xref: /aosp_15_r20/external/musl/include/stddef.h (revision c9945492fdd68bbe62686c5b452b4dc1be3f8453)
1*c9945492SAndroid Build Coastguard Worker #ifndef _STDDEF_H
2*c9945492SAndroid Build Coastguard Worker #define _STDDEF_H
3*c9945492SAndroid Build Coastguard Worker 
4*c9945492SAndroid Build Coastguard Worker #if __cplusplus >= 201103L
5*c9945492SAndroid Build Coastguard Worker #define NULL nullptr
6*c9945492SAndroid Build Coastguard Worker #elif defined(__cplusplus)
7*c9945492SAndroid Build Coastguard Worker #define NULL 0L
8*c9945492SAndroid Build Coastguard Worker #else
9*c9945492SAndroid Build Coastguard Worker #define NULL ((void*)0)
10*c9945492SAndroid Build Coastguard Worker #endif
11*c9945492SAndroid Build Coastguard Worker 
12*c9945492SAndroid Build Coastguard Worker #define __NEED_ptrdiff_t
13*c9945492SAndroid Build Coastguard Worker #define __NEED_size_t
14*c9945492SAndroid Build Coastguard Worker #define __NEED_wchar_t
15*c9945492SAndroid Build Coastguard Worker #if __STDC_VERSION__ >= 201112L || __cplusplus >= 201103L
16*c9945492SAndroid Build Coastguard Worker #define __NEED_max_align_t
17*c9945492SAndroid Build Coastguard Worker #endif
18*c9945492SAndroid Build Coastguard Worker 
19*c9945492SAndroid Build Coastguard Worker #include <bits/alltypes.h>
20*c9945492SAndroid Build Coastguard Worker 
21*c9945492SAndroid Build Coastguard Worker #if __GNUC__ > 3
22*c9945492SAndroid Build Coastguard Worker #define offsetof(type, member) __builtin_offsetof(type, member)
23*c9945492SAndroid Build Coastguard Worker #else
24*c9945492SAndroid Build Coastguard Worker #define offsetof(type, member) ((size_t)( (char *)&(((type *)0)->member) - (char *)0 ))
25*c9945492SAndroid Build Coastguard Worker #endif
26*c9945492SAndroid Build Coastguard Worker 
27*c9945492SAndroid Build Coastguard Worker #endif
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