Messages in this thread Patch in this message | | | From | Vincent Dagonneau <> | Subject | [PATCH v4 2/4] tools/nolibc: Adding integer types and integer limit macros | Date | Wed, 8 Feb 2023 21:40:42 -0500 |
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This commit adds some of the missing integer types to stdint.h and adds limit macros (e.g. INTN_{MIN,MAX}).
The reference used for adding these types is https://pubs.opengroup.org/onlinepubs/009695399/basedefs/stdint.h.html.
Note that the maximum size of size_t is implementation-defined (>65535), in this case I chose to stick with what the kernel uses in linux/include/uapi/asm-generic/posix_types.h: unsigned int on 32bits and unsigned long on 64bits.
Signed-off-by: Vincent Dagonneau <v@vda.io> --- tools/include/nolibc/stdint.h | 60 +++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+)
diff --git a/tools/include/nolibc/stdint.h b/tools/include/nolibc/stdint.h index 4ba264031df9..6a7683de09ec 100644 --- a/tools/include/nolibc/stdint.h +++ b/tools/include/nolibc/stdint.h @@ -21,4 +21,64 @@ typedef unsigned long uintptr_t; typedef signed long intptr_t; typedef signed long ptrdiff_t; +typedef int8_t int_least8_t; +typedef uint8_t uint_least8_t; +typedef int16_t int_least16_t; +typedef uint16_t uint_least16_t; +typedef int32_t int_least32_t; +typedef uint32_t uint_least32_t; +typedef int64_t int_least64_t; +typedef uint64_t uint_least64_t; + +typedef int64_t intmax_t; +typedef uint64_t uintmax_t; + +/* limits of integral types */ + +#define INT8_MIN (-128) +#define INT16_MIN (-32767-1) +#define INT32_MIN (-2147483647-1) +#define INT64_MIN (-9223372036854775807LL-1) + +#define INT8_MAX (127) +#define INT16_MAX (32767) +#define INT32_MAX (2147483647) +#define INT64_MAX (9223372036854775807LL) + +#define UINT8_MAX (255) +#define UINT16_MAX (65535) +#define UINT32_MAX (4294967295U) +#define UINT64_MAX (18446744073709551615ULL) + +#define INT_LEAST8_MIN INT8_MIN +#define INT_LEAST16_MIN INT16_MIN +#define INT_LEAST32_MIN INT32_MIN +#define INT_LEAST64_MIN INT64_MIN + +#define INT_LEAST8_MAX INT8_MAX +#define INT_LEAST16_MAX INT16_MAX +#define INT_LEAST32_MAX INT32_MAX +#define INT_LEAST64_MAX INT64_MAX + +#define UINT_LEAST8_MAX UINT8_MAX +#define UINT_LEAST16_MAX UINT16_MAX +#define UINT_LEAST32_MAX UINT32_MAX +#define UINT_LEAST64_MAX UINT64_MAX + +#if __WORDSIZE == 64 + #define SIZE_MAX UINT64_MAX + #define INTPTR_MIN INT64_MIN + #define INTPTR_MAX INT64_MAX + #define UINTPTR_MAX UINT64_MAX + #define PTRDIFF_MIN INT64_MIN + #define PTRDIFF_MAX INT64_MAX +#else + #define SIZE_MAX UINT32_MAX + #define INTPTR_MIN INT32_MIN + #define INTPTR_MAX INT32_MAX + #define UINTPTR_MAX UINT32_MAX + #define PTRDIFF_MIN INT32_MIN + #define PTRDIFF_MAX INT32_MAX +#endif /* __WORDSIZE == 64 */ + #endif /* _NOLIBC_STDINT_H */ -- 2.39.1
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