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bitvector.c File Reference

#include "util.h"
#include "bitvector.h"

Functions

int32_t aw_bitvector_andmerge (aw_bitvector_t *bv1, aw_bitvector_t *bv2)
 Bitwise AND bv2 into bv1 (bv1 is changed).

aw_bitvector_t * aw_bitvector_create (u_int32_t nbits)
 Create a bitvector to accomidate 'n' bits.

void aw_bitvector_destroy (aw_bitvector_t *bv)
 Freeup resources for a bitvector.

int32_t aw_bitvector_findfirstbit (u_int32_t start_index, aw_bitvector_t *bv)
 Finds index of the first 1 from the starting bit index.

int32_t aw_bitvector_ormerge (aw_bitvector_t *bv1, aw_bitvector_t *bv2)
 Bitwise OR bv2 into bv1 (bv1 is changed).


Function Documentation

int32_t aw_bitvector_andmerge (  aw_bitvector_t *  bv1,
aw_bitvector_t *  bv2
) 
 

Bitwise AND bv2 into bv1 (bv1 is changed).

aw_bitvector_andmerge

Parameters:
bv1 Bitvector
bv2 Bitvector
Returns:
0 on success, non-zero if bv1->vectorsize != bv2->vectorsize

aw_bitvector_t* aw_bitvector_create (  u_int32_t  nbits  ) 
 

Create a bitvector to accomidate 'n' bits.

Changes:

03/23/2004 Russell Leighton Added merge funtions

void aw_bitvector_destroy (  aw_bitvector_t *  bv  ) 
 

Freeup resources for a bitvector.

aw_bitvector_destroy

Parameters:
bv Bitvector object to free

int32_t aw_bitvector_findfirstbit (  u_int32_t  start_index,
aw_bitvector_t *  bv
) 
 

Finds index of the first 1 from the starting bit index.

aw_bitvector_findfirstbit

Parameters:
start_index Bit position to start search
bv Bitvector
Returns:
0 on success, non-zero if no 1's found

int32_t aw_bitvector_ormerge (  aw_bitvector_t *  bv1,
aw_bitvector_t *  bv2
) 
 

Bitwise OR bv2 into bv1 (bv1 is changed).

aw_bitvector_ormerge

Parameters:
bv1 Bitvector
bv2 Bitvector
Returns:
0 on success, non-zero if bv1->vectorsize != bv2->vectorsize

Aware 0.11.1 Copyright (C) 1998-2005 Russell Leighton (russ@elegant-software.com)