int main(int argc, char *argv[]) {
if (argc < 2) {
cout << "usage: BloomFilterTest <bits>\n where bits is the bit count per variable" << endl;
return 1;
}
unsigned int bits = atoi(argv[1]), wrong = 0, counter = 0;
cout << "bits=" << bits << endl;
int limit = 1000000;
// take bits as parameter
BloomFilter BF (limit, (size_t) bits, (uint32_t) time(NULL));
// insert ints 0,...,1M
for (int j=0; j<limit;j++)
BF.insert(j);
// assert 0,...,1M
for (int j=0; j<limit;j++)
assert(BF.contains(j));
for (int j=limit; j < 2*limit ;j++) {
if (BF.contains(j))
wrong++;
counter++;
}
Kmer::set_k(31);
Kmer km("ACGTACGTACGTACGTACGTACGTACGTACG");
printf("sizeof(Kmer) == %d\n", (int) sizeof(Kmer));
printf("sizeof(km) == %d\n", (int) sizeof(km));
printf("pointer cast == %p\n", (const void*) &km);
cout << "Count == " << BF.count() << endl;
cout << "Contains(km) == " << BF.contains(km) << endl;
cout << "Insert(km) == " << BF.insert(km) << endl;
BF.count();
cout << "Contains(km) == " << BF.contains(km) << endl;
assert(BF.contains(km));
BF.count();
Kmer km2("ACGTACGTACGTACGTACGTACGTACGTAGG"); // AGG vs ACG in the end
cout << "Contains(km2) == " << BF.contains(km2) << endl;
cout << "Insert(km2) == " << BF.insert(km2) << endl;
cout << "Contains(km2) == " << BF.contains(km2) << endl;
assert(BF.contains(km2));
BF.count();
FILE *fp = fopen("testBloom.bf", "wb");
BF.WriteBloomFilter(fp);
fclose(fp);
// compute false positive rate
printf("False positive ratio: %.6f\n", wrong / (0.0 + counter));
cout << &argv[0][2] << " completed successfully" << endl;
}
int main(){
BloomFilter *bf = new BloomFilter(1024);
string st1 = "this";
string st2 = "is";
string st3 = "a";
string st4 = "test";
bf->add(st1.c_str(),st1.length());
bf->add(st2.c_str(),st2.length());
cout<<"bloom filter contains \""<<st1 <<"\"" <<":"<< bf->contains(st1.c_str(), st1.length()) << endl;
cout<<"bloom filter contains \""<<st2 <<"\"" <<":"<< bf->contains(st2.c_str(), st2.length()) << endl;
cout<<"bloom filter contains \""<<st3 <<"\"" <<":"<< bf->contains(st3.c_str(), st3.length()) << endl;
cout<<"bloom filter contains \""<<st4 <<"\"" <<":"<< bf->contains(st4.c_str(), st4.length()) << endl;
}
void querySeqr(BloomFilter & myFilter, const string & seq, size_t & fHit) {
if (seq.size() < opt::kmerLen) return;
uint64_t fhVal, rhVal;
if(myFilter.contains(seq.c_str(), fhVal, rhVal)) {
#ifdef _OPENMP
#pragma omp atomic
#endif
++fHit;
}
for (size_t i = 1; i < seq.size() - opt::kmerLen + 1; i++) {
if(myFilter.contains(fhVal, rhVal, seq[i-1], seq[i+opt::kmerLen-1])) {
#ifdef _OPENMP
#pragma omp atomic
#endif
++fHit;
}
}
}
void querySeq(BloomFilter & myFilter, const string & seq, size_t & fHit) {
if (seq.size() < opt::kmerLen) return;
for (size_t i = 0; i < seq.size() - opt::kmerLen + 1; i++) {
if(myFilter.contains(seq.c_str()+i)) {
#ifdef _OPENMP
#pragma omp atomic
#endif
++fHit;
}
}
}
