34 lines
854 B
C
34 lines
854 B
C
/*
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* stddef.h - common definitions
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*
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* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
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* See the copyright notice in the ACK home directory, in the file "Copyright".
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*/
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/* $Header$ */
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#if !defined(__STDDEF_HEADER__)
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#define __STDDEF_HEADER__
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#if !defined(NULL)
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#define NULL 0
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#endif /* NULL */
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#define offsetof(type, ident) (((size_t) &(((type *)0)->ident))
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#if !defined(__TYPE_PTRDIFF__)
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#define __TYPE_PTRDIFF__
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typedef int ptrdiff_t; /* result of substracting two pointers */
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#endif /* __TYPE_PTRDIFF__ */
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#if !defined(__TYPE_SIZE__)
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#define __TYPE_SIZE__
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typedef unsigned int size_t; /* type returned by sizeof */
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#endif /* __TYPE_SIZE__ */
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#if !defined(__TYPE_WCHAR__)
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#define __TYPE_WCHAR__
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typedef char wchar_t; /* type expanded character set */
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#endif /* __TYPE_WCHAR__ */
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#endif /* __STDDEF_HEADER__ */
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