Making Games Start Fast A Story About ConcurrencyOnce upon a time, in the early 2000s...We had a small clock speed cap issue...But the solution was easy! Core 🔥🔥🔥 Core 1 Core 2 Core 3 Core 4The gains could be achieved by refactoring to lock free ◉ But we already reduced from 6.8s to 1.1s 61Making it a problem for the future Going Asynchronous 4 622.7 (Old) Startup CPU UsageSurprise gains ◉

DoTheThing(in BlubT b); Result: Windows – everything passed. Linux – everything failed. Why?Making Libraries Consumable for Non-C++ Developers Aaron R Robinson arobins@microsoft.com https://github

scopeof this talk. • This talk aims to include a historical perspective. However, all of the decision making described is alleged, I wasn’t there.  6PART 0: WHAT ARE EXCEPTIONS 7• A fail-handling mechanism well as hosted environments. • The overhead already exists, so adding a customizability to the framework (in the current state of things) can only increase the number of users. 48PART V: WHAT’S NEXT

often stateless.  In the past, we’d have to do a lot of metaprogramming to make a compile-time decision to use an alternative implementation to potentially get this optimization through the empty base by Stephen C. Dewhurst and Daniel Saks 11 What Could Possibly Go Wrong?  Just be careful about making layout assumptions. class Flatland { public: auto operator <=>(const Flatland &rhs) const Dewhurst and Daniel Saks 33 Improper Use of void *  Does this ever happen? Yes.  Consider a “framework” for setting and getting a Widget. typedef void *Widget; // improper use of typedef... void

applicative is all you need. You only need a monad if you need to make a decision on You only need a monad if you need to make a decision on which parser to run based on what was parsed before. which parser applicative is all you need. You only need a monad if you need to make a decision on You only need a monad if you need to make a decision on which parser to run based on what was parsed before. which parser I'm pretty sure the authors of P2300 made a conscious decision to excise any functional I'm pretty sure the authors of P2300 made a conscious decision to excise any functional terms from their vocabulary

a mostly self-contained unit. ● Don’t use a TS simply to delay; it doesn’t simplify later decision making. Have a concrete and articulated criteria for completion. TS vs IS: question TS should answer design proposals? ● Is the proposal complicated or large that you fear there will be error in design decision ● Is it a research idea? ● Is there substantial invention? ● Can it be staged? ● Is there a subpart cases an SG vs TS vs IS continuum needs to be considered ● Please weigh our opinion as part of your decision process ● direction@lists.isocpp.org. © 2021. 13 What is in Concurrency TS2? • Several synchronization

being created ○ Objects are moving around ○ Artificial intelligence (path finding and other decision making) ○ In-game resource management is taking place 12 Command and Conquer Red AlertReal time being created ○ Objects are moving around ○ Artificial intelligence (path finding and other decision making) ○ In-game resource management is taking place 13 Command and Conquer Red Alert For today’s

language) was instrumental in my start in getting excited about programming ○ (And later informed my decision to study computer science) ● I can still remember reading the programming manuals that came that begin with an underscore are reserved for something special -- the underscore intentionally making it harder to type.Function Basics - Parts of a Function (3/6) 30 The next part of a function are ‘constexpr’ used on the return type qualifier. 81 https://godbolt.org/z/hhxcWj6Gq ● Note that making something ‘constexpr’ also implies it is inline -- you have the computed value! ● Core Guideline(s):

initialization Using a common vocabulary type for these cases raises the level of abstraction, making it easier for others to understand what your code is doing.2023 Victor Ciura | @ciura_victor shallow operator== might be really confusing to users (especially because of string_view) final decision was to REMOVE operator== completely wg21.link/p1085 Should Span be Regular?2023 Victor Ciura shallow operator== might be really confusing to users (especially because of string_view) final decision was to REMOVE operator== completely wg21.link/p1085 Should Span be Regular?2023 Victor Ciura