Mercurial > vim
view runtime/macros/maze/poster @ 10658:77d66e9ac0ab v8.0.0219
patch 8.0.0219: ubsan reports errors for overflow
commit https://github.com/vim/vim/commit/7a40ea2138102545848ea86a361f1b8dec7552b5
Author: Bram Moolenaar <Bram@vim.org>
Date: Sun Jan 22 18:34:57 2017 +0100
patch 8.0.0219: ubsan reports errors for overflow
Problem: Ubsan reports errors for integer overflow.
Solution: Define macros for minimum and maximum values. Select an
expression based on the value. (Mike Williams)
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Sun, 22 Jan 2017 18:45:04 +0100 |
parents | 3fc0f57ecb91 |
children |
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Article 2846 of alt.sources: Path: oce-rd1!hp4nl!mcsun!uunet!munnari.oz.au!metro!otc!gregm From: gregm@otc.otca.oz.au (Greg McFarlane) Newsgroups: alt.sources Subject: VI SOLVES MAZE (commented macros) Message-ID: <2289@otc.otca.oz> Date: 10 Feb 91 23:31:02 GMT Sender: news@otc.otca.oz Reply-To: gregm@otc.otca.oz.au (Greg McFarlane) Organization: OTC Development Unit, Australia Lines: 464 Submitted-by: gregm@otc.otca.oz.au Archive-name: maze_solving_vi_macros A real working model. See it walk the maze in front of your very own eyes. To prove that you can do anything in vi, I wrote a couple of macros that allows vi to solve mazes. It will solve any maze produced by maze.c that was posted to the alt.sources last month. (Maze.c is also included in this posting as well as an example of its output.) The uncommented version of the macros was sent to alt.sources last month. However, so many people mailed me requesting the commented version of the macros that I decided to post it. I have made some modifications to the original macros to make them easier to follow and also after I learnt that you can escape the special meaning of '|' in macros by using '^V|'. Save this article and unshar it. Then read maze.README. After studying these macros, anyone who cannot write an emacs emulator in vi macros should just curl up and :q!. Coming soon to a newsgroup near you: "Vi macros solve Tower of Hanoi", and a repost of the original "Turing Machine implemented in Vi macros" Anyone who has a version of these macros for edlin or nroff, please post.