HRFunc

Specifies the type of the function passed to foreach_remove.

It is called with each key/value pair, together with the user_data parameter passed to foreach_remove. It should return true if the key/value pair should be removed from the GenericSet.

Parameters:

key	a key
value	the value associated with the key
user_data	user data passed to remove

Returns:

true if the key/value pair should be removed from the GenericSet