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98e688a9da
This should be safer for casting and more compatible with existing code bases that wrongly assume it must be defined as a pointer.
28 lines
547 B
C
28 lines
547 B
C
#ifndef _STDDEF_H
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#define _STDDEF_H
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#if __cplusplus >= 201103L
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#define NULL nullptr
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#elif defined(__cplusplus)
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#define NULL 0L
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#else
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#define NULL ((void*)0)
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#endif
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#define __NEED_ptrdiff_t
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#define __NEED_size_t
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#define __NEED_wchar_t
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#if __STDC_VERSION__ >= 201112L || __cplusplus >= 201103L
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#define __NEED_max_align_t
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#endif
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#include <bits/alltypes.h>
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#if __GNUC__ > 3
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#define offsetof(type, member) __builtin_offsetof(type, member)
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#else
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#define offsetof(type, member) ((size_t)( (char *)&(((type *)0)->member) - (char *)0 ))
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#endif
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#endif
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