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annotate c/regexParser/bitVector.cc @ 110:a3adc5c24e19 pairPro

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author masa
date Fri, 20 Nov 2015 21:02:00 +0900
parents 70069d4647a0
children ca30f8334741
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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1 #include <stdio.h>
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2 #include <stdlib.h>
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3 #include <string.h>
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4 #include "bitVector.h"
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5
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6 void bitPrint(BitVectorPtr bi);
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7
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8 int bitBlock = sizeof(unsigned long) * 8;
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9
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10 BitVectorListPtr createBitVector(NodePtr n,BitVectorListPtr bvl) {
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11 BitVectorListPtr nextBvl = allocateBitVectorList();
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12 nextBvl->bi = bitSet(n->nodeNumber);
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13 nextBvl->initBvl = initBvl;
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14 return nextBvl;
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15 }
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16
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17 BitVectorPtr createBitVector(int bitSetPosition) {
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18
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19 BitVectorPtr bi = (BitVectorPtr)malloc(sizeof(BitVector));
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20 if (bi == NULL) {
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21 fprintf(stderr, "Failed to allocate memory.\n");
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22 exit(-1);
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23 }
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25 bi->bitContainer = (unsigned long*)malloc(sizeof(unsigned long)*bi->arrayNum);
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26 if (bi->bitContainer == NULL) {
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27 fprintf(stderr, "Failed to allocate memory.\n");
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28 exit(-1);
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29 }
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31 for (int i = 0; i < bi->arrayNum; i++) {
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32 bi->bitContainer[i] = 0;
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33 }
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34
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35 return bi;
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36 }
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37
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38 BitVectorPtr bitSet(BitVectorPtr bi, int bitSetPosition) {
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40 bi->arrayNum = (bitSetPosition + bitBlock - 1) / bitBlock;
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41
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42 int arrayPosition = bitSetPosition / bitBlock;
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43
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44 unsigned long tmp = 1 << (bitSetPosition % bitBlock);
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45 bi->bitContainer[arrayPosition] = bi->bitContainer[arrayPosition] | tmp;
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46
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47 return bi;
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48 }
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49
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50 void bitPrint(BitVectorPtr bi) {
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51 for (int i = 0; i < bi->arrayNum ; i++) {
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52 unsigned long vec = bi->bitContainer[i];
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53 for (int j = 0; j < bitBlock; j++) {
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54 printf( "%lu", vec & 1 );
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55 vec >>= 1;
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56 }
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57 printf(" ");
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58 }
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59 puts("");
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60 }