AVR-LibC  2.2.0
Standard C library for AVR-GCC
 

AVR-LibC Documentation

Logo

AVR-LibC Development Pages

Main Page

User Manual

Library Reference

FAQ

Example Projects

File List

Loading...
Searching...
No Matches
stdint.h File Reference

Go to the source code of this file.

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