Mercurial > hg > Applications > Grep
annotate c/regexParser/bitVector.cc @ 98:d0d2262d4edf impl-bitvector
implement if (NodeChar == '+')
author | Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp> |
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date | Tue, 10 Nov 2015 18:08:53 +0900 |
parents | 43b807f88961 |
children | 70069d4647a0 |
rev | line source |
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add bitVector
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 BitVectorPtr bitSet(int bitSetPosition) { |
43b807f88961
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11 |
43b807f88961
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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12 BitVectorPtr bi = (BitVectorPtr)malloc(sizeof(BitVector)); |
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13 bi->bitContainer = (unsigned long*)malloc(sizeof(unsigned long)*bi->arrayNum); |
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14 |
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15 bi->arrayNum = (bitSetPosition + 1) / bitBlock; |
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16 if (((bitSetPosition + 1) % bitBlock) != 0) bi->arrayNum++; |
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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17 |
43b807f88961
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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18 for (int i = 0; i < bi->arrayNum; i++) { |
43b807f88961
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19 bi->bitContainer[i] = 0; |
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20 } |
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21 unsigned long tmp = 1; |
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22 int arrayPosition = 0; |
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23 |
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24 arrayPosition = bitSetPosition / bitBlock; |
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25 bitSetPosition = bitSetPosition % bitBlock; |
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26 |
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27 tmp = tmp << (bitBlock - 1 - bitSetPosition); |
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28 bi->bitContainer[arrayPosition] = bi->bitContainer[arrayPosition] | tmp; |
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parents:
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29 |
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30 return bi; |
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31 } |
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32 |
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33 void bitPrint(BitVectorPtr bi) { |
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34 for (int i = 0; i < bi->arrayNum ; i++) { |
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35 for (int j = bitBlock - 1; j >= 0; j--) { |
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36 printf( "%lu", ( bi->bitContainer[i] >> j ) & 1 ); |
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37 } |
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38 printf(" "); |
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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39 } |
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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40 puts(""); |
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41 } |