I could not figure out, from https://developer.gnome.org/glib/stable/glib-Sequences.html, whether the caller is supposed to do anything about freeing memory related to the pointers returned by g_sequence_lookup or not.

From #gtk+:

17:54 <rbasak> Do functions like g_sequence_lookup_iter require the pointers they returned to be freed? I don't see anything documented at https://developer.gnome.org/glib/stable/glib-Sequences.html, nor any free functions, but I don't see how state can be stored in any other way.
17:55 <rbasak> Is there some higher level documentation on memory management I'm missing here?

18:01 <@ebassi> rbasak: The API reference should make it clear whether or not the returned value ownership is transfered to the caller or not

18:01 <@ebassi> rbasak: If it doesn't, please: file a bug

18:03 <@ebassi> (In this specific case, the iterator is owned by the GSequence so you should not free it)

18:15 <rbasak> ebassi: OK. Thanks!