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annotate c/bitVector/main.cc @ 49:f76fe618d5a7

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implement bitset
author Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
date Mon, 25 May 2015 20:46:26 +0900
parents 010ae96a3e4e
children bb0e88fbbe02
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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89a198fa6b23 add dfrTobin
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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1 #include <stdio.h>
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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2 #include <stdlib.h>
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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3 #include <string.h>
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4
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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5 unsigned long bitContainer = 0x0000000000000000;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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6 unsigned long bitMask = 0xFFFFFFFFFFFFFFFF;
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7
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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8 void bitSet(unsigned int bitShiftNum) {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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9 bitContainer = 1 ;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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10 bitContainer = bitContainer << (63 - bitShiftNum);
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11
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12 for (int i = 63; i >= 0; i--) {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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13 printf( "%lu", ( bitContainer >> i ) & 1 );
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14 }
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15 puts("");
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16 }
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17
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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18 void bitGet() {
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19
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20 }
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21
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22 int main(int argc, char **argv) {
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23
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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24 unsigned int bitShiftNum = 0;
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25 for (int i = 1; i < argc ; i++) {
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26 if (strcmp(argv[i],"-n") == 0) {
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27 bitShiftNum = atoi(argv[i+1]);
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28 }
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29 }
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30
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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31 bitSet(bitShiftNum);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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32 return 0;
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33 }