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NAME

       <stdint.h>: Standard Integer Types -

   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

   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)

Detailed Description

        #include <stdint.h>

       Use [u]intN_t if you need exactly N bits.

       Since these typedefs are mandated by the C99 standard, they are
       preferred over rolling your own typedefs.

Define Documentation

   #define INT16_C(value)   value define a constant of type int16_t
   #define INT16_MAX   0x7fff largest positive value an int16_t can hold.
   #define INT16_MIN   (-INT16_MAX - 1) smallest negative value an int16_t can
       hold.
   #define INT32_C(value)   __CONCAT(value, L) define a constant of type
       int32_t
   #define INT32_MAX   0x7fffffffL largest positive value an int32_t can hold.
   #define INT32_MIN   (-INT32_MAX - 1L) smallest negative value an int32_t
       can hold.
   #define INT64_C(value)   __CONCAT(value, LL) define a constant of type
       int64_t
   #define INT64_MAX   0x7fffffffffffffffLL largest positive value an int64_t
       can hold.
   #define INT64_MIN   (-INT64_MAX - 1LL) smallest negative value an int64_t
       can hold.
   #define INT8_C(value)   ((int8_t) value) define a constant of type int8_t
   #define INT8_MAX   0x7f largest positive value an int8_t can hold.
   #define INT8_MIN   (-INT8_MAX - 1) smallest negative value an int8_t can
       hold.
   #define INT_FAST16_MAX   INT16_MAX largest positive value an int_fast16_t
       can hold.
   #define INT_FAST16_MIN   INT16_MIN smallest negative value an int_fast16_t
       can hold.
   #define INT_FAST32_MAX   INT32_MAX largest positive value an int_fast32_t
       can hold.
   #define INT_FAST32_MIN   INT32_MIN smallest negative value an int_fast32_t
       can hold.
   #define INT_FAST64_MAX   INT64_MAX largest positive value an int_fast64_t
       can hold.
   #define INT_FAST64_MIN   INT64_MIN smallest negative value an int_fast64_t
       can hold.
   #define INT_FAST8_MAX   INT8_MAX largest positive value an int_fast8_t can
       hold.
   #define INT_FAST8_MIN   INT8_MIN smallest negative value an int_fast8_t can
       hold.
   #define INT_LEAST16_MAX   INT16_MAX largest positive value an int_least16_t
       can hold.
   #define INT_LEAST16_MIN   INT16_MIN smallest negative value an
       int_least16_t can hold.
   #define INT_LEAST32_MAX   INT32_MAX largest positive value an int_least32_t
       can hold.
   #define INT_LEAST32_MIN   INT32_MIN smallest negative value an
       int_least32_t can hold.
   #define INT_LEAST64_MAX   INT64_MAX largest positive value an int_least64_t
       can hold.
   #define INT_LEAST64_MIN   INT64_MIN smallest negative value an
       int_least64_t can hold.
   #define INT_LEAST8_MAX   INT8_MAX largest positive value an int_least8_t
       can hold.
   #define INT_LEAST8_MIN   INT8_MIN smallest negative value an int_least8_t
       can hold.
   #define INTMAX_C(value)   __CONCAT(value, LL) define a constant of type
       intmax_t
   #define INTMAX_MAX   INT64_MAX largest positive value an intmax_t can hold.
   #define INTMAX_MIN   INT64_MIN smallest negative value an intmax_t can
       hold.
   #define INTPTR_MAX   INT16_MAX largest positive value an intptr_t can hold.
   #define INTPTR_MIN   INT16_MIN smallest negative value an intptr_t can
       hold.
   #define PTRDIFF_MAX   INT16_MAX largest positive value a ptrdiff_t can
       hold.
   #define PTRDIFF_MIN   INT16_MIN smallest negative value a ptrdiff_t can
       hold.
   #define SIG_ATOMIC_MAX   INT8_MAX largest positive value a sig_atomic_t can
       hold.
   #define SIG_ATOMIC_MIN   INT8_MIN smallest negative value a sig_atomic_t
       can hold.
   #define SIZE_MAX   (__CONCAT(INT16_MAX, U)) largest value a size_t can
       hold.
   #define UINT16_C(value)   __CONCAT(value, U) define a constant of type
       uint16_t
   #define UINT16_MAX   (__CONCAT(INT16_MAX, U) * 2U + 1U) largest value an
       uint16_t can hold.
   #define UINT32_C(value)   __CONCAT(value, UL) define a constant of type
       uint32_t
   #define UINT32_MAX   (__CONCAT(INT32_MAX, U) * 2UL + 1UL) largest value an
       uint32_t can hold.
   #define UINT64_C(value)   __CONCAT(value, ULL) define a constant of type
       uint64_t
   #define UINT64_MAX   (__CONCAT(INT64_MAX, U) * 2ULL + 1ULL) largest value
       an uint64_t can hold.
   #define UINT8_C(value)   ((uint8_t) __CONCAT(value, U)) define a constant
       of type uint8_t
   #define UINT8_MAX   (__CONCAT(INT8_MAX, U) * 2U + 1U) largest value an
       uint8_t can hold.
   #define UINT_FAST16_MAX   UINT16_MAX largest value an uint_fast16_t can
       hold.
   #define UINT_FAST32_MAX   UINT32_MAX largest value an uint_fast32_t can
       hold.
   #define UINT_FAST64_MAX   UINT64_MAX largest value an uint_fast64_t can
       hold.
   #define UINT_FAST8_MAX   UINT8_MAX largest value an uint_fast8_t can hold.
   #define UINT_LEAST16_MAX   UINT16_MAX largest value an uint_least16_t can
       hold.
   #define UINT_LEAST32_MAX   UINT32_MAX largest value an uint_least32_t can
       hold.
   #define UINT_LEAST64_MAX   UINT64_MAX largest value an uint_least64_t can
       hold.
   #define UINT_LEAST8_MAX   UINT8_MAX largest value an uint_least8_t can
       hold.
   #define UINTMAX_C(value)   __CONCAT(value, ULL) define a constant of type
       uintmax_t
   #define UINTMAX_MAX   UINT64_MAX largest value an uintmax_t can hold.
   #define UINTPTR_MAX   UINT16_MAX largest value an uintptr_t can hold.

