File: c1x-alignas.c

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llvm-toolchain-21 1%3A21.1.0-1
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// RUN: %clang_cc1 -std=c11 -fsyntax-only -verify %s
// RUN: not %clang_cc1 -std=c99 -pedantic -fsyntax-only %s 2>&1 | FileCheck -check-prefix=CHECK-EXT %s

_Alignas(4) char c1;
unsigned _Alignas(long) char c2;
char _Alignas(16) c3;

char c4 _Alignas(32); // expected-error {{expected ';' after top level declarator}} expected-warning {{declaration does not declare anything}}

char _Alignas(_Alignof(int)) c5;

_Alignas(int) struct c6; // expected-warning {{'_Alignas' attribute ignored}}
// CHECK-EXT: '_Alignas' is a C11 extension
// CHECK-EXT: '_Alignof' is a C11 extension