29 lines
540 B
C++
29 lines
540 B
C++
#ifndef _STDDEF_H
|
|
#define _STDDEF_H
|
|
|
|
#if __cplusplus >= 201103L
|
|
#define NULL nullptr
|
|
#elif defined(__cplusplus)
|
|
#define NULL 0L
|
|
#else
|
|
#ifndef NULL
|
|
#define NULL ((void*)0)
|
|
#endif
|
|
#endif
|
|
|
|
#define __NEED_ptrdiff_t
|
|
#define __NEED_size_t
|
|
#define __NEED_wchar_t
|
|
#if __STDC_VERSION__ >= 201112L || __cplusplus >= 201103L
|
|
#define __NEED_max_align_t
|
|
#endif
|
|
|
|
|
|
#if __GNUC__ > 3
|
|
#define offsetof(type, member) __builtin_offsetof(type, member)
|
|
#else
|
|
#define offsetof(type, member) ((size_t)( (char *)&(((type *)0)->member) - (char *)0 ))
|
|
#endif
|
|
|
|
#endif
|