Typedef Documentation

   typedef signed int int16_t 16-bit signed type.
   typedef signed long int int32_t 32-bit signed type.
   typedef signed long long int int64_t 64-bit signed type.
       Note:
           This type is not available when the compiler option -mint8 is in
           effect.

   typedef signed char int8_t 8-bit signed type.
   typedef int16_t int_fast16_t fastest signed int with at least 16 bits.
   typedef int32_t int_fast32_t fastest signed int with at least 32 bits.
   typedef int64_t int_fast64_t fastest signed int with at least 64 bits.
       Note:
           This type is not available when the compiler option -mint8 is in
           effect.

   typedef int8_t int_fast8_t fastest signed int with at least 8 bits.
   typedef int16_t int_least16_t signed int with at least 16 bits.
   typedef int32_t int_least32_t signed int with at least 32 bits.
   typedef int64_t int_least64_t signed int with at least 64 bits.
       Note:
           This type is not available when the compiler option -mint8 is in
           effect.

   typedef int8_t int_least8_t signed int with at least 8 bits.
   typedef int64_t intmax_t largest signed int available.
   typedef int16_t intptr_t Signed pointer compatible type.
   typedef unsigned int uint16_t 16-bit unsigned type.
   typedef unsigned long int uint32_t 32-bit unsigned type.
   typedef unsigned long long int uint64_t 64-bit unsigned type.
       Note:
           This type is not available when the compiler option -mint8 is in
           effect.

   typedef unsigned char uint8_t 8-bit unsigned type.
   typedef uint16_t uint_fast16_t fastest unsigned int with at least 16 bits.
   typedef uint32_t uint_fast32_t fastest unsigned int with at least 32 bits.
   typedef uint64_t uint_fast64_t fastest unsigned int with at least 64 bits.
       Note:
           This type is not available when the compiler option -mint8 is in
           effect.

   typedef uint8_t uint_fast8_t fastest unsigned int with at least 8 bits.
   typedef uint16_t uint_least16_t unsigned int with at least 16 bits.
   typedef uint32_t uint_least32_t unsigned int with at least 32 bits.
   typedef uint64_t uint_least64_t unsigned int with at least 64 bits.
       Note:
           This type is not available when the compiler option -mint8 is in
           effect.

   typedef uint8_t uint_least8_t unsigned int with at least 8 bits.
   typedef uint64_t uintmax_t largest unsigned int available.
   typedef uint16_t uintptr_t Unsigned pointer compatible type.

Author

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Version 1.6.8                   Thu Aug 1<stdint.h>: Standard Integer Types(3)