| // RUN: %clang_cc1 -fsyntax-only -verify -std=c11 -Dalignof=__alignof %s |
| // RUN: %clang_cc1 -fsyntax-only -verify -std=c11 -Dalignof=_Alignof -DUSING_C11_SYNTAX %s |
| |
| _Alignas(3) int align_illegal; //expected-error {{requested alignment is not a power of 2}} |
| _Alignas(int) char align_big; |
| _Alignas(1) int align_small; // expected-error {{requested alignment is less than minimum}} |
| _Alignas(1) unsigned _Alignas(8) int _Alignas(1) align_multiple; |
| |
| struct align_member { |
| _Alignas(8) int member; |
| _Alignas(1) char bitfield : 1; // expected-error {{'_Alignas' attribute cannot be applied to a bit-field}} |
| }; |
| |
| typedef _Alignas(8) char align_typedef; // expected-error {{'_Alignas' attribute only applies to variables and fields}} |
| |
| void f(_Alignas(1) char c) { // expected-error {{'_Alignas' attribute cannot be applied to a function parameter}} |
| _Alignas(1) register char k; // expected-error {{'_Alignas' attribute cannot be applied to a variable with 'register' storage class}} |
| } |
| |
| #ifdef USING_C11_SYNTAX |
| // expected-warning@+4{{'_Alignof' applied to an expression is a GNU extension}} |
| // expected-warning@+4{{'_Alignof' applied to an expression is a GNU extension}} |
| // expected-warning@+4{{'_Alignof' applied to an expression is a GNU extension}} |
| #endif |
| _Static_assert(alignof(align_big) == alignof(int), "k's alignment is wrong"); |
| _Static_assert(alignof(align_small) == 1, "j's alignment is wrong"); |
| _Static_assert(alignof(align_multiple) == 8, "l's alignment is wrong"); |
| _Static_assert(alignof(struct align_member) == 8, "quuux's alignment is wrong"); |
| _Static_assert(sizeof(struct align_member) == 8, "quuux's size is wrong"); |