stdint.h

linux内核

/*
 * stdint.h
 */

#ifndef _STDINT_H
#define _STDINT_H

/* Exact types */

typedef signed char		int8_t;
typedef signed short		int16_t;
typedef signed int		int32_t;
typedef signed long long	int64_t;

typedef unsigned char		uint8_t;
typedef unsigned short		uint16_t;
typedef unsigned int		uint32_t;
typedef unsigned long long	uint64_t;

/* Small types */

typedef signed char		int_least8_t;
typedef signed short		int_least16_t;
typedef signed int		int_least32_t;
typedef signed long long	int_least64_t;

typedef unsigned char		uint_least8_t;
typedef unsigned short		uint_least16_t;
typedef unsigned int		uint_least32_t;
typedef unsigned long long	uint_least64_t;

/* Fast types */

typedef signed char		int_fast8_t;
typedef signed short		int_fast16_t;
typedef signed int		int_fast32_t;
typedef signed long long	int_fast64_t;

typedef unsigned char		uint_fast8_t;
typedef unsigned short		uint_fast16_t;
typedef unsigned int		uint_fast32_t;
typedef unsigned long long	uint_fast64_t;

/* Pointer types */

typedef int32_t			intptr_t;
typedef uint32_t		uintptr_t;

/* Maximal types */

typedef int64_t			intmax_t;
typedef uint64_t		uintmax_t;

/*
 * To be strictly correct...
 */
#if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS)

# 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              (255U)
# define UINT16_MAX             (65535U)
# define UINT32_MAX             (4294967295U)
# define UINT64_MAX             (18446744073709551615ULL)

# define INT_LEAST8_MIN               (-128)
# define INT_LEAST16_MIN              (-32767-1)
# define INT_LEAST32_MIN              (-2147483647-1)
# define INT_LEAST64_MIN              (-9223372036854775807LL-1)

# define INT_LEAST8_MAX               (127)
# define INT_LEAST16_MAX              (32767)
# define INT_LEAST32_MAX              (2147483647)
# define INT_LEAST64_MAX              (9223372036854775807LL)

# define UINT_LEAST8_MAX              (255U)
# define UINT_LEAST16_MAX             (65535U)
# define UINT_LEAST32_MAX             (4294967295U)
# define UINT_LEAST64_MAX             (18446744073709551615ULL)

# define INT_FAST8_MIN               (-128)
# define INT_FAST16_MIN              (-32767-1)
# define INT_FAST32_MIN              (-2147483647-1)
# define INT_FAST64_MIN              (-9223372036854775807LL-1)

# define INT_FAST8_MAX               (127)
# define INT_FAST16_MAX              (32767)
# define INT_FAST32_MAX              (2147483647)
# define INT_FAST64_MAX              (9223372036854775807LL)

# define UINT_FAST8_MAX              (255U)
# define UINT_FAST16_MAX             (65535U)
# define UINT_FAST32_MAX             (4294967295U)
# define UINT_FAST64_MAX             (18446744073709551615ULL)

# define INTPTR_MIN		(-2147483647-1)
# define INTPTR_MAX		(2147483647)
# define UINTPTR_MAX		(4294967295U)

# define INTMAX_MIN		(-9223372036854775807LL-1)
# define INTMAX_MAX		(9223372036854775807LL)
# define UINTMAX_MAX		(18446744073709551615ULL)

/* ptrdiff_t limit */
# define PTRDIFF_MIN		(-2147483647-1)
# define PTRDIFF_MAX		(2147483647)

/* sig_atomic_t limit */
# define SIG_ATOMIC_MIN         (-2147483647-1)
# define SIG_ATOMIC_MAX         (2147483647)

/* size_t limit */
# define SIZE_MAX		(4294967295U)

#endif /* STDC_LIMIT_MACROS */

#if !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS)

# define INT8_C(n)	n
# define INT16_C(n)	n
# define INT32_C(n)	n
# define INT64_C(n)	n ## LL

# define UINT8_C(n)	n ## U
# define UINT16_C(n)	n ## U
# define UINT32_C(n)	n ## U
# define UINT64_C(n)	n ## ULL

# define INTMAX_C(n)	n ## LL
# define UINTMAX_C(n)	n ## ULL

#endif /* STDC_CONSTANT_MACROS */

#endif /* _STDINT_H */