Notes

This module defines the fastest unsigned integer type available on the target platform. Additionally, it provides a couple of useful functions.

Include

Constants

AO_UINT_BITS

AO_UINT_BITS_LOG

#define AO_UINT_BITS     (32)
#define AO_UINT_BITS_LOG (5)

The size, in bits, and the base-2 logarithm thereof.

AO_UINT_MAX

AO_UINT_MIN

#define AO_UINT_MAX (UINT32_MAX)
#define AO_UINT_MIN (0)

The maximum and minimum value.

AO_UINT_SIZE

#define AO_UINT_SIZE (4)

The size, in bytes.

Types

ao_uint_t

typedef uint32_t ao_uint_t;

Represents the fastest unsigned integer type of the target platform.

Functions

ao_clou

ao_clzu

ao_ctou

ao_ctzu

#define ao_clou(x) _clo(  x )
#define ao_clzu(x) _clz(  x )
#define ao_ctou(x) _ctz(~(x))
#define ao_ctzu(x) _ctz(  x )

Counts the number of leading or trailing ones or zeros, respectively.

ao_ffsu

ao_flsu

#define ao_ffsu(x) (     _ctz(x))
#define ao_flsu(x) (31 - _clz(x))

Finds the first or last set bit, respectively.

AO_LOG2U

#define AO_LOG2U(x) \
(                   \
    AO_LOG2U32(x)   \
)

Calculates the base-2 logarithm.

Include Next

ao_uint.h