stddef.h

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#ifndef _STDDEF_H
#define _STDDEF_H
 
#ifndef NULL
#define NULL    0
#endif
 
#include <stdint.h>
 
typedef int         ptrdiff_t;
 
typedef int         ssize_t;
typedef unsigned    wint_t;
 
#if !defined(__cplusplus)
typedef unsigned    wchar_t;
#endif
 
#endif