1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
| // RUN: %clang_cc1 %s -std=c90 -verify -fsyntax-only
void t0(int x) {
int explicit_decl();
int (*p)();
if(x > 0)
x = g() + 1; // expected-note {{previous implicit declaration}}
p = g;
if(x < 0) {
extern void u(int (*)[h()]);
int (*q)() = h;
}
p = h; /* expected-error {{use of undeclared identifier 'h'}} */
}
void t1(int x) {
int (*p)();
switch (x) {
g();
case 0:
x = h() + 1;
break;
case 1:
p = g;
p = h;
break;
}
p = g; /* expected-error {{use of undeclared identifier 'g'}} */
p = h; /* expected-error {{use of undeclared identifier 'h'}} */
explicit_decl();
p = explicit_decl;
}
int t2(int x) {
int y = ({ if (x > 0) x = g() + 1; 2*x; });
int (*p)() = g; /* expected-error {{use of undeclared identifier 'g'}} */
return y;
}
int PR34822() {
{int i = sizeof(PR34822_foo());} /* expected-note {{previous definition is here}} */
{extern int PR34822_foo;} /* expected-error {{redefinition of 'PR34822_foo' as different kind of symbol}} */
{extern int PR34822_bar;} /* expected-note {{previous declaration is here}} */
{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}} */
}
int (*p)() = g; /* expected-error {{use of undeclared identifier 'g'}} */
int (*q)() = h; /* expected-error {{use of undeclared identifier 'h'}} */
float g(); /* expected-error {{conflicting types for 'g'}} */
|