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-rw-r--r--test/Sema/switch.c70
1 files changed, 70 insertions, 0 deletions
diff --git a/test/Sema/switch.c b/test/Sema/switch.c
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+++ b/test/Sema/switch.c
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+// RUN: clang-cc -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;
+ }
+}
+
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