iter_is_valid

Description:

public bool iter_is_valid (TreeIter iter)
Note:

This function is slow. Only use it for debugging and/or testing purposes.

Checks if the given iter is a valid iter for this `GtkTreeModelSort`.

Parameters:

this

A `GtkTreeModelSort`.
iter

A `GtkTreeIter`

Returns:

true if the iter is valid, false if the iter is invalid.