gcc/testsuite/gcc.dg/c11-align-8.c

   1 /* Test C11 alignment support.  Test invalid use of alignment
   2    specifiers in type names in cases not permitted by the resolution
   3    of DR#444.  */
   4 /* { dg-do compile } */
   5 /* { dg-options "-std=c11 -pedantic-errors" } */
   6
   7 #include <stddef.h>
   8
   9 void
  10 f (void)
  11 {
  12   _Generic (1, int: 1, _Alignas (8) long: 2); /* { dg-error "expected" } */
  13   sizeof (_Alignas (8) long); /* { dg-error "specified for type name" } */
  14   _Alignof (_Alignas (8) long); /* { dg-error "specified for type name" } */
  15   (_Alignas (8) long) 0; /* { dg-error "specified for type name" } */
  16   _Atomic (_Alignas (8) long) x; /* { dg-error "expected" } */
  17   _Alignas (_Alignas (8) long) long y; /* { dg-error "expected" } */
  18 }