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emacs/nt/inc/stdalign.h
Eli Zaretskii 55a6cca64f MS-Windows followup for 2012-07-28T23:05:32Z!eggert@cs.ucla.edu.
nt/inc/stdalign.h (_Alignas, alignas): Define.
 src/makefile.w32-in (LISP_H): Add $(NT_INC)/stdalign.h.

Fixes: debbugs:9772
2012-07-29 18:43:09 +03:00

26 lines
677 B
C++

#ifndef _NT_STDALIGN_H_
#define _NT_STDALIGN_H_
/* This header has the necessary stuff from lib/stdalign.in.h, but
avoids the need to have Sed at build time. */
#include <stddef.h>
#if defined __cplusplus
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)
#endif
#define alignof _Alignof
#if __GNUC__
# define _Alignas(a) __attribute__ ((__aligned__ (a)))
#elif 1300 <= _MSC_VER
# define _Alignas(a) __declspec (align (a))
#endif
#ifdef _Alignas
# define alignas _Alignas
#endif
#endif /* _NT_STDALIGN_H_ */