/data/refman/pasoursint/CMSSW_4_1_8_patch9/src/EventFilter/CSCRawToDigi/src/bitset_append.cc

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#include "EventFilter/CSCRawToDigi/src/bitset_append.h" 
#include <iostream>
#include <cstdio>

namespace bitset_utilities {

  boost::dynamic_bitset<> append(const boost::dynamic_bitset<> & bs1, 
                                 const boost::dynamic_bitset<> & bs2)
  {
    boost::dynamic_bitset<> result(bs1.size()+bs2.size());
    unsigned size1 = bs1.size();
    for(unsigned i = 0; i < size1; ++i)
      {
        result[i] = bs1[i];
      }
    for(unsigned i = 0; i < bs2.size(); ++i)
      {
        result[size1+i] = bs2[i];
      }
    return result;
  }

  boost::dynamic_bitset<> ushortToBitset(const unsigned int numberOfBits,
                                         unsigned short * buf)
  {
    boost::dynamic_bitset<> result(numberOfBits);
    for(unsigned i = 0; i < result.size(); ++i)
      {
        result[i] = (buf[i/16]>>(i%16)) & 0x1;
      }
    return result;
  }


  void bitsetToChar(const boost::dynamic_bitset<> & bs, unsigned char * result)
  {
    for(unsigned i = 0; i < bs.size(); ++i)
      {
        result[i/8] =  (bs[i+7]<<7)+
          (bs[i+6]<<6)+
          (bs[i+5]<<5)+
          (bs[i+4]<<4)+ 
          (bs[i+3]<<3)+
          (bs[i+2]<<2)+
          (bs[i+1]<<1)+
          bs[i];
        i+=7;
      }
  }

  void printWords(const boost::dynamic_bitset<> & bs) 
  {
    unsigned char words[60000];
    bitsetToChar(bs, words);
    unsigned short * buf= (unsigned short *) words;
    for (int unsigned i=0;i<bs.size()/16;++i) {
      printf("%04x %04x %04x %04x\n",buf[i+3],buf[i+2],buf[i+1],buf[i]);
      i+=3;
    }
  }
}