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
51
52
53
54
|
/* PR c/7652 */
/* { dg-do compile } */
/* { dg-options "-Wall -Wextra -Wno-unused -Wno-implicit-fallthrough" } */
extern void bar (int);
void
fn (int i)
{
switch (i)
{
case 1:
bar (1);
__attribute__((used));
/* { dg-warning "empty declaration" "" { target c } .-1 } */
/* { dg-warning "ignored" "" { target c++ } .-2 } */
case 2:
bar (1);
__attribute__((foo));
/* { dg-warning "empty declaration" "" { target c } .-1 } */
/* { dg-warning "ignored" "" { target c++ } .-2 } */
case 3:
bar (1);
__attribute__((fallthrough)) /* { dg-warning "not followed" "" { target c } } */
case 4: /* { dg-error "expected" } */
bar (1);
__attribute__((fallthrough)) 1;
/* { dg-error "expected" "" { target c } .-1 } */
/* { dg-warning "not followed" "" { target *-*-* } .-2 } */
case 5:
bar (1);
__attribute__((fallthrough)) int i; /* { dg-warning "ignored|not followed" } */
case 6:
bar (1);
__attribute__((fallthrough ("x"))); /* { dg-warning "specified with a parameter" } */
case 7:
bar (1);
__attribute__((fallthrough, fallthrough)); /* { dg-warning "specified multiple times" } */
case 8:
bar (1);
__attribute__((fallthrough));
case 9:
__attribute__((fallthrough));
/* { dg-warning "not preceding" "" { target *-*-* } .-1 } */
bar (1);
case 10:
bar (1);
__attribute__((unused, fallthrough)); /* { dg-warning "attribute ignored" } */
case 11:
bar (1);
__attribute__((fallthrough, unused)); /* { dg-warning "attribute ignored" } */
default:
bar (99);
}
}
|
