_Alignas(16) int i1;int _Alignas(16) i2;void _Alignas(16) *p2;_Alignas(16) i3;int _Alignas(double) i4;int _Alignas(int) i5;#if 0/* The following are currently wrongly accepted by TCC but really shouldn't.  */int _Alignas(int _Alignas(16)) i6; //wrong, 'int _Alignas(16)' is no type-nametypedef int _Alignas(16) int16aligned_t; //wrong, _Alignas invalid on typedefint16aligned_t i7;#endif/* i8 should get an alignment of 16, because unlike _Alignas the   corresponding attribute _does_ apply to type-name, though not in   some clang versions.  */int _Alignas(int __attribute__((aligned(16)))) i8;extern int printf(const char*, ...);#ifdef _MSC_VER#define alignof(x) (int)__alignof(x)#else#define alignof(x) (int)__alignof__(x)#endifint main(){  printf("%d %d %d %d\n",         alignof(i1) == 16, alignof(i4) == alignof(double),         alignof(i5) == alignof(int) , alignof(i8) == 16);  return 0;}