1 // RUN: %clang_cc1 %s -std=c90 -verify -fsyntax-only
t0(int x)2 void t0(int x) {
3 int explicit_decl();
4 int (*p)();
5 if(x > 0)
6 x = g() + 1; // expected-note {{previous implicit declaration}}
7 p = g;
8 if(x < 0) {
9 extern void u(int (*)[h()]);
10 int (*q)() = h;
11 }
12 p = h; /* expected-error {{use of undeclared identifier 'h'}} */
13 }
14
t1(int x)15 void t1(int x) {
16 int (*p)();
17 switch (x) {
18 g();
19 case 0:
20 x = h() + 1;
21 break;
22 case 1:
23 p = g;
24 p = h;
25 break;
26 }
27 p = g; /* expected-error {{use of undeclared identifier 'g'}} */
28 p = h; /* expected-error {{use of undeclared identifier 'h'}} */
29 explicit_decl();
30 p = explicit_decl;
31 }
32
t2(int x)33 int t2(int x) {
34 int y = ({ if (x > 0) x = g() + 1; 2*x; });
35 int (*p)() = g; /* expected-error {{use of undeclared identifier 'g'}} */
36 return y;
37 }
38
PR34822()39 int PR34822() {
40 {int i = sizeof(PR34822_foo());} /* expected-note {{previous definition is here}} */
41 {extern int PR34822_foo;} /* expected-error {{redefinition of 'PR34822_foo' as different kind of symbol}} */
42
43 {extern int PR34822_bar;} /* expected-note {{previous declaration is here}} */
44 {int i = sizeof(PR34822_bar());} /* expected-warning {{use of out-of-scope declaration of 'PR34822_bar' whose type is not compatible with that of an implicit declaration}} expected-error {{called object type 'int' is not a function or function pointer}} */
45 }
46
47 int (*p)() = g; /* expected-error {{use of undeclared identifier 'g'}} */
48 int (*q)() = h; /* expected-error {{use of undeclared identifier 'h'}} */
49
50 float g(); /* expected-error {{conflicting types for 'g'}} */
51