1*199767f8SToomas Soome /*- 2*199767f8SToomas Soome * Copyright (c) 2003 Marcel Moolenaar 3*199767f8SToomas Soome * All rights reserved. 4*199767f8SToomas Soome * 5*199767f8SToomas Soome * Redistribution and use in source and binary forms, with or without 6*199767f8SToomas Soome * modification, are permitted provided that the following conditions 7*199767f8SToomas Soome * are met: 8*199767f8SToomas Soome * 9*199767f8SToomas Soome * 1. Redistributions of source code must retain the above copyright 10*199767f8SToomas Soome * notice, this list of conditions and the following disclaimer. 11*199767f8SToomas Soome * 2. Redistributions in binary form must reproduce the above copyright 12*199767f8SToomas Soome * notice, this list of conditions and the following disclaimer in the 13*199767f8SToomas Soome * documentation and/or other materials provided with the distribution. 14*199767f8SToomas Soome * 15*199767f8SToomas Soome * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16*199767f8SToomas Soome * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17*199767f8SToomas Soome * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18*199767f8SToomas Soome * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19*199767f8SToomas Soome * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20*199767f8SToomas Soome * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21*199767f8SToomas Soome * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22*199767f8SToomas Soome * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23*199767f8SToomas Soome * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24*199767f8SToomas Soome * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25*199767f8SToomas Soome * 26*199767f8SToomas Soome * $FreeBSD$ 27*199767f8SToomas Soome */ 28*199767f8SToomas Soome 29*199767f8SToomas Soome #ifndef NULL 30*199767f8SToomas Soome 31*199767f8SToomas Soome #if !defined(__cplusplus) 32*199767f8SToomas Soome #define NULL ((void *)0) 33*199767f8SToomas Soome #else 34*199767f8SToomas Soome #if __cplusplus >= 201103L 35*199767f8SToomas Soome #define NULL nullptr 36*199767f8SToomas Soome #elif defined(__GNUG__) && defined(__GNUC__) && __GNUC__ >= 4 37*199767f8SToomas Soome #define NULL __null 38*199767f8SToomas Soome #else 39*199767f8SToomas Soome #if defined(__LP64__) 40*199767f8SToomas Soome #define NULL (0L) 41*199767f8SToomas Soome #else 42*199767f8SToomas Soome #define NULL 0 43*199767f8SToomas Soome #endif /* __LP64__ */ 44*199767f8SToomas Soome #endif /* __GNUG__ */ 45*199767f8SToomas Soome #endif /* !__cplusplus */ 46*199767f8SToomas Soome 47*199767f8SToomas Soome #endif 48