1 // RUN: %clang_cc1 %s -fsyntax-only -Wprivate-extern -verify
2
3 // PR3310
4 struct a x1; // expected-note 2{{forward declaration of 'struct a'}}
5 static struct a x2; // expected-warning{{tentative definition of variable with internal linkage has incomplete non-array type 'struct a'}}
6 struct a x3[10]; // expected-error{{array has incomplete element type 'struct a'}}
7 struct a {int x;};
8 static struct a x2_okay;
9 struct a x3_okay[10];
10 struct b x4; // expected-error{{tentative definition has type 'struct b' that is never completed}} \
11 // expected-note{{forward declaration of 'struct b'}}
12
13 const int a [1] = {1};
14 extern const int a[];
15
16 extern const int b[];
17 const int b [1] = {1};
18
19 extern const int c[] = {1}; // expected-warning{{'extern' variable has an initializer}}
20 const int c[];
21
22 int i1 = 1; // expected-note {{previous definition is here}}
23 int i1 = 2; // expected-error {{redefinition of 'i1'}}
24 int i1;
25 int i1;
26 extern int i5; // expected-note {{previous declaration is here}}
27 static int i5; // expected-error{{static declaration of 'i5' follows non-static declaration}}
28
29 static int i2 = 5; // expected-note 1 {{previous definition is here}}
30 int i2 = 3; // expected-error{{non-static declaration of 'i2' follows static declaration}}
31
32 static int i3 = 5;
33 extern int i3;
34
35 __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}} \
36 // expected-note {{use __attribute__((visibility("hidden"))) attribute instead}}
37 int pExtern = 0;
38
39 int i4;
40 int i4;
41 extern int i4;
42
43 int (*pToArray)[];
44 int (*pToArray)[8];
45
46 int redef[10];
47 int redef[]; // expected-note {{previous definition is here}}
48 int redef[11]; // expected-error{{redefinition of 'redef'}}
49
func(void)50 void func(void) {
51 extern int i6; // expected-note {{previous declaration is here}}
52 static int i6; // expected-error{{static declaration of 'i6' follows non-static declaration}}
53 }
54
func2(void)55 void func2(void)
56 {
57 extern double *p;
58 extern double *p;
59 }
60
61 static int a0[];
62 static int b0;
63
64 static int a0[] = { 4 };
65 static int b0 = 5;
66