template<typename IteratorType>
inline bool MyClass::readRawData(
    const IteratorType& first,
    const IteratorType& last,
    typename std::iterator_traits<IteratorType>::iterator_category* = nullptr
    )
{
    _readStream.read(reinterpret_cast<char*>(&*first), (last-first)*sizeof(*first));
    return _readStream.good();
}

assert(&*last - &*first == last - first &&
    "Iterators must represent a contiguous memory region");

typename std::iterator_traits<IteratorType>::iterator_category* = nullptr

template<typename T>
bool readRawData(T* first, T* last);