redundant
125  int a[][] = { 1, 2 }; // expected-error{{array has incomplete element type 'int []'}} expected-error{{variable has incomplete type 'int []'}}
126}
127
128typedef int AryT[];
129
130void testTypedef()
131{
132  AryT a = { 1, 2 }, b = { 3, 4, 5 };
133}
134
135