|  | // RUN: %clang_cc1 -std=c11 %s -fsyntax-only -verify -pedantic | 
|  | // RUN: %clang_cc1 -std=c99 %s -fsyntax-only -verify=expected,ext -pedantic -Wno-typedef-redefinition | 
|  |  | 
|  | typedef _Atomic(int) atomic_int; // ext-warning {{'_Atomic' is a C11 extension}} | 
|  | typedef _Atomic int atomic_int; // ext-warning {{'_Atomic' is a C11 extension}} | 
|  | typedef _Atomic _Atomic _Atomic(int) atomic_int; // expected-warning {{duplicate '_Atomic' declaration specifier}} \ | 
|  | // ext-warning 3 {{'_Atomic' is a C11 extension}} | 
|  |  | 
|  | typedef const int const_int; | 
|  |  | 
|  | typedef const atomic_int const_atomic_int; | 
|  | typedef _Atomic const int const_atomic_int; // ext-warning {{'_Atomic' is a C11 extension}} | 
|  | typedef const _Atomic int const_atomic_int; // ext-warning {{'_Atomic' is a C11 extension}} | 
|  | typedef const _Atomic(int) const_atomic_int; // ext-warning {{'_Atomic' is a C11 extension}} | 
|  | typedef const _Atomic(_Atomic int) const_atomic_int; // expected-error {{_Atomic cannot be applied to atomic type '_Atomic(int)'}} \ | 
|  | // ext-warning 2 {{'_Atomic' is a C11 extension}} | 
|  | typedef _Atomic const_int const_atomic_int; // ext-warning {{'_Atomic' is a C11 extension}} | 
|  | typedef _Atomic(const_int) const_atomic_int; // expected-error {{_Atomic cannot be applied to qualified type 'const_int' (aka 'const int')}} \ | 
|  | // ext-warning {{'_Atomic' is a C11 extension}} | 
|  |  | 
|  | typedef int *_Atomic atomic_int_ptr; // ext-warning {{'_Atomic' is a C11 extension}} | 
|  | typedef _Atomic(int *) atomic_int_ptr; // ext-warning {{'_Atomic' is a C11 extension}} | 
|  | typedef int (*_Atomic atomic_int_ptr); // ext-warning {{'_Atomic' is a C11 extension}} | 
|  |  | 
|  | typedef int _Atomic *int_atomic_ptr; // ext-warning {{'_Atomic' is a C11 extension}} | 
|  | typedef _Atomic(int) *int_atomic_ptr; // ext-warning {{'_Atomic' is a C11 extension}} | 
|  |  | 
|  | typedef int int_fn(void); | 
|  | typedef _Atomic int_fn atomic_int_fn; // expected-error {{_Atomic cannot be applied to function type 'int_fn' (aka 'int (void)')}} \ | 
|  | // ext-warning {{'_Atomic' is a C11 extension}} | 
|  | typedef _Atomic int atomic_int_array[3]; // ext-warning {{'_Atomic' is a C11 extension}} | 
|  | 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]')}} \ | 
|  | // ext-warning {{'_Atomic' is a C11 extension}} | 
|  |  | 
|  | _Atomic struct S { int n; }; // expected-warning {{'_Atomic' ignored on this declaration}} \ | 
|  | // ext-warning {{'_Atomic' is a C11 extension}} | 
|  |  | 
|  | typedef _Atomic int __attribute__((address_space(1))) atomic_addr_space_int; // ext-warning {{'_Atomic' is a C11 extension}} | 
|  | typedef _Atomic(int) __attribute__((address_space(1))) atomic_addr_space_int; // ext-warning {{'_Atomic' is a C11 extension}} | 
|  |  | 
|  | typedef _Atomic int __attribute__((vector_size(16))) atomic_vector_int; // ext-warning {{'_Atomic' is a C11 extension}} | 
|  | typedef _Atomic(int __attribute__((vector_size(16)))) atomic_vector_int; // ext-warning {{'_Atomic' is a C11 extension}} | 
|  |  | 
|  | struct S | 
|  | _Atomic atomic_s_no_missing_semicolon; // ext-warning {{'_Atomic' is a C11 extension}} | 
|  |  | 
|  | int *const _Atomic atomic_return_type(void); // ext-warning {{'_Atomic' is a C11 extension}} |