Ada Programming/Libraries/Ada.Iterator Interfaces

Ada.Iterator_Interfaces __TOC__ Ada Iterator_Interfaces is a unit of the Predefined Language Environment since Ada 2012. Specification Standard Ada library specification Copyright (c) 2004-2016 AXE Consultants Copyright (c) 2004, 2005, 2006 Ada-Europe Copyright (c) 2000 The MITRE Corporation, Inc. Copyright (c) 1992, 1993, 1994, 1995 Intermetrics, Inc. SPDX-License-Identifier: BSD-3-Clause and LicenseRef-AdaReferenceManual ------------------------------------------------------------------------- generic type Cursor; with function Has_Element (Position : Cursor) return Boolean; package Ada Iterator_Interfaces is pragma Pure (Iterator_Interfaces); type Forward_Iterator is limited interface; function First (Object : Forward_Iterator) return Cursor is abstract; function Next (Object : Forward_Iterator; Position : Cursor) return Cursor is abstract; type Reversible_Iterator is limited interface and Forward_Iterator; function Last (Object : Reversible_Iterator) return Cursor is abstract; function Previous (Object : Reversible_Iterator; Position : Cursor) return Cursor is abstract; end Adadot .Iterator_Interfaces; See also Wikibook Ada Programming/Libraries/Ada Ada Reference Manual Ada 2012 5 5 1 User-Defined Iterator Types Open-Source Implementations a-iteint.ads a-iteint.ads