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| author | Masahiro Yamada <yamada.m@jp.panasonic.com> | 2015-01-21 14:09:19 +0900 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2015-01-21 14:58:07 +0100 |
| commit | bfa1b12fed600b621057d347f083e620aeced9a7 (patch) | |
| tree | 216b2e2ea6586e56259f131cd23f74dd6da0c510 /include | |
| parent | d27077bd761277cf8075f8e489b511af1c2acef3 (diff) | |
| download | barebox-bfa1b12fed600b621057d347f083e620aeced9a7.tar.gz barebox-bfa1b12fed600b621057d347f083e620aeced9a7.tar.xz | |
linux/kernel.h: add more *_MAX, *_MIN macros
Imported from Linux 3.19-rc5.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/kernel.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 4d7e41edb5..a0395909d0 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -16,6 +16,20 @@ #define LLONG_MAX ((long long)(~0ULL>>1)) #define LLONG_MIN (-LLONG_MAX - 1) #define ULLONG_MAX (~0ULL) +#define SIZE_MAX (~(size_t)0) + +#define U8_MAX ((u8)~0U) +#define S8_MAX ((s8)(U8_MAX>>1)) +#define S8_MIN ((s8)(-S8_MAX - 1)) +#define U16_MAX ((u16)~0U) +#define S16_MAX ((s16)(U16_MAX>>1)) +#define S16_MIN ((s16)(-S16_MAX - 1)) +#define U32_MAX ((u32)~0U) +#define S32_MAX ((s32)(U32_MAX>>1)) +#define S32_MIN ((s32)(-S32_MAX - 1)) +#define U64_MAX ((u64)~0ULL) +#define S64_MAX ((s64)(U64_MAX>>1)) +#define S64_MIN ((s64)(-S64_MAX - 1)) /* * This looks more complex than it should be. But we need to |