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///this file contains additional dynamic_bitset methods
#include "EventFilter/CSCRawToDigi/interface/bitset_append.h"
#include <iostream>
#include <cstdio>
namespace bitset_utilities {
///this method takes two bitsets bs1 and bs2 and returns result of bs2 appended to the end of bs1
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;
}
///this method takes numberOfBits bits from unsigned short * array and returns them in the bitset obj.
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;
}
///this method takes bitset obj and returns char * array
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) {
constexpr unsigned int nShorts = 30000;
unsigned char words[nShorts * 2];
bitsetToChar(bs, words);
unsigned short *buf = (unsigned short *)words;
for (int unsigned i = 0; i < bs.size() / 16 && i + 3 < nShorts; ++i) {
printf("%04x %04x %04x %04x\n", buf[i + 3], buf[i + 2], buf[i + 1], buf[i]);
i += 3;
}
}
} // namespace bitset_utilities
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