[riot-notifications] [RIOT] fib: repaired prefix/default gateway handling and added two according unittests (#3233)
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Wed Jun 24 00:00:33 CEST 2015
> 1) Why is ng_ndp passing NULL to fib_get_next_hop? => @authmillenon ?
@cgundogan looks like an error to me :-). Good catch. The more interesting question is: How should I handle this? It's far more efficient in this function for `next_hop_ip` to be a pointer (I don't want to use memcpy for all the other cases, a pointer (16-/32-bit) is far smaller than a full IPv6 address (128-bit), and the rest of it is basically relying on it to be a pointer). Should I introduce some temporary variable (additional 16-bit), just for that? Or could we change the `next_hop` parameter of `fib_get_next_hop()` maybe to a pointer of a pointer. That would also be in line with the rest of those parameters and it would probably also make the fib more efficient since you can just return a pointer to its internal memory, instead of copying it.
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