1 // RUN: %clang_cc1 -std=c1x -fsyntax-only -verify %s
2
3 void g(void);
4
foo(int n)5 void foo(int n) {
6 (void) _Generic(0,
7 struct A: 0, // expected-error {{type 'struct A' in generic association incomplete}}
8 void(): 0, // expected-error {{type 'void ()' in generic association not an object type}}
9 int[n]: 0); // expected-error {{type 'int [n]' in generic association is a variably modified type}}
10
11 (void) _Generic(0,
12 void (*)(): 0, // expected-note {{compatible type 'void (*)()' specified here}}
13 void (*)(void): 0); // expected-error {{type 'void (*)(void)' in generic association compatible with previously specified type 'void (*)()'}}
14
15 (void) _Generic((void (*)()) 0, // expected-error {{controlling expression type 'void (*)()' compatible with 2 generic association types}}
16 void (*)(int): 0, // expected-note {{compatible type 'void (*)(int)' specified here}}
17 void (*)(void): 0); // expected-note {{compatible type 'void (*)(void)' specified here}}
18
19 (void) _Generic(0, // expected-error {{controlling expression type 'int' not compatible with any generic association type}}
20 char: 0, short: 0, long: 0);
21
22 int a1[_Generic(0, int: 1, short: 2, float: 3, default: 4) == 1 ? 1 : -1];
23 int a2[_Generic(0, default: 1, short: 2, float: 3, int: 4) == 4 ? 1 : -1];
24 int a3[_Generic(0L, int: 1, short: 2, float: 3, default: 4) == 4 ? 1 : -1];
25 int a4[_Generic(0L, default: 1, short: 2, float: 3, int: 4) == 1 ? 1 : -1];
26 int a5[_Generic(0, int: 1, short: 2, float: 3) == 1 ? 1 : -1];
27 int a6[_Generic(0, short: 1, float: 2, int: 3) == 3 ? 1 : -1];
28
29 int a7[_Generic("test", char *: 1, default: 2) == 1 ? 1 : -1];
30 int a8[_Generic(g, void (*)(void): 1, default: 2) == 1 ? 1 : -1];
31
32 const int i = 12;
33 int a9[_Generic(i, int: 1, default: 2) == 1 ? 1 : -1];
34 }
35