+2011-11-01 Bruno Haible <bruno@clisp.org>
+
+ alignof: Avoid collision with stdalign module.
+ * lib/alignof.h (alignof): Remove macro.
+ * NEWS: Mention the change.
+ Reported by Paul Eggert.
+
2011-11-01 Bruno Haible <bruno@clisp.org>
New module 'fchownat', split off from module 'openat'.
Date Modules Changes
+2011-11-01 alignof This module no longer provides the alignof() macro.
+ Use either alignof_slot() or alignof_type() instead.
+
2011-11-01 openat This module no longer provides the fchownat()
function. If you need this function, you now need
to request the 'fchownat' module.
#include <stddef.h>
-/* Determine the alignment of a structure slot (field) of a given type,
+/* alignof_slot (TYPE)
+ Determine the alignment of a structure slot (field) of a given type,
at compile time. Note that the result depends on the ABI.
+ This is the same as alignof (TYPE) and _Alignof (TYPE), defined in
+ <stdalign.h> if __alignof_is_defined is 1.
Note: The result cannot be used as a value for an 'enum' constant,
due to bugs in HP-UX 10.20 cc and AIX 3.2.5 xlc. */
#if defined __cplusplus
# define alignof_slot(type) offsetof (struct { char __slot1; type __slot2; }, __slot2)
#endif
-/* Determine the good alignment of an object of the given type at compile time.
+/* alignof_type (TYPE)
+ Determine the good alignment of an object of the given type at compile time.
Note that this is not necessarily the same as alignof_slot(type).
For example, with GNU C on x86 platforms: alignof_type(double) = 8, but
- when -malign-double is not specified: alignof_slot(double) = 4,
# define alignof_type alignof_slot
#endif
-/* alignof is an alias for alignof_slot semantics, since that's what most
- callers need.
- Note: The result cannot be used as a value for an 'enum' constant,
- due to bugs in HP-UX 10.20 cc and AIX 3.2.5 xlc. */
-#define alignof alignof_slot
-
#endif /* _ALIGNOF_H */