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Macros
stdint.h File Reference

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## 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

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