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-rw-r--r--clang/test/Sema/generic-selection.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/clang/test/Sema/generic-selection.c b/clang/test/Sema/generic-selection.c
new file mode 100644
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+++ b/clang/test/Sema/generic-selection.c
@@ -0,0 +1,26 @@
+// RUN: %clang_cc1 -std=c1x -fsyntax-only -verify %s
+
+void foo(int n) {
+ (void) _Generic(0,
+ struct A: 0, // expected-error {{type 'struct A' in generic association incomplete}}
+ void(): 0, // expected-error {{type 'void ()' in generic association not an object type}}
+ int[n]: 0); // expected-error {{type 'int [n]' in generic association is a variably modified type}}
+
+ (void) _Generic(0,
+ void (*)(): 0, // expected-note {{compatible type 'void (*)()' specified here}}
+ void (*)(void): 0); // expected-error {{type 'void (*)(void)' in generic association compatible with previously specified type 'void (*)()'}}
+
+ (void) _Generic((void (*)()) 0, // expected-error {{controlling expression type 'void (*)()' compatible with 2 generic association types}}
+ void (*)(int): 0, // expected-note {{compatible type 'void (*)(int)' specified here}}
+ void (*)(void): 0); // expected-note {{compatible type 'void (*)(void)' specified here}}
+
+ (void) _Generic(0, // expected-error {{controlling expression type 'int' not compatible with any generic association type}}
+ char: 0, short: 0, long: 0);
+
+ int a1[_Generic(0, int: 1, short: 2, float: 3, default: 4) == 1 ? 1 : -1];
+ int a2[_Generic(0, default: 1, short: 2, float: 3, int: 4) == 4 ? 1 : -1];
+ int a3[_Generic(0L, int: 1, short: 2, float: 3, default: 4) == 4 ? 1 : -1];
+ int a4[_Generic(0L, default: 1, short: 2, float: 3, int: 4) == 1 ? 1 : -1];
+ int a5[_Generic(0, int: 1, short: 2, float: 3) == 1 ? 1 : -1];
+ int a6[_Generic(0, short: 1, float: 2, int: 3) == 3 ? 1 : -1];
+}