1// RUN: %clang_cc1 %s -fsyntax-only -Wprivate-extern -verify
2
3// PR3310
4struct a x1; // expected-note 2{{forward declaration of 'struct a'}}
5static struct a x2; // expected-warning{{tentative definition of variable with internal linkage has incomplete non-array type 'struct a'}}
6struct a x3[10]; // expected-error{{array has incomplete element type 'struct a'}}
7struct a {int x;};
8static struct a x2_okay;
9struct a x3_okay[10];
10struct b x4; // expected-error{{tentative definition has type 'struct b' that is never completed}} \
11            // expected-note{{forward declaration of 'struct b'}}
12
13const int a [1] = {1};
14extern const int a[];
15
16extern const int b[];
17const int b [1] = {1};
18
19extern const int c[] = {1}; // expected-warning{{'extern' variable has an initializer}}
20const int c[];
21
22int i1 = 1; // expected-note {{previous definition is here}}
23int i1 = 2; // expected-error {{redefinition of 'i1'}}
24int i1;
25int i1;
26extern int i5; // expected-note {{previous definition is here}}
27static int i5; // expected-error{{static declaration of 'i5' follows non-static declaration}}
28
29static int i2 = 5; // expected-note 1 {{previous definition is here}}
30int i2 = 3; // expected-error{{non-static declaration of 'i2' follows static declaration}}
31
32static int i3 = 5;
33extern int i3;
34
35// rdar://7703982
36__private_extern__ int pExtern; // expected-warning {{use of __private_extern__ on a declaration may not produce external symbol private to the linkage unit and is deprecated}} \
37// expected-note {{use __attribute__((visibility("hidden"))) attribute instead}}
38int pExtern = 0;
39
40int i4;
41int i4;
42extern int i4;
43
44int (*pToArray)[];
45int (*pToArray)[8];
46
47int redef[10];
48int redef[];  // expected-note {{previous definition is here}}
49int redef[11]; // expected-error{{redefinition of 'redef'}}
50
51void func() {
52  extern int i6; // expected-note {{previous definition is here}}
53  static int i6; // expected-error{{static declaration of 'i6' follows non-static declaration}}
54}
55
56void func2(void)
57{
58  extern double *p;
59  extern double *p;
60}
61
62// <rdar://problem/6808352>
63static int a0[];
64static int b0;
65
66static int a0[] = { 4 };
67static int b0 = 5;
68