Is there a problem trying to create a concatenate that returns an Arrayview?

1. I created a concatenate function that returns an arrayview. 
2. There are ndarrays a, b with contiguous memory layout.
3. If I concatenate a and b, will I create an arrayview with two contiguous memory layouts?  
4. Is this a bad use?

I used to think this because of my computer's memory issues, but I've learned that most of the time, my thoughts aren't good...Is this a bad idea..?