diff options
Diffstat (limited to 'include/uapi/linux/stddef.h')
| -rw-r--r-- | include/uapi/linux/stddef.h | 38 |
1 files changed, 34 insertions, 4 deletions
diff --git a/include/uapi/linux/stddef.h b/include/uapi/linux/stddef.h index 7c3fc3980881..9a28f7d9a334 100644 --- a/include/uapi/linux/stddef.h +++ b/include/uapi/linux/stddef.h @@ -2,12 +2,21 @@ #ifndef _UAPI_LINUX_STDDEF_H #define _UAPI_LINUX_STDDEF_H +#ifdef __KERNEL__ #include <linux/compiler_types.h> +#endif #ifndef __always_inline #define __always_inline inline #endif +/* Not all C++ standards support type declarations inside an anonymous union */ +#ifndef __cplusplus +#define __struct_group_tag(TAG) TAG +#else +#define __struct_group_tag(TAG) +#endif + /** * __struct_group() - Create a mirrored named and anonyomous struct * @@ -20,15 +29,20 @@ * and size: one anonymous and one named. The former's members can be used * normally without sub-struct naming, and the latter can be used to * reason about the start, end, and size of the group of struct members. - * The named struct can also be explicitly tagged for layer reuse, as well - * as both having struct attributes appended. + * The named struct can also be explicitly tagged for layer reuse (C only), + * as well as both having struct attributes appended. */ #define __struct_group(TAG, NAME, ATTRS, MEMBERS...) \ union { \ struct { MEMBERS } ATTRS; \ - struct TAG { MEMBERS } ATTRS NAME; \ - } + struct __struct_group_tag(TAG) { MEMBERS } ATTRS NAME; \ + } ATTRS +#ifdef __cplusplus +/* sizeof(struct{}) is 1 in C++, not 0, can't use C version of the macro. */ +#define __DECLARE_FLEX_ARRAY(T, member) \ + T member[0] +#else /** * __DECLARE_FLEX_ARRAY() - Declare a flexible array usable in a union * @@ -49,3 +63,19 @@ #ifndef __counted_by #define __counted_by(m) #endif + +#ifndef __counted_by_le +#define __counted_by_le(m) +#endif + +#ifndef __counted_by_be +#define __counted_by_be(m) +#endif + +#ifdef __KERNEL__ +#define __kernel_nonstring __nonstring +#else +#define __kernel_nonstring +#endif + +#endif /* _UAPI_LINUX_STDDEF_H */ |