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Îòïðàâëåíî semen 31 èþëÿ 2004 ã. 12:29

Integer Types

Detailed Description

#include

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.

Note:: If avr-gcc's -mint8 option is used, no 32-bit types will be available.

Todo:: There is a pending patch that may go into gcc to change the behaviour of the -mint8 option. The current (2003-09-17) situation for -mint8 is sizeof(int) == 1, sizeof(long) == 2 and sizeof(long long) == 8. Note the absence of a 4-byte, 32-bit type. The patch proposes to change sozeof(long long) to be 4 bytes (32 bits). When and if the patch is included in gcc, we will need to change avr-libc accordingly.


8-bit types.
typedef signed char	int8_t
typedef unsigned char	uint8_t
16-bit types.
typedef int	int16_t
typedef unsigned int	uint16_t
32-bit types.
typedef long	int32_t
typedef unsigned long	uint32_t
64-bit types.
typedef long long	int64_t
typedef unsigned long long	uint64_t
Pointer types.
These allow you to declare variables of the same size as a pointer.
typedef int16_t	intptr_t
typedef uint16_t	uintptr_t

typedef int int16_t

16-bit signed type.

typedef long int32_t

32-bit signed type.

typedef long long int64_t

64-bit signed type.

typedef signed char int8_t

8-bit signed type.

typedef int16_t intptr_t

Signed pointer compatible type.

typedef unsigned int uint16_t

16-bit unsigned type.

typedef unsigned long uint32_t

32-bit unsigned type.

typedef unsigned long long uint64_t

64-bit unsigned type.

typedef unsigned char uint8_t

8-bit unsigned type.

typedef uint16_t uintptr_t

Unsigned pointer compatible type.

Automatically generated by Doxygen 1.2.18 on 23 Apr 2004.