7 ms·

You mean that it's not clear if copying the handle will copy the data or just create another reference? At least in the STL that's kinda clear: vector will copy

by fhd2 13y ago

You mean that it's not clear if copying the handle will copy the data or just create another reference? At least in the STL that's kinda clear: vector will copy its elements (if they are pointers, it'll copy the pointers. if they are values it'll copy all the data), shared_ptr will copy the handle pointing to the same shared object, unique_ptr is not copyable and so on. But agreed, it's opaque when working with third party code. Gotta figure out the conventions.

fauigerzigerk 13y ago
>You mean that it's not clear if copying the handle will copy the data or just create another reference? Exactly. In the STL, if it looks like a value copy it is a value copy, but the handle pattern that Stroustrup prefers gives you no clue whatsoever as to what's going to happen. You have to figure it out one class at a time.