slides chiphogg/cppcon-2023-au-units 12Units library: basic concept // No units library: double distance_m; 1 2 3 4 5 3Units library: basic concept // With units library: Quantity double> distance; // No units library: 1 double distance_m; 2 3 4 5 3.1Units library: basic concept // With units library: Quantity distance; // No units library: 1 double distance_m; distance_m; 2 3 4 5 3.2Units library: basic concept // With units library: Quantity distance; // No units library: 1 double distance_m; 2 3 4 5 3.3Aurora InnovationAurora InnovationFlashback:

quantities and units library The future is here 2CppCon 2024: Improving our safety with a quantities and units library The future is here 3CppCon 2024: Improving our safety with a quantities and units library 2024: Improving our safety with a quantities and units library Tactical Flight Computer 5CppCon 2024: Improving our safety with a quantities and units library Tactical Flight Computer 6• A major concern safer high-level abstractions in the library CppCon 2024: Improving our safety with a quantities and units library C++ safety 7• Many C++ engineers are expected to write life-critical so�ware today • Experience

Mateusz Pusz September 15, 2020 A Physical Units Library For the Next C++CppCon 2020 | A Physical Units Library For the Next C++ Motivation, Existing Practice, Challenges... 21 Quick Start 2 Strong Experience 5 Framework Basics 6 Environment, compatibility, next steps CppCon 2020 | A Physical Units Library For the Next C++ Agenda 31 Quick Start 2 Strong Interfaces 3 As fast as (or even faster) compatibility, next steps CppCon 2020 | A Physical Units Library For the Next C++ Agenda In Q&A please refer to the slide number. 3CppCon 2020 | A Physical Units Library For the Next C++ QUICK START 4// simple

Run-Time Library (RTL) : Reference guide. Free Pascal version 3.2.2: Reference guide for RTL units. Document version 3.2.2 May 2021 Michaël Van Canneyt Contents 0.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 1 Reference for unit ’BaseUnix’ 140 1.1 Used units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 1.2 Overview . . . . . . . . . . . . . . . . . . . . . . . 239 2 Reference for unit ’Character’ 240 2.1 Used units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240 2.2 Overview .

Free Component Library (FCL): Reference guide. Reference guide for FCL units. Document version 3.2.2 May 2021 Michaël Van Canneyt Contents 0.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 1 Reference for unit ’ascii85’ 89 1.1 Used units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 1.2 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 2 Reference for unit ’AVL_Tree’ 96 2.1 Used units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 2.2 Overview

wikimedia.org/w/index.php?curid=49765027 https://www.vintagesynth.com/misc/tassman4.phpWhat do units matter?What do units matter? ...making it to Mars.Mars climat orbiter Launch December 11, 1998 Cost $327 newton-secondsWhat do units matter? … “is it supposed to make sound?”Not life and death, but audio bugs can be dangerous ● Hearing loss ● Damaged speakers ● Crashes during live performanceI tried boost::units… …and …and gave up.My journey to mp-units… https://github.com/mpusz/mp-unitsMy journey to to mp-units… ● P1386 A Standard Audio API for C++: Motivation, Scope, and Basic Design ○ Wanted standard vocabulary

Free Pascal Resource support (FCL-res): Reference guide. Reference guide for FCL-res units. Document version 3.2.2 May 2021 Giulio Bernardi Contents 0.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 1 Reference for unit ’acceleratorsresource’ 43 1.1 Used units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 1.2 Overview . . . . . . . . . . . . . . 47 1 CONTENTS 2 Reference for unit ’bitmapresource’ 48 2.1 Used units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 2.2 Overview

. . . . . . . . . . . . . . . . . . . . . . . . . . . 74 4 Generated code 75 4 CONTENTS 4.1 Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 4.2 Programs testProc end. Generates the following compiler output: malpertuus: >pp -vw testf Compiler: ppc386 Units are searched in: /home/michael;/usr/bin/;/usr/lib/ppc/0.9.1/linuxunits Target OS: Linux Compiling without ansistrings, all its functions accept shortstring arguments. The same is true for all RTL units, except the sysutils unit, which is compiled with ansistrings. However, the {$MODE} statement influences

Compiling a unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3.4 Units, libraries and smartlinking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3.5 Reducing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 9 Units that come with Free Pascal 117 9.1 Standard units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . also differs from them in the sense that you cannot use compiled units from one system for the other, i.e. you cannot use TP compiled units. Also, there is a text version of an Integrated Development Environment

battle state which will be called during the game • Creating a menu to show the player and enemy units • Creating a simple turn-based game, where each unit acts once To read this tutorial, it is "frame_height": 128} 8 }, 9 "groups": [ 10 "background", 11 "player_units", 12 "enemy_units", 13 "hud" 14 ], 15 "prefabs": { 16 "background": { 17 "properties": { 57 "texture": "male_fighter_spritesheet", 58 "group": "player_units", 59 "frame": 10, 60 "stats": { 61 "attack": 15