sort_changed


Description:

[ CCode ( cname = "g_sequence_sort_changed" ) ]
public void sort_changed (CompareDataFunc<G> cmp_func)

Moves the data pointed to by iter to a new position as indicated by cmp_func.

This function should be called for items in a sequence already sorted according to cmp_func whenever some aspect of an item changes so that cmp_func may return different values for that item.

cmp_func is called with two items of the seq, and cmp_data. It should return 0 if the items are equal, a negative value if the first item comes before the second, and a positive value if the second item comes before the first.

Example: Moves the data pointed to a new position as indicated by cmp_func:

public static int main (string[] args) {
Sequence<string> seq = new Sequence<string> ();
// Sorted data:
seq.append ("1. Lorem");
seq.append ("2. ipsum");
seq.append ("4. sit");
seq.append ("5. amet");


seq.append ("3. dolor");
SequenceIter<string> iter = seq.get_end_iter ().prev ();
iter.sort_changed ((a, b) => {
return strcmp (a, b);
});

// Output:
// ``1. Lorem``
// ``2. ipsum``
// ``3. dolor``
// ``4. sit``
// ``5. amet``
seq.foreach ((item) => {
print ("%s\n", item);
});

return 0;
}

valac --pkg glib-2.0 GLib.SequenceIter.sort_changed.vala

Parameters:

cmp_func

the function used to compare items in the sequence

cmp_data

user data passed to cmp_func.

iter

A SequenceIter