1 /* Test diagnostics for switch statements and labels therein.  Test
2    with no special options.  */
3 /* Origin: Joseph Myers <joseph@codesourcery.com> */
4 /* { dg-do compile } */
5 /* { dg-options "" } */
6 
7 void
f(int a,double d,void * p)8 f (int a, double d, void *p)
9 {
10   switch (d) /* { dg-error "switch quantity not an integer" } */
11     {
12     }
13   switch (p) /* { dg-error "switch quantity not an integer" } */
14     {
15     }
16   switch (a)
17     {
18     case (void *)0: ; /* { dg-error "pointers are not permitted as case values" } */
19     }
20   switch (a)
21     {
22     case (double)0: ; /* { dg-error "case label does not reduce to an integer constant" } */
23     }
24   switch (a)
25     {
26     case (char)0: ;
27     }
28   switch (a)
29     {
30     case 0 ... 0: ;
31     }
32   switch (a)
33     {
34     case 0 ... -1: ; /* { dg-warning "empty range specified" } */
35     }
36   switch (a)
37     {
38     case 0 ... -2: ; /* { dg-warning "empty range specified" } */
39     }
40   switch (a)
41     {
42     case 0:
43     default: /* { dg-message "this is the first default label" } */
44     case 1:
45     default: ; /* { dg-error "multiple default labels in one switch" } */
46     }
47   switch (a)
48     {
49     case 0: /* { dg-message "previously used here" } */
50     case 1:
51     case 0: ; /* { dg-error "duplicate case value" } */
52     }
53  case 1: ; /* { dg-error "case label not within a switch statement" } */
54  default: ; /* { dg-error "'default' label not within a switch statement" } */
55    break; /* { dg-error "break statement not within loop or switch" } */
56    continue; /* { dg-error "continue statement not within a loop" } */
57    switch (a)
58      {
59      case a: ; /* { dg-error "case label does not reduce to an integer constant" } */
60      }
61    switch (a)
62      {
63      case 0: /* { dg-message "this is the first entry overlapping that value" } */
64      case -1 ... 1: /* { dg-error "duplicate \\(or overlapping\\) case value" } */
65      case 2 ... 3: /* { dg-message "previously used here" } */
66      case 2: /* { dg-error "duplicate case value" } */
67      case 4 ... 7: /* { dg-message "this is the first entry overlapping that value" } */
68      case 6 ... 9: ; /* { dg-error "duplicate \\(or overlapping\\) case value" } */
69      }
70    switch (a)
71      {
72      case 0:
73        continue; /* { dg-error "continue statement not within a loop" } */
74      }
75 }
76