Doubly-linked list/Element removal: Difference between revisions

The user must type in the monitor the following command after compilation and before running the program!<pre>SET EndProg=*</pre>

{{libheader|Action! Tool Kit}}

INCLUDE "D2:ALLOCATE.ACT" ;from the Action! Tool Kit. You must type 'SET EndProg=*' from the monitor after compiling, but before running this program!

TestRemove(listEnd)

TestRemove(listBegin)

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[https://gitlab.com/amarok8bit/action-rosetta-code/-/raw/master/images/Doubly-linked_list_element_removal.png Screenshot from Atari 8-bit computer]

=={{header|Ada}}==

with Ada.Text_Io;

Print_List (List);

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<pre>cat dog hen horse

=={{header|ALGOL W}}==

Uses the element type and insertion method as in the [[Doubly-Linked List (traversal)]] task.

% record type to hold an element of a doubly linked list of integers %

record DListIElement ( reference(DListIElement) prev

end while_e_ne_null

end

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<pre>

=={{header|Go}}==

Using the doubly-linked list from the container/list package and the Wren example:

import (

dll.Remove(e1) // remove "dog"

printDll("After removal 2", dll)

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=={{header|Julia}}==

Uses code from [[Doubly-Linked List (traversal)]]

value::T

pred::Union{DLNode{T}, Nothing}

delete(node2)

println("Then deleting node2 yields: "); printconnected(node1)

<pre>

From beginning to end: 1 -> 2 -> 3 -> 4

=={{header|Nim}}==

This is a simplified version of code from [[Doubly-Linked List (traversal)]]

DoublyLinkedList[T] = object

echo l

l.remove c

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=={{header|Phix}}==

Extended copy of [[Doubly-linked_list/Traversal#Phix]]

<span style="color: #008080;">enum</span> <span style="color: #000000;">NEXT</span><span style="color: #0000FF;">,</span><span style="color: #000000;">PREV</span><span style="color: #0000FF;">,</span><span style="color: #000000;">DATA</span>

<span style="color: #008080;">constant</span> <span style="color: #000000;">empty_dll</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{{</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #000000;">1</span><span style="color: #0000FF;">}}</span>

<span style="color: #000000;">show</span><span style="color: #0000FF;">(</span><span style="color: #000000;">PREV</span><span style="color: #0000FF;">)</span>

<span style="color: #008080;">end</span> <span style="color: #008080;">while</span>

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<pre>

=={{header|Wren}}==

{{libheader|Wren-llist}}

var dll = DLinkedList.new(["dog", "cat", "bear"])

System.print("After removal 1: %(dll)")

dll.removeAt(0) // remove by index

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