bits.h File Reference

Bit vector manipulation. More...

#include <stdint.h>

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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

bits_clrb()

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 52 of file bits.h.

bits_getb()

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 71 of file bits.h.

bits_setb()

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 32 of file bits.h.