NetBSD/include/null.h

/*	$NetBSD: null.h,v 1.1 1999/12/22 21:26:17 kleink Exp $	*/

#ifndef	NULL
#if !defined(__GNUG__) || __GNUG__ < 2 || (__GNUG__ == 2 && __GNUC_MINOR__ < 90)
#define	NULL	0
#else
#define	NULL	__null
#endif
#endif
For the benefit of G++'s null pointer constant implementation, #define NULL as __null with egcs 1.0 (GCC 2.90) and above. As several headers are affected by this change, move the definition into a new header file, <null.h>, to ease maintenance. 1999-12-23 00:26:15 +03:00			`/* $NetBSD: null.h,v 1.1 1999/12/22 21:26:17 kleink Exp $ */`

			`#ifndef NULL`
			`#if !defined(__GNUG__) \|\| __GNUG__ < 2 \|\| (__GNUG__ == 2 && __GNUC_MINOR__ < 90)`
			`#define NULL 0`
			`#else`
			`#define NULL __null`
			`#endif`
			`#endif`