1  /* Test _Alignof and _Alignas not in C90.  */
       2  /* { dg-do compile } */
       3  /* { dg-options "-std=iso9899:1990 -pedantic-errors" } */
       4  
       5  int a = _Alignof (int); /* { dg-error "ISO C90 does not support '_Alignof'" } */
       6  _Alignas (int) int b; /* { dg-error "ISO C90 does not support '_Alignas'" } */