template <class T>
class VectorWriteProxy {
public:
	_FORCE_INLINE_ T &operator[](int p_index) {
		CRASH_BAD_INDEX(p_index, ((Vector<T> *)(this))->_cowdata.size());

		return ((Vector<T> *)(this))->_cowdata.ptrw()[p_index];
	}
};

template <class T>
class Vector {
	friend class VectorWriteProxy<T>;

public:
	VectorWriteProxy<T> write;

	// ...
};