1 // RUN: %clang_cc1 -std=c11 %s -fsyntax-only -verify -pedantic
2 
3 typedef _Atomic(int) atomic_int;
4 typedef _Atomic int atomic_int;
5 typedef _Atomic _Atomic _Atomic(int) atomic_int; // expected-warning {{duplicate '_Atomic' declaration specifier}}
6 
7 typedef const int const_int;
8 
9 typedef const atomic_int const_atomic_int;
10 typedef _Atomic const int const_atomic_int;
11 typedef const _Atomic int const_atomic_int;
12 typedef const _Atomic(int) const_atomic_int;
13 typedef const _Atomic(_Atomic int) const_atomic_int; // expected-error {{_Atomic cannot be applied to atomic type '_Atomic(int)'}}
14 typedef _Atomic const_int const_atomic_int;
15 typedef _Atomic(const_int) const_atomic_int; // expected-error {{_Atomic cannot be applied to qualified type 'const_int' (aka 'const int')}}
16 
17 typedef int *_Atomic atomic_int_ptr;
18 typedef _Atomic(int *) atomic_int_ptr;
19 typedef int (*_Atomic atomic_int_ptr);
20 
21 typedef int _Atomic *int_atomic_ptr;
22 typedef _Atomic(int) *int_atomic_ptr;
23 
24 typedef int int_fn();
25 typedef _Atomic int_fn atomic_int_fn; // expected-error {{_Atomic cannot be applied to function type 'int_fn' (aka 'int ()')}}
26 typedef _Atomic int atomic_int_array[3];
27 typedef _Atomic atomic_int_array atomic_int_atomic_array; // expected-error {{_Atomic cannot be applied to array type 'atomic_int_array' (aka '_Atomic(int) [3]')}}
28 
29 _Atomic struct S { int n; }; // expected-warning {{'_Atomic' ignored on this declaration}}
30 
31 typedef _Atomic int __attribute__((address_space(1))) atomic_addr_space_int;
32 typedef _Atomic(int) __attribute__((address_space(1))) atomic_addr_space_int;
33 
34 typedef _Atomic int __attribute__((vector_size(16))) atomic_vector_int;
35 typedef _Atomic(int __attribute__((vector_size(16)))) atomic_vector_int;
36 
37 struct S
38 _Atomic atomic_s_no_missing_semicolon;
39 
40 int *const _Atomic atomic_return_type();
41