The <stdint.h
> include file declares
sets of integer types that have specified widths and defines corresponding
sets of macros. It also defines macros that specify limits of integer
types corresponding to the types defined in other standard include
files.
The following exact-width integer types are defined:
int8_t
int16_t
|
int32_t
int64_t
|
uint8_t
uint16_t
|
uint32_t
uint64_t
|
The following minimum-width integer types are defined:
int_least8_t
int_least16_t
|
int_least32_t
int_least64_t
|
uint_least8_t
uint_least16_t
|
uint_least32_t
uint_least64_t
|
The following fastest minimum-width integer types are
defined:
int_fast8_t
int_fast16_t
|
int_fast32_t
int_fast64_t
|
uint_fast8_t
uint_fast16_t
|
uint_fast32_t
uint_fast64_t
|
The following greatest-width integer types are defined:
The following macros are defined for limits of exact-width
integer types (See note 1):
INT8_MAX
INT8_MIN
INT16_MAX
|
INT16_MIN
INT32_MAX
INT32_MIN
|
INT64_MAX
INT64_MIN
UINT8_MAX
|
UINT16_MAX
UINT32_MAX
UINT64_MAX
|
The following macros are defined for limits of minimum-width
integer types (See note 1):
INT_LEAST8_MAX
INT_LEAST8_MIN
INT_LEAST16_MAX
|
INT_LEAST16_MIN
INT_LEAST32_MAX
INT_LEAST32_MIN
|
INT_LEAST64_MIN
INT_LEAST64_MIN
UINT_LEAST8_MAX
|
UINT_LEAST16_MAX
UINT_LEAST32_MAX
UINT_LEAST64_MAX
|
The following macros are defined for limits of fastest
minimum-width integer types (See note 1):
INT_FAST8_MAX
INT_FAST8_MIN
INT_FAST16_MAX
|
INT_FAST16_MIN
INT_FAST32_MAX
INT_FAST32_MIN
|
INT_FAST64_MIN
INT_FAST64_MIN
UINT_FAST8_MAX
|
UINT_FAST16_MAX
UINT_FAST32_MAX
UINT_FAST64_MAX
|
The following macros are defined for limits of greatest-width integer types (See note
1):
INTMAX_MIN
INTMAX_MAX
UINTMAX_MAX
|
The following macros are defined for limits for other
integer types (See note 1):
PTRDIFF_MAX
PTRDIFF_MIN
SIG_ATOMIC_MAX
|
SIG_ATOMIC_MIN
SIZE_MAX
WCHAR_MAX
|
WCHAR_MIN
WINT_MAX
WINT_MIN
|
The following macros are defined for minimum-width integer
constant expressions (See note 2):
INT8_C
INT16_C
|
INT32_C
INT64_C
|
UINT8_C
UINT16_C
|
UINT32_C
UINT64_C
|
The following macros are defined for greatest-width integer constant expressions (See note
2):
Note:
- These macros are defined for C programs. They are defined for C++ only when
__STDC_LIMIT_MACROS is defined before <
stdint.h
> is included.
- These macros are defined for C programs. They are defined for C++ only when
__STDC_CONSTANT_MACROS is defined before <
stdint.h
> is included.