103 lines
1.5 KiB
C
103 lines
1.5 KiB
C
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/***
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*stddef.h - definitions/declarations for common constants, types, variables
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*
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* Copyright (c) 1985-1993, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* This file contains definitions and declarations for some commonly
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* used constants, types, and variables.
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* [ANSI]
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*
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****/
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#ifndef _INC_STDDEF
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Conditional macro definition for function calling type and variable type
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* qualifiers.
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*/
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#if ( (_MSC_VER >= 800) && (_M_IX86 >= 300) )
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/*
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* Definitions for MS C8-32 (386/486) compiler
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*/
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#define _CRTAPI1 __cdecl
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#define _CRTAPI2 __cdecl
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#else
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/*
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* Other compilers (e.g., MIPS)
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*/
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#define _CRTAPI1
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#define _CRTAPI2
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#endif
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/* define NULL pointer value and the offset() macro */
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#ifndef NULL
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#ifdef __cplusplus
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#define NULL 0
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#else
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#define NULL ((void *)0)
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#endif
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#endif
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#define offsetof(s,m) (size_t)&(((s *)0)->m)
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/* declare reference to errno */
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#ifdef _MT
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extern int * _CRTAPI1 _errno(void);
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#define errno (*_errno())
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#else
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extern int errno;
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#endif
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/* define the implementation dependent size types */
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#ifndef _PTRDIFF_T_DEFINED
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typedef int ptrdiff_t;
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#define _PTRDIFF_T_DEFINED
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#endif
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#ifndef _SIZE_T_DEFINED
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typedef unsigned int size_t;
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#define _SIZE_T_DEFINED
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#endif
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#ifndef _WCHAR_T_DEFINED
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typedef unsigned short wchar_t;
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#define _WCHAR_T_DEFINED
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#endif
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#ifdef _MT
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extern unsigned long _CRTAPI1 __threadid(void);
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#define _threadid (__threadid())
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extern unsigned long _CRTAPI1 __threadhandle(void);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#define _INC_STDDEF
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#endif /* _INC_STDDEF */
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