is_ok

	# Is there a current item ?
	fun is_ok: Bool is abstract

lib/core/collection/abstract_collection.nit:782,2--783,28

	redef fun is_ok do return _iter.is_ok

lib/core/collection/abstract_collection.nit:1310,2--38

	redef fun is_ok do return _node != null

lib/core/collection/hash_collection.nit:385,2--40

	redef fun is_ok do return not current == null

lib/trees/bintree.nit:461,2--46

	redef fun is_ok do return key.y < matrix.height

lib/matrix/matrix.nit:269,2--48

	redef fun is_ok do return self.iterator.is_ok

lib/curl/curl.nit:664,2--46

	redef fun is_ok do return key_it.is_ok

lib/template/macro.nit:371,2--39

abstract fun is_ok: Bool