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// RUN: %clang_cc1 -fsyntax-only -verify %s
void f (int z) {
while (z) {
default: z--; // expected-error {{statement not in switch}}
}
}
void foo(int X) {
switch (X) {
case 42: ; // expected-note {{previous case}}
case 5000000000LL: // expected-warning {{overflow}}
case 42: // expected-error {{duplicate case value}}
;
case 100 ... 99: ; // expected-warning {{empty case range}}
case 43: ; // expected-note {{previous case}}
case 43 ... 45: ; // expected-error {{duplicate case value}}
case 100 ... 20000:; // expected-note {{previous case}}
case 15000 ... 40000000:; // expected-error {{duplicate case value}}
}
}
void test3(void) {
// empty switch;
switch (0);
}
extern int g();
void test4()
{
switch (1) {
case 0 && g():
case 1 || g():
break;
}
switch(1) {
case g(): // expected-error {{expression is not an integer constant expression}}
case 0 ... g(): // expected-error {{expression is not an integer constant expression}}
break;
}
switch (1) {
case 0 && g() ... 1 || g():
break;
}
switch (1) {
case g() && 0: // expected-error {{expression is not an integer constant expression}} // expected-note {{subexpression not valid in an integer constant expression}}
break;
}
switch (1) {
case 0 ... g() || 1: // expected-error {{expression is not an integer constant expression}} // expected-note {{subexpression not valid in an integer constant expression}}
break;
}
}
void test5(int z) {
switch(z) {
default: // expected-note {{previous case defined here}}
default: // expected-error {{multiple default labels in one switch}}
break;
}
}
void test6() {
const char ch = 'a';
switch(ch) {
case 1234: // expected-warning {{overflow converting case value}}
break;
}
}
// PR5606
int f0(int var) { // expected-note{{'var' declared here}}
switch (va) { // expected-error{{use of undeclared identifier 'va'}}
case 1:
break;
case 2:
return 1;
}
return 2;
}
void test7() {
enum {
A = 1,
B
} a;
switch(a) { //expected-warning{{enumeration value 'B' not handled in switch}}
case A:
break;
}
switch(a) {
case B:
case A:
break;
}
switch(a) {
case A:
case B:
case 3: // expected-warning{{case value not in enumerated type ''}}
break;
}
switch(a) {
case A:
case B:
case 3 ... //expected-warning{{case value not in enumerated type ''}}
4: //expected-warning{{case value not in enumerated type ''}}
break;
}
switch(a) {
case 1 ... 2:
break;
}
switch(a) {
case 0 ... 2: //expected-warning{{case value not in enumerated type ''}}
break;
}
switch(a) {
case 1 ... 3: //expected-warning{{case value not in enumerated type ''}}
break;
}
switch(a) {
case 0 ... //expected-warning{{case value not in enumerated type ''}}
3: //expected-warning{{case value not in enumerated type ''}}
break;
}
}
void test8() {
enum {
A,
B,
C = 1
} a;
switch(a) {
case A:
case B:
break;
}
switch(a) {
case A:
case C:
break;
}
switch(a) { //expected-warning{{enumeration value 'B' not handled in switch}}
case A:
break;
}
}
void test9() {
enum {
A = 3,
C = 1
} a;
switch(a) {
case 0: //expected-warning{{case value not in enumerated type ''}}
case 1:
case 2: //expected-warning{{case value not in enumerated type ''}}
case 3:
case 4: //expected-warning{{case value not in enumerated type ''}}
break;
}
}
void test10() {
enum {
A = 10,
C = 2,
B = 4,
D = 12
} a;
switch(a) {
case 0 ... //expected-warning{{case value not in enumerated type ''}}
1: //expected-warning{{case value not in enumerated type ''}}
case 2 ... 4:
case 5 ... //expected-warning{{case value not in enumerated type ''}}
9: //expected-warning{{case value not in enumerated type ''}}
case 10 ... 12:
case 13 ... //expected-warning{{case value not in enumerated type ''}}
16: //expected-warning{{case value not in enumerated type ''}}
break;
}
}
void test11() {
enum {
A = -1,
B,
C
} a;
switch(a) { //expected-warning{{enumeration value 'A' not handled in switch}}
case B:
case C:
break;
}
switch(a) {
case B:
case C:
break;
default:
break;
}
}
void test12() {
enum {
A = -1,
B = 4294967286
} a;
switch(a) {
case A:
case B:
break;
}
}
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