Like glib.sequence.Sequence.sort, but uses a #GSequenceIterCompareFunc instead
of a #GCompareDataFunc as the compare function
cmp_func is called with two iterators pointing into seq. It should
return 0 if the iterators are equal, a negative value if the first
iterator comes before the second, and a positive value if the second
iterator comes before the first.
Like glib.sequence.Sequence.sort, but uses a #GSequenceIterCompareFunc instead of a #GCompareDataFunc as the compare function
cmp_func is called with two iterators pointing into seq. It should return 0 if the iterators are equal, a negative value if the first iterator comes before the second, and a positive value if the second iterator comes before the first.