Method start

Bcore/src/main/cpp/Dobby/tests/catch.hpp:10488–10490

}

void Timer::start() {
  m_nanoseconds = getCurrentNanosecondsSinceEpoch();
}
auto Timer::getElapsedNanoseconds() const -> uint64_t {
  return getCurrentNanosecondsSinceEpoch() - m_nanoseconds;
}