clang/test/Parser/c1x-alignas.c

   1 // RUN: %clang_cc1 -std=c11 -fsyntax-only -verify %s
   2 // RUN: not %clang_cc1 -std=c99 -pedantic -fsyntax-only %s 2>&1 | FileCheck -check-prefix=CHECK-EXT %s
   3
   4 _Alignas(4) char c1;
   5 unsigned _Alignas(long) char c2;
   6 char _Alignas(16) c3;
   7
   8 char c4 _Alignas(32); // expected-error {{expected ';' after top level declarator}} expected-warning {{declaration does not declare anything}}
   9
  10 char _Alignas(_Alignof(int)) c5;
  11
  12 _Alignas(int) struct c6; // expected-warning {{'_Alignas' attribute ignored}}
  13 // CHECK-EXT: '_Alignas' is a C11 extension
  14 // CHECK-EXT: '_Alignof' is a C11 extension