Edward Grace wrote:
Hi Rutger,
I'm not sure I understand. Perhaps because, I'm guessing, you don't understand what the
B(tgt{:}) = A(src{:})
is doing -- it took me a while to figure out when I first saw it. Can you confirm that you are happy with the following - src on the left tgt on the right?
I think I understood. Although the statement looks powerful, I think it is a bit of "cheating" because setting up the index vectors tgt and src is done in a loop, by dimension.
How would *you* do this, elegantly, in C++? That's a genuine question -- I'm curious because, quite frankly, it's foxed me for ages and I would like to do this in C++! ;-)
I would say this is a typical example that I would solve by recursion. For the case of a nested std::vector, please see attached. Uncomment lines in main for other dimensions, to see that working. Add some more goodies for sizes and stuff and you're done for any arbitrary nesting and/or dimension of data. Not sure if it is the the most elegant solution, though. Cheers, Rutger