-/* -*- buffer-read-only: t -*- vi: set ro: */
-/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
/* A substitute for ISO C11 <stdalign.h>.
- Copyright 2011-2013 Free Software Foundation, Inc.
+ Copyright 2011-2015 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
are 4 unless the option '-malign-double' is used.
The result cannot be used as a value for an 'enum' constant, if you
- want to be portable to HP-UX 10.20 cc and AIX 3.2.5 xlc. */
+ want to be portable to HP-UX 10.20 cc and AIX 3.2.5 xlc.
+
+ Include <stddef.h> for offsetof. */
#include <stddef.h>
-#if defined __cplusplus
+
+/* FreeBSD 9.1 <sys/cdefs.h>, included by <stddef.h> and lots of other
+ standard headers, defines conflicting implementations of _Alignas
+ and _Alignof that are no better than ours; override them. */
+#undef _Alignas
+#undef _Alignof
+
+#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112
+# ifdef __cplusplus
+# if 201103 <= __cplusplus
+# define _Alignof(type) alignof (type)
+# else
template <class __t> struct __alignof_helper { char __a; __t __b; };
-# define _Alignof(type) offsetof (__alignof_helper<type>, __b)
-#else
-# define _Alignof(type) offsetof (struct { char __a; type __b; }, __b)
+# define _Alignof(type) offsetof (__alignof_helper<type>, __b)
+# endif
+# else
+# define _Alignof(type) offsetof (struct { char __a; type __b; }, __b)
+# endif
+#endif
+#if ! (defined __cplusplus && 201103 <= __cplusplus)
+# define alignof _Alignof
#endif
-#define alignof _Alignof
#define __alignof_is_defined 1
/* alignas (A), also known as _Alignas (A), aligns a variable or type
*/
-#if __GNUC__ || __IBMC__ || __IBMCPP__ || 0x5110 <= __SUNPRO_C
-# define _Alignas(a) __attribute__ ((__aligned__ (a)))
-#elif 1300 <= _MSC_VER
-# define _Alignas(a) __declspec (align (a))
+#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112
+# if defined __cplusplus && 201103 <= __cplusplus
+# define _Alignas(a) alignas (a)
+# elif ((defined __APPLE__ && defined __MACH__ \
+ ? 4 < __GNUC__ + (1 <= __GNUC_MINOR__) \
+ : __GNUC__) \
+ || __HP_cc || __HP_aCC || __IBMC__ || __IBMCPP__ \
+ || __ICC || 0x5110 <= __SUNPRO_C)
+# define _Alignas(a) __attribute__ ((__aligned__ (a)))
+# elif 1300 <= _MSC_VER
+# define _Alignas(a) __declspec (align (a))
+# endif
#endif
-#ifdef _Alignas
+#if ((defined _Alignas && ! (defined __cplusplus && 201103 <= __cplusplus)) \
+ || (defined __STDC_VERSION && 201112 <= __STDC_VERSION__))
# define alignas _Alignas
+#endif
+#if defined alignas || (defined __cplusplus && 201103 <= __cplusplus)
# define __alignas_is_defined 1
#endif