NAME¶

stdint.h -

SYNOPSIS¶

Macros¶

#define __USING_MINT8 0 #define __CONCATenate(left, right) left ## right #define __CONCAT(left, right) __CONCATenate(left, right)
Limits of specified-width integer types C++ implementations should define these macros only when __STDC_LIMIT_MACROS is defined before < stdint.h> is included

#define INT8_MAX 0x7f #define INT8_MIN (-INT8_MAX - 1) #define UINT8_MAX (__CONCAT(INT8_MAX, U) * 2U + 1U) #define INT16_MAX 0x7fff #define INT16_MIN (-INT16_MAX - 1) #define UINT16_MAX (__CONCAT(INT16_MAX, U) * 2U + 1U) #define INT32_MAX 0x7fffffffL #define INT32_MIN (-INT32_MAX - 1L) #define UINT32_MAX (__CONCAT(INT32_MAX, U) * 2UL + 1UL) #define INT64_MAX 0x7fffffffffffffffLL #define INT64_MIN (-INT64_MAX - 1LL) #define UINT64_MAX (__CONCAT(INT64_MAX, U) * 2ULL + 1ULL)

Limits of minimum-width integer types

#define INT_LEAST8_MAX INT8_MAX #define INT_LEAST8_MIN INT8_MIN #define UINT_LEAST8_MAX UINT8_MAX #define INT_LEAST16_MAX INT16_MAX #define INT_LEAST16_MIN INT16_MIN #define UINT_LEAST16_MAX UINT16_MAX #define INT_LEAST32_MAX INT32_MAX #define INT_LEAST32_MIN INT32_MIN #define UINT_LEAST32_MAX UINT32_MAX #define INT_LEAST64_MAX INT64_MAX #define INT_LEAST64_MIN INT64_MIN #define UINT_LEAST64_MAX UINT64_MAX

Limits of fastest minimum-width integer types

#define INT_FAST8_MAX INT8_MAX #define INT_FAST8_MIN INT8_MIN #define UINT_FAST8_MAX UINT8_MAX #define INT_FAST16_MAX INT16_MAX #define INT_FAST16_MIN INT16_MIN #define UINT_FAST16_MAX UINT16_MAX #define INT_FAST32_MAX INT32_MAX #define INT_FAST32_MIN INT32_MIN #define UINT_FAST32_MAX UINT32_MAX #define INT_FAST64_MAX INT64_MAX #define INT_FAST64_MIN INT64_MIN #define UINT_FAST64_MAX UINT64_MAX

Limits of integer types capable of holding object pointers

#define INTPTR_MAX INT16_MAX #define INTPTR_MIN INT16_MIN #define UINTPTR_MAX UINT16_MAX

Limits of greatest-width integer types

#define INTMAX_MAX INT64_MAX #define INTMAX_MIN INT64_MIN #define UINTMAX_MAX UINT64_MAX

Limits of other integer types C++ implementations should define these macros only when __STDC_LIMIT_MACROS is defined before < stdint.h> is included

#define PTRDIFF_MAX INT16_MAX #define PTRDIFF_MIN INT16_MIN #define SIG_ATOMIC_MAX INT8_MAX #define SIG_ATOMIC_MIN INT8_MIN #define SIZE_MAX (__CONCAT(INT16_MAX, U))

Macros for integer constants C++ implementations should define these macros only when __STDC_CONSTANT_MACROS is defined before < stdint.h> is included. These definitions are valid for integer constants without suffix and for macros defined as integer constant without suffix

#define INT8_C(value) ((int8_t) value) #define UINT8_C(value) ((uint8_t) __CONCAT(value, U)) #define INT16_C(value) value #define UINT16_C(value) __CONCAT(value, U) #define INT32_C(value) __CONCAT(value, L) #define UINT32_C(value) __CONCAT(value, UL) #define INT64_C(value) __CONCAT(value, LL) #define UINT64_C(value) __CONCAT(value, ULL) #define INTMAX_C(value) __CONCAT(value, LL) #define UINTMAX_C(value) __CONCAT(value, ULL)

Typedefs¶

Exact-width integer types Integer types having exactly the specified width

typedef signed char int8_t typedef unsigned char uint8_t typedef signed int int16_t typedef unsigned int uint16_t typedef signed long int int32_t typedef unsigned long int uint32_t typedef signed long long int int64_t typedef unsigned long long int uint64_t

Integer types capable of holding object pointers These allow you to declare variables of the same size as a pointer.

typedef int16_t intptr_t typedef uint16_t uintptr_t

Minimum-width integer types Integer types having at least the specified width

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

Fastest minimum-width integer types Integer types being usually fastest having at least the specified width

typedef int8_t int_fast8_t typedef uint8_t uint_fast8_t typedef int16_t int_fast16_t typedef uint16_t uint_fast16_t typedef int32_t int_fast32_t typedef uint32_t uint_fast32_t typedef int64_t int_fast64_t typedef uint64_t uint_fast64_t

Greatest-width integer types Types designating integer data capable of representing any value of any integer type in the corresponding signed or unsigned category

typedef int64_t intmax_t typedef uint64_t uintmax_t

Author¶

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