bitvec.h File Reference
Bit vectors
`#include <stdint.h>`
`#include <osmocom/core/talloc.h>`
`#include <osmocom/core/defs.h>`
`#include <stdbool.h>`

Go to the source code of this file.

## Data Structures

struct | bitvec
| structure describing a bit vector More...

## Enumerations

enum | bit_value { ZERO = 0 , ONE = 1 , L = 2 , H = 3 }
| A single GSM bit. More...

## Functions

enum bit_value | bitvec_get_bit_pos (const struct bitvec *bv, unsigned int bitnr)
| check if the bit is 0 or 1 for a given position inside a bitvec More...
enum bit_value | bitvec_get_bit_pos_high (const struct bitvec *bv, unsigned int bitnr)
| check if the bit is L or H for a given position inside a bitvec More...
unsigned int | bitvec_get_nth_set_bit (const struct bitvec *bv, unsigned int n)
| get the Nth set bit inside the bit vector More...
int | bitvec_set_bit_pos (struct bitvec *bv, unsigned int bitnr, enum bit_value bit)
| set a bit at given position in a bit vector More...
int | bitvec_set_bit (struct bitvec *bv, enum bit_value bit)
| set the next bit inside a bitvec More...
int | bitvec_get_bit_high (struct bitvec *bv)
| get the next bit (low/high) inside a bitvec More...
int | bitvec_set_bits (struct bitvec *bv, const enum bit_value *bits, unsigned int count)
| set multiple bits (based on array of bitvals) at current pos More...
int | bitvec_set_u64 (struct bitvec *bv, uint64_t v, uint8_t num_bits, bool use_lh)
| set multiple bits (based on numeric value) at current pos. More...
int | bitvec_set_uint (struct bitvec *bv, unsigned int ui, unsigned int num_bits)
| set multiple bits (based on numeric value) at current pos. More...
int | bitvec_get_uint (struct bitvec *bv, unsigned int num_bits)
| get multiple bits (based on numeric value) from current pos More...
int | bitvec_find_bit_pos (const struct bitvec *bv, unsigned int n, enum bit_value val)
| find first bit set in bit vector More...
int | bitvec_spare_padding (struct bitvec *bv, unsigned int up_to_bit)
| pad all remaining bits up to a given bit number More...
int | bitvec_get_bytes (struct bitvec *bv, uint8_t *bytes, unsigned int count)
| get multiple bytes from current pos Assumes MSB first encoding. More...
int | bitvec_set_bytes (struct bitvec *bv, const uint8_t *bytes, unsigned int count)
| set multiple bytes at current pos Assumes MSB first encoding. More...
struct bitvec * | bitvec_alloc (unsigned int size, TALLOC_CTX *ctx)
| Allocate a bit vector. More...
void | bitvec_free (struct bitvec *bv)
| Free a bit vector (release its memory) More...
int | bitvec_unhex (struct bitvec *bv, const char *src)
| read hexadecimap string into a bit vector More...
unsigned int | bitvec_pack (const struct bitvec *bv, uint8_t *buffer)
| Export a bit vector to a buffer. More...
unsigned int | bitvec_unpack (struct bitvec *bv, const uint8_t *buffer)
| Copy buffer of unpacked bits into bit vector. More...
uint64_t | bitvec_read_field (struct bitvec *bv, unsigned int *read_index, unsigned int len)
| read part of the vector More...
int | bitvec_write_field (struct bitvec *bv, unsigned int *write_index, uint64_t val, unsigned int len)
| write into the vector More...
int | bitvec_fill (struct bitvec *bv, unsigned int num_bits, enum bit_value fill)
| fill num_bits with \fill starting from the current position More...
char | bit_value_to_char (enum bit_value v)
| convert enum to corresponding character More...
void | bitvec_to_string_r (const struct bitvec *bv, char *str)
| prints bit vector to provided string It's caller's responsibility to ensure that we won't shoot him in the foot: the provided buffer should be at lest cur_bit + 1 bytes long More...
void | bitvec_zero (struct bitvec *bv)
| force bit vector to all 0 and current bit to the beginnig of the vector More...
unsigned | bitvec_rl (const struct bitvec *bv, bool b)
| Return number (bits) of uninterrupted bit run in vector starting from the MSB. More...
unsigned | bitvec_rl_curbit (struct bitvec *bv, bool b, int max_bits)
| Return number (bits) of uninterrupted bit run in vector starting from the current bit. More...
void | bitvec_shiftl (struct bitvec *bv, unsigned int n)
int16_t | bitvec_get_int16_msb (const struct bitvec *bv, unsigned int num_bits)
| get multiple bits (num_bits) from beginning of vector (MSB side) More...
unsigned int | bitvec_add_array (struct bitvec *bv, const uint32_t *array, unsigned int array_len, bool dry_run, unsigned int num_bits)
| Add given array to bitvec. More...
static unsigned int | bitvec_used_bytes (const struct bitvec *bv)
| Return the number of bytes used within the bit vector. More...
static unsigned int | bitvec_tailroom_bits (const struct bitvec *bv)
| Return the tailroom in number of unused bits remaining in the bit-vector. More...