1 // RUN: %clang_cc1 -fsyntax-only -verify -Wswitch-enum %s
2
test()3 void test() {
4 bool x = true;
5 switch (x) { // expected-warning {{bool}}
6 case 0:
7 break;
8 }
9
10 int n = 3;
11 switch (n && true) { // expected-warning {{bool}}
12 case 1:
13 break;
14 }
15 }
16
17 // PR5518
18 struct A {
19 operator int(); // expected-note{{conversion to integral type}}
20 };
21
x()22 void x() {
23 switch(A()) {
24 }
25 }
26
27 enum E { e1, e2 };
28 struct B : A {
29 operator E() const; // expected-note{{conversion to enumeration type}}
30 };
31
x2()32 void x2() {
33 switch (B()) { // expected-error{{multiple conversions}}
34 }
35 }
36
37 struct C; // expected-note{{forward declaration}}
38
x3(C & c)39 void x3(C &c) {
40 switch (c) { // expected-error{{incomplete class type}}
41 }
42 }
43
44 namespace test3 {
45 enum En { A, B, C };
foo()46 template <En how> void foo() {
47 int x = 0, y = 5;
48
49 switch (how) { //expected-warning {{no case matching constant switch condition '2'}}
50 case A: x *= y; break;
51 case B: x += y; break;
52 // No case for C, but it's okay because we have a constant condition.
53 }
54 }
55
56 template void foo<A>();
57 template void foo<B>();
58 template void foo<C>(); //expected-note {{in instantiation}}
59 }
60
61 // PR9304 and rdar://9045501
click_check_header_sizes()62 void click_check_header_sizes() {
63 switch (0 == 8) { // expected-warning {{switch condition has boolean value}}
64 case 0: ;
65 }
66 }
67