From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.5-pre1 (2020-06-20) on ip-172-31-74-118.ec2.internal X-Spam-Level: X-Spam-Status: No, score=-1.9 required=3.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.5-pre1 Path: eternal-september.org!reader02.eternal-september.org!aioe.org!yy9MKEJN2ULhWGfnfq4v5w.user.gioia.aioe.org.POSTED!not-for-mail From: Simon Wright Newsgroups: comp.lang.ada Subject: Re: can't understand how to move a node of a linked list to another place on the same Date: Thu, 18 Feb 2021 20:56:01 +0000 Organization: Aioe.org NNTP Server Message-ID: References: <1b206764-967c-4b1b-af9c-61a0cd0750fcn@googlegroups.com> <84c3e8ee-e4e9-4402-8da6-e43a44eca66bn@googlegroups.com> NNTP-Posting-Host: yy9MKEJN2ULhWGfnfq4v5w.user.gioia.aioe.org Mime-Version: 1.0 Content-Type: text/plain X-Complaints-To: abuse@aioe.org User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (darwin) Cancel-Lock: sha1:lHNbn/wD3mOuNBB2Ravq+bvbOpE= X-Notice: Filtered by postfilter v. 0.9.2 Xref: reader02.eternal-september.org comp.lang.ada:61379 List-Id: Mehdi Saada <00120260a@gmail.com> writes: > insertion_A_on_place_b(List, List.next); I think your algorithm works provided that Before_A and Before_B aren't too close together; i.e. if Before_A.Next is equal to Before_B.