1 /*
2  * Copyright (c) 2012-2017 Roberto E. Vargas Caballero
3  *
4  * SPDX-License-Identifier: BSD-3-Clause
5  */
6 /*
7  * Portions copyright (c) 2018-2019, Arm Limited and Contributors.
8  * All rights reserved.
9  */
10 
11 #ifndef STDDEF_H
12 #define STDDEF_H
13 
14 #include <stddef_.h>
15 
16 #ifndef _PTRDIFF_T
17 typedef long ptrdiff_t;
18 #define _PTRDIFF_T
19 #endif
20 
21 #ifndef NULL
22 #define NULL ((void *) 0)
23 #endif
24 
25 #define offsetof(st, m) __builtin_offsetof(st, m)
26 
27 #endif /* STDDEF_H */
28