| 1 | /* $OpenBSD: _null.h,v 1.2 2016/09/09 22:07:58 millert Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Written by Todd C. Miller, September 9, 2016 |
| 5 | * Public domain. |
| 6 | */ |
| 7 | |
| 8 | #ifndef NULL |
| 9 | #if !defined(__cplusplus) |
| 10 | #define NULL ((void *)0) |
| 11 | #elif __cplusplus >= 201103L |
| 12 | #define NULL nullptr |
| 13 | #elif defined(__GNUG__) |
| 14 | #define NULL __null |
| 15 | #else |
| 16 | #define NULL 0L |
| 17 | #endif |
| 18 | #endif |