GLib.HashTableIter

Fields

Name	Type	Access	Description
dummy1	object	r
dummy2	object	r
dummy3	object	r
dummy4	int	r
dummy5	bool	r
dummy6	object	r

Methods

	init (hash_table)
	next ()
	remove ()
	replace (value)
	steal ()

Details

class GLib.HashTableIter

A GLib.HashTableIter structure represents an iterator that can be used to iterate over the elements of a GLib.HashTable. GLib.HashTableIter structures are typically allocated on the stack and then initialized with GLib.HashTableIter.init().

The iteration order of a GLib.HashTableIter over the keys/values in a hash table is not defined.

init(hash_table)

Parameters:

hash_table ({object: object}) – a GLib.HashTable

Initializes a key/value pair iterator and associates it with hash_table. Modifying the hash table after calling this function invalidates the returned iterator.

The iteration order of a GLib.HashTableIter over the keys/values in a hash table is not defined.

GHashTableIter iter;
gpointer key, value;

g_hash_table_iter_init (&iter, hash_table);
while (g_hash_table_iter_next (&iter, &key, &value))
  {
    // do something with key and value
  }

New in version 2.16.

next()

Returns:

False if the end of the GLib.HashTable has been reached.

key:

a location to store the key

value:

a location to store the value

Return type:

(bool, key: object, value: object)

Advances self and retrieves the key and/or value that are now pointed to as a result of this advancement. If False is returned, key and value are not set, and the iterator becomes invalid.

New in version 2.16.

remove()

Removes the key/value pair currently pointed to by the iterator from its associated GLib.HashTable. Can only be called after GLib.HashTableIter.next() returned True, and cannot be called more than once for the same key/value pair.

If the GLib.HashTable was created using g_hash_table_new_full(), the key and value are freed using the supplied destroy functions, otherwise you have to make sure that any dynamically allocated values are freed yourself.

It is safe to continue iterating the GLib.HashTable afterward:

while (g_hash_table_iter_next (&iter, &key, &value))
{
  if (condition)
    g_hash_table_iter_remove (&iter);
}

New in version 2.16.

replace(value)

Parameters:

value (object or None) – the value to replace with

Replaces the value currently pointed to by the iterator from its associated GLib.HashTable. Can only be called after GLib.HashTableIter.next() returned True.

If you supplied a value_destroy_func when creating the GLib.HashTable, the old value is freed using that function.

New in version 2.30.

steal()

Removes the key/value pair currently pointed to by the iterator from its associated GLib.HashTable, without calling the key and value destroy functions. Can only be called after GLib.HashTableIter.next() returned True, and cannot be called more than once for the same key/value pair.

New in version 2.16.