private-extern.c revision ee3899e1cabcbf70d9a316b33f9b79bf3189bd01 
1// RUN: clang-cc -verify -fsyntax-only %s
2
3static int g0; // expected-note{{previous definition}}
4int g0; // expected-error{{non-static declaration of 'g0' follows static declaration}}
5
6static int g1;
7extern int g1;
8
9static int g2;
10__private_extern__ int g2;
11
12int g3; // expected-note{{previous definition}}
13static int g3; // expected-error{{static declaration of 'g3' follows non-static declaration}}
14
15extern int g4; // expected-note{{previous definition}}
16static int g4; // expected-error{{static declaration of 'g4' follows non-static declaration}}
17
18__private_extern__ int g5; // expected-note{{previous definition}}
19static int g5; // expected-error{{static declaration of 'g5' follows non-static declaration}}
20
21void f0() {
22  // FIXME: Diagnose this?
23  int g6;
24  extern int g6;
25}
26
27void f1() {
28  // FIXME: Diagnose this?
29  int g7;
30  __private_extern__ int g7;
31}
32
33void f2() {
34  extern int g8; // expected-note{{previous definition}}
35  // FIXME: Improve this diagnostic.
36  int g8; // expected-error{{redefinition of 'g8'}}
37}
38
39void f3() {
40  __private_extern__ int g9; // expected-note{{previous definition}}
41  // FIXME: Improve this diagnostic.
42  int g9; // expected-error{{redefinition of 'g9'}}
43}
44
45void f4() {
46  extern int g10;
47  extern int g10;
48}
49
50void f5() {
51  __private_extern__ int g11;
52  __private_extern__ int g11;
53}
54
55void f6() {
56  // FIXME: Diagnose
57  extern int g12;
58  __private_extern__ int g12;
59}
60
61void f7() {
62  // FIXME: Diagnose
63  __private_extern__ int g13;
64  extern int g13;
65}
66
67struct s0;
68void f8() {
69  extern struct s0 g14;
70  __private_extern__ struct s0 g14;
71}
72struct s0 { int x; };
73
74void f9() {
75  extern int g15 = 0; // expected-error{{'extern' variable cannot have an initializer}}
76  // FIXME: linkage specifier in warning.
77  __private_extern__ int g16 = 0; // expected-error{{'extern' variable cannot have an initializer}}
78}
79
80extern int g17;
81int g17 = 0;
82
83extern int g18 = 0; // expected-warning{{'extern' variable has an initializer}}
84
85__private_extern__ int g19;
86int g19 = 0;
87
88__private_extern__ int g20 = 0;
89