NAME

       stdint.h

SYNOPSIS

   Macros
       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   (INT8_MAX * 2 + 1)
           #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   UINT16_MAX
           #define WCHAR_MAX   __WCHAR_MAX__
           #define WCHAR_MIN   __WCHAR_MIN__
           #define WINT_MAX   __WINT_MAX__
           #define WINT_MIN   __WINT_MIN__

       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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