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| // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
void test() {
bool x = true;
switch (x) { // expected-warning {{bool}}
case 0:
break;
}
int n = 3;
switch (n && true) { // expected-warning {{bool}}
case 1:
break;
}
}
// PR5518
struct A {
operator int(); // expected-note{{conversion to integral type}}
};
void x() {
switch(A()) {
}
}
enum E { e1, e2 };
struct B : A {
operator E() const; // expected-note{{conversion to enumeration type}}
};
void x2() {
switch (B()) { // expected-error{{multiple conversions}}
}
}
struct C; // expected-note{{forward declaration}}
void x3(C &c) {
switch (c) { // expected-error{{incomplete class type}}
}
}
namespace test3 {
enum En { A, B, C };
template <En how> void foo() {
int x = 0, y = 5;
switch (how) { //expected-warning {{no case matching constant switch condition '2'}}
case A: x *= y; break;
case B: x += y; break;
// No case for C, but it's okay because we have a constant condition.
}
}
template void foo<A>();
template void foo<B>();
template void foo<C>(); //expected-note {{in instantiation}}
}
// PR9304 and rdar://9045501
void click_check_header_sizes() {
switch (0 == 8) { // expected-warning {{switch condition has boolean value}}
case 0: ;
}
}
void local_class(int n) {
for (;;) switch (n) {
case 0:
struct S {
void f() {
case 1: // expected-error {{'case' statement not in switch statement}}
break; // expected-error {{'break' statement not in loop or switch statement}}
default: // expected-error {{'default' statement not in switch statement}}
continue; // expected-error {{'continue' statement not in loop statement}}
}
};
S().f();
[]{
case 2: // expected-error {{'case' statement not in switch statement}}
break; // expected-error {{'break' statement not in loop or switch statement}}
default: // expected-error {{'default' statement not in switch statement}}
continue; // expected-error {{'continue' statement not in loop statement}}
}();
}
}
namespace Conversion {
struct S {
explicit operator int(); // expected-note {{conversion}}
};
template<typename T> void f(T t) {
switch (t) { // expected-error {{explicit conversion}}
case 0:
return;
default:
break;
}
}
template void f(S); // expected-note {{instantiation of}}
}
// rdar://29230764
namespace OpaqueEnumWarnings {
enum Opaque : int;
enum class OpaqueClass : int;
enum class Defined : int;
enum class Defined : int { a };
void test(Opaque o, OpaqueClass oc, Defined d) {
// Don't warn that case value is not present in opaque enums.
switch (o) {
case (Opaque)1:
break;
}
switch (oc) {
case (OpaqueClass)1:
break;
}
switch (d) {
case Defined::a:
break;
case (Defined)2: // expected-warning {{case value not in enumerated type 'OpaqueEnumWarnings::Defined'}}
break;
}
}
}
|