bits.h File Reference

bit vector manipulation More...

#include <sys/types.h>
#include <stdint.h>

Go to the source code of this file.

Functions
static int	bits_setb (uint8_t *vec, size_t size, uint8_t bit)
	Sets the bit bit in bit-vector vec. More...
static int	bits_clrb (uint8_t *vec, size_t size, uint8_t bit)
	Clears the bit bit from bit-vector vec. More...
static int	bits_getb (const uint8_t *vec, size_t size, uint8_t bit)
	Gets the status of bit bit from bit-vector vec. More...

Detailed Description

bit vector manipulation

Definition in file bits.h.

Function Documentation

static int bits_clrb ( uint8_t *  vec, size_t  size, uint8_t  bit  )

inlinestatic

Clears the bit bit from bit-vector vec.

This function returns 1 if bit was cleared or -1 on error (i.e. when the given bit does not fit in the vector).

Parameters

vec	The bit-vector to change.
size	The size of vec in bytes.
bit	The bit to clear from vec.

Returns

-1 if bit does not fit into vec, 1 otherwise.

Definition at line 53 of file bits.h.

static int bits_getb ( const uint8_t *  vec, size_t  size, uint8_t  bit  )

inlinestatic

Gets the status of bit bit from bit-vector vec.

This function returns 1 if the bit is set, 0 otherwise (even in case of an error)..

Parameters

vec	The bit-vector to read from..
size	The size of vec in bytes.
bit	The bit to get from vec.

Returns

1 if the bit is set, 0 otherwise.

Definition at line 72 of file bits.h.

static int bits_setb ( uint8_t *  vec, size_t  size, uint8_t  bit  )

inlinestatic

Sets the bit bit in bit-vector vec.

This function returns 1 if bit was set or -1 on error (i.e. when the given bit does not fit in the vector).

Parameters

vec	The bit-vector to change.
size	The size of vec in bytes.
bit	The bit to set in vec.

Returns

-1 if bit does not fit into vec, 1 otherwise.

Definition at line 33 of file bits.h.