kimwalisch/segmented_sieve4.cpp

## segmented_sieve4.cpp
// sieve the current segment
for (std::size_t i = 0; i < primes.size(); i++)
{
  int64_t j = multiples[i];
  for (int64_t k = primes[i] * 2; j < segment_size; j += k)
    sieve[j] = false;
  multiples[i] = j - segment_size;
}
	// sieve the current segment
	for (std::size_t i = 0; i < primes.size(); i++)
	{
	int64_t j = multiples[i];
	for (int64_t k = primes[i] * 2; j < segment_size; j += k)
	sieve[j] = false;
	multiples[i] = j - segment_size;
	}