libcoap
4.2.0
|
Bit vector manipulation. More...
#include <stdint.h>
Go to the source code of this file.
Functions | |
COAP_STATIC_INLINE int | bits_setb (uint8_t *vec, size_t size, uint8_t bit) |
Sets the bit bit in bit-vector vec . More... | |
COAP_STATIC_INLINE int | bits_clrb (uint8_t *vec, size_t size, uint8_t bit) |
Clears the bit bit from bit-vector vec . More... | |
COAP_STATIC_INLINE int | bits_getb (const uint8_t *vec, size_t size, uint8_t bit) |
Gets the status of bit bit from bit-vector vec . More... | |
Bit vector manipulation.
Definition in file bits.h.
COAP_STATIC_INLINE int bits_clrb | ( | uint8_t * | vec, |
size_t | size, | ||
uint8_t | bit | ||
) |
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).
vec | The bit-vector to change. |
size | The size of vec in bytes. |
bit | The bit to clear from vec . |
-1
if bit
does not fit into vec
, 1
otherwise. COAP_STATIC_INLINE int bits_getb | ( | const uint8_t * | vec, |
size_t | size, | ||
uint8_t | bit | ||
) |
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).
vec | The bit-vector to read from. |
size | The size of vec in bytes. |
bit | The bit to get from vec . |
1
if the bit is set, 0
otherwise. COAP_STATIC_INLINE int bits_setb | ( | uint8_t * | vec, |
size_t | size, | ||
uint8_t | bit | ||
) |
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).
vec | The bit-vector to change. |
size | The size of vec in bytes. |
bit | The bit to set in vec . |
-1
if bit
does not fit into vec
, 1
otherwise.