diff options
| author | Rasmus Villemoes <ravi@prevas.dk> | 2025-07-07 22:36:54 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2025-07-14 12:43:28 -0600 |
| commit | 0604595c16a6bf3c0aed131b80d1a25d5d74057d (patch) | |
| tree | bda8fdd379f4ba97aa7d3d96ff0f11cbf3e86cf7 | |
| parent | dc323f3bee318514af9d7c6fed1e01c712bc71ae (diff) | |
move limits for sNN/uNN types from kernel.h to limits.h
Since we define the {s,u}{8,16,32,64} types the same way on all
architectures, i.e. everybody uses asm-generic/int-ll64.h, we can just
define the associated limit macros in terms of those for the
corresponding types. This eliminates another set of limit macros that
are not usable in #if conditionals.
These type names and macros are not C or POSIX, so there's no language
violation, but certainly a violation of developers' reasonable
expectations.
Signed-off-by: Rasmus Villemoes <ravi@prevas.dk>
| -rw-r--r-- | include/limits.h | 13 | ||||
| -rw-r--r-- | include/linux/kernel.h | 13 |
2 files changed, 13 insertions, 13 deletions
diff --git a/include/limits.h b/include/limits.h index 4dcfbe9b156..c2e3d0302b7 100644 --- a/include/limits.h +++ b/include/limits.h @@ -31,6 +31,19 @@ #define LLONG_MIN (-LLONG_MAX - 1LL) #define ULLONG_MAX (LLONG_MAX * 2ULL + 1ULL) +#define U8_MAX UCHAR_MAX +#define S8_MAX SCHAR_MAX +#define S8_MIN SCHAR_MIN +#define U16_MAX USHRT_MAX +#define S16_MAX SHRT_MAX +#define S16_MIN SHRT_MIN +#define U32_MAX UINT_MAX +#define S32_MAX INT_MAX +#define S32_MIN INT_MIN +#define U64_MAX ULLONG_MAX +#define S64_MAX LLONG_MAX +#define S64_MIN LLONG_MIN + #define CHAR_BIT 8 #define UINT32_MAX 0xffffffffU #define UINT64_MAX 0xffffffffffffffffULL diff --git a/include/linux/kernel.h b/include/linux/kernel.h index f26274fbe1d..d3d979834ae 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -5,19 +5,6 @@ #include <linux/printk.h> /* for printf/pr_* utilities */ #include <limits.h> -#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)) - #define INT32_MAX S32_MAX #define STACK_MAGIC 0xdeadbeef |