private-extern.c revision 6684d85e9075e3c1750d911c69a517145a82a410 
1// RUN: %clang_cc1 -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  int g6; // expected-note {{previous}}
23  extern int g6; // expected-error {{extern declaration of 'g6' follows non-extern declaration}}
24}
25
26void f1() {
27  int g7; // expected-note {{previous}}
28  __private_extern__ int g7; // expected-error {{extern declaration of 'g7' follows non-extern declaration}}
29}
30
31void f2() {
32  extern int g8; // expected-note{{previous definition}}
33  int g8; // expected-error {{non-extern declaration of 'g8' follows extern declaration}}
34}
35
36void f3() {
37  __private_extern__ int g9; // expected-note{{previous definition}}
38  int g9; // expected-error {{non-extern declaration of 'g9' follows extern declaration}}
39}
40
41void f4() {
42  extern int g10;
43  extern int g10;
44}
45
46void f5() {
47  __private_extern__ int g11;
48  __private_extern__ int g11;
49}
50
51void f6() {
52  // FIXME: Diagnose
53  extern int g12;
54  __private_extern__ int g12;
55}
56
57void f7() {
58  // FIXME: Diagnose
59  __private_extern__ int g13;
60  extern int g13;
61}
62
63struct s0;
64void f8() {
65  extern struct s0 g14;
66  __private_extern__ struct s0 g14;
67}
68struct s0 { int x; };
69
70void f9() {
71  extern int g15 = 0; // expected-error{{'extern' variable cannot have an initializer}}
72  // FIXME: linkage specifier in warning.
73  __private_extern__ int g16 = 0; // expected-error{{'extern' variable cannot have an initializer}}
74}
75
76extern int g17;
77int g17 = 0;
78
79extern int g18 = 0; // expected-warning{{'extern' variable has an initializer}}
80
81__private_extern__ int g19;
82int g19 = 0;
83
84__private_extern__ int g20 = 0;
85