.. index:: single: pairing_heap(Order) .. _pairing_heap/1:

.. rst-class:: right

object

pairing_heap(Order)

• Order - Either < for a min heap or > for a max heap. Pairing heap implementation, parameterized by the order to be used to compare keys (< or >).

  | Availability: | logtalk_load(heaps(loader))

  | Author: Paulo Moura | Version: 1:0:0 | Date: 2026-01-28

  | Compilation flags: | static, context_switching_calls

  | Implements: | public :ref:`heap_protocol <heap_protocol/0>` | Extends: | public :ref:`compound <compound/0>`

  | Remarks: | (none)

  | Inherited public predicates: |  :ref:`comparingp/0::(<)/2`  :ref:`comparingp/0::(=:=)/2`  :ref:`comparingp/0::(=<)/2`  :ref:`comparingp/0::(=\=)/2`  :ref:`comparingp/0::(>)/2`  :ref:`comparingp/0::(>=)/2`  :ref:`heap_protocol/0::as_heap/2`  :ref:`heap_protocol/0::as_list/2`  :ref:`termp/0::check/1`  :ref:`heap_protocol/0::delete/4`  :ref:`termp/0::depth/2`  :ref:`heap_protocol/0::empty/1`  :ref:`termp/0::ground/1`  :ref:`heap_protocol/0::insert/4`  :ref:`heap_protocol/0::insert_all/3`  :ref:`heap_protocol/0::merge/3`  :ref:`termp/0::new/1`  :ref:`termp/0::numbervars/1`  :ref:`termp/0::numbervars/3`  :ref:`termp/0::occurs/2`  :ref:`termp/0::singletons/2`  :ref:`heap_protocol/0::size/2`  :ref:`termp/0::subsumes/2`  :ref:`termp/0::subterm/2`  :ref:`heap_protocol/0::top/3`  :ref:`heap_protocol/0::top_next/5`  :ref:`termp/0::valid/1`  :ref:`termp/0::variables/2`  :ref:`termp/0::variant/2`  :ref:`termp/0::varnumbers/2`  :ref:`termp/0::varnumbers/3`  

  .. contents:: :local: :backlinks: top

Public predicates

(no local declarations; see entity ancestors if any)

Protected predicates

(no local declarations; see entity ancestors if any)

Private predicates

(no local declarations; see entity ancestors if any)

Operators

(none)

.. seealso::

:ref:`pairing_heap_min <pairing_heap_min/0>`, :ref:`pairing_heap_max <pairing_heap_max/0>`