/* GCT changes follow */
/* $Header: /usr/export/home/marick/RCS/stddef.h,v 1.6 1993/01/28 16:51:47 marick Exp $ */
/* $Log: stddef.h,v $
 * Revision 1.6  1993/01/28  16:51:47  marick
 * Changes for IBM 370 architecture running AIX.
 *
 * Revision 1.5  1992/08/30  20:18:57  marick
 * Bull DPX/2 changes (from Bull)
 * */

#ifdef m370
typedef unsigned long w_char_t;  /* gdk: 29oct92 */
#endif

#ifdef DPX2
#include "/usr/include/stddef.h"
#else
#ifndef _STDDEF_H
#define _STDDEF_H

/* Signed type of difference of two pointers.  */

#ifndef _PTRDIFF_T
typedef long ptrdiff_t;
#endif
/* Unsigned type of `sizeof' something.  */

/* GCT:  Convex uses __SIZE_T */
/* GCT:  ISC uses _T_SIZE */
/* GCT:  SGI uses _SIZE_T_.  This is getting absurd. */
/* in case <sys/types.h> has defined it. */
#if !defined(_SIZE_T) && !defined(__SIZE_T) && !defined(_T_SIZE) && !defined(_SIZE_T_)
#define _SIZE_T
#ifdef m370
typedef long size_t;
#else
typedef unsigned long size_t;
#endif
#endif /* _SIZE_T */

/* A null pointer constant.  */

#undef NULL		/* in case <stdio.h> has defined it. */
#define NULL ((void *)0)

/* Offset of member MEMBER in a struct of type TYPE.  */

#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)

#endif /* _STDDEF_H */

#endif