.. index:: single: derangements .. _derangements/0:

.. rst-class:: right

object

derangements

Implementation of derangement operations over lists.

| Availability: | logtalk_load(derangements(loader))

| Author: Paulo Moura | Version: 1:0:0 | Date: 2026-05-12

| Compilation flags: | static, context_switching_calls

| Implements: | public :ref:`derangements_protocol <derangements_protocol/0>` | Uses: | :ref:`fast_random(Algorithm) <fast_random/1>` | :ref:`list <list/0>` | :ref:`natural <natural/0>` | :ref:`permutations <permutations/0>`

| Remarks: | (none)

| Inherited public predicates: |  :ref:`derangements_protocol/0::count_derangements/2`  :ref:`derangements_protocol/0::count_distinct_derangements/2`  :ref:`derangements_protocol/0::count_partial_derangements/3`  :ref:`derangements_protocol/0::derangement/2`  :ref:`derangements_protocol/0::derangement/3`  :ref:`derangements_protocol/0::derangement_index/3`  :ref:`derangements_protocol/0::derangement_index/4`  :ref:`derangements_protocol/0::derangements/2`  :ref:`derangements_protocol/0::derangements/3`  :ref:`derangements_protocol/0::distinct_derangement/2`  :ref:`derangements_protocol/0::distinct_derangement/3`  :ref:`derangements_protocol/0::distinct_derangement_index/3`  :ref:`derangements_protocol/0::distinct_derangements/2`  :ref:`derangements_protocol/0::distinct_derangements/3`  :ref:`derangements_protocol/0::next_derangement/3`  :ref:`derangements_protocol/0::nth_derangement/3`  :ref:`derangements_protocol/0::nth_derangement/4`  :ref:`derangements_protocol/0::nth_distinct_derangement/3`  :ref:`derangements_protocol/0::previous_derangement/3`  :ref:`derangements_protocol/0::random_derangement/2`  :ref:`derangements_protocol/0::random_distinct_derangement/2`  :ref:`derangements_protocol/0::sample_derangements/3`  :ref:`derangements_protocol/0::sample_distinct_derangements/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)