Profiling Zoo holistic (automatic) issues: information overload; profiling overhead (skew) selective (manual) Sampling callstack snapshot probing system-wide automatic (regular intervals) OS kernel events Profiling Zoo holistic (automatic) issues: information overload; profiling overhead (skew) selective (manual) Sampling callstack snapshot probing system-wide automatic (regular intervals) OS kernel events TracyClient.cpp TracyClient.cpp TracyClient.cpp TracyClient.cpp Behold the Tracy Multiverse! (Tracy Manual, Section 2.1.5)18 Tracy integration across shared libraries tracy (shared library) TracyClient

Profiling Zoo holistic (automatic) issues: information overload; profiling overhead (skew) selective (manual) Sampling callstack snapshot probing system-wide automatic (regular intervals) OS kernel events Profiling Zoo holistic (automatic) issues: information overload; profiling overhead (skew) selective (manual) Sampling callstack snapshot probing system-wide automatic (regular intervals) OS kernel events ZoneScoped; ... } ... { ZoneScoped; ... } }23 Tracy manual, Section 3.1 Tracy Zoning 101 int foo() { ZoneScoped; ... if (!spoon) { Zo

thought I knew about monads until you just said that, now I'm not so sure… Well, I thought I knew about monads until you just said that, now I'm not so sure… 7OR MAYBE THIS…? OR MAYBE THIS…? Well, I thought thought I knew about monads until you just said that, now I'm not so sure… Well, I thought I knew about monads until you just said that, now I'm not so sure… Don't worry about what a 13bind bind IN HASKELL IN HASKELL bind bind is spelt is spelt (>>=) (>>=) (>>=) :: m a -> (a -> m b) -> m b 14fmap fmap + + join join = = bind bind When we try to When we try to fmap fmap

library: double distance_m; 1 2 3 4 5 3Units library: basic concept // With units library: Quantity distance; // No units library: 1 double distance_m; 2 3 4 5 3.1Units library: library: 1 double 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 library const double dist_to_goal_m = 30.0; const double speed_mph = 25.0; const double speed_mps = speed_mph * MPS_PER_MPH; const double time_to_goal_s = dist_to_goal_m / speed_mps; 7.1Example: time

Robert Fry, Artie Fuffkin, Gabriel Gerlero, Jaroslaw Glowacki, Matt Godbolt, William Gooch, Víctor M. González, Terence J. Grant, GrigorenkoPV, Piotr Halas, HALL9kv0, Morten Hattesen, Neil Henderson Henderson, Michael Hermier, h-vetinari, ILoveGoulash, Stefan Isak, Tim Keitt, Vanya Khodor, Hugo Lindström, Ferenc Nandor Janky, jazn, jgarvin, Dominik Kaszewski, kelbon, Marek Knápek, Emilia Kond, Vladimir }; class MyClass : public Base { public: virtual void f() { /*...*/ } // ... }; Compiler for (m : members) if (!v.has_access()) if(is_class()) v.make_private(); else // is_struct()

josuttis.com 1 C++ Nicolai M. Josuttis josuttis.com @NicoJosuttis Taming the C++ Filter View September 17, 2024 16:45 - 17:45 MDT ©2024 by josuttis.com 2 C++ Nicolai M. Josuttis • Independent consultant of end() end() begin() ++ pos end() begin() filter ++ pos ©2024 by josuttis.com 34 C++ • Manual iteration: 5 6 8 7 0 1 3 4 2 14 9 10 11 12 13 20 21 22 23 15 16 17 18 19 29 24 25 27 28 26 end() pos Nico Josuttis C++ Filter View @cppcon 2024-09-17 19©2024 by josuttis.com 39 C++ • Reverse manual iteration: 5 6 8 7 0 1 3 4 2 14 9 10 11 12 13 20 21 22 23 15 16 17 18 19 29 24 25 27 28 26 end()

real question, the idea of immediate compilation and "unit tests" appeals to me only rarely, when I’m feeling my way in a totally unknown environment and need feedback about what works and what doesn’t 77Rewrite; Power Peg Moved, Not Removed 78Did Not Retest Power Peg 79Deploy Version to Support RLP 80Manual Deployment Mistake 81No Review or Test of Deployment 82RLP Goes Live on 7 Servers 83Power Peg Peg in 2003, dead code still around •Refactored code in 2005 ; moved dead code ; test still pass •Manual deployment ; no review ; no tests •Different components had different view of same thing •email

library to do X is like telling a songwriter there’s already a song about love. Pete Cordell Jonathan Müller — @foonathan Express your expectations CppCon 2023-10-03 1tc::json::parser Extract some JSON members com/think-cell/think-cell-library Jonathan Müller — @foonathan Express your expectations CppCon 2023-10-03 2(JSON) Parser design What is a parser? Jonathan Müller — @foonathan Express your expectations (JSON) Jonathan Müller — @foonathan Express your expectations CppCon 2023-10-03 4Javascript Object Notation (JSON) Idea: Human-readable serialization of Javascript objects. Jonathan Müller — @foonathan

What is functional programming? Jonathan Müller — @foonathan Back to Basics: Functional Programming in C++ CppCon 2024-09-19 1Imperative Programming Definition Specify instructions that manipulate state state in order to achieve a goal. Jonathan Müller — @foonathan Back to Basics: Functional Programming in C++ CppCon 2024-09-19 2Imperative Programming Definition Specify instructions that manipulate manipulate state in order to achieve a goal. C and C++ Jonathan Müller — @foonathan Back to Basics: Functional Programming in C++ CppCon 2024-09-19 2Imperative Programming Definition Specify instructions that

dyndep https://ninja-build.org/manual.html#ref_dyndep • May 2019 ninja merged all of the changes to support Fortran because of C++ modules! 16https://ninja-build.org/manual.html#ref_dyndep Some use cases ring_view> extract_number(std::string_view s) noexcept { if (auto m = ctre::match<"[a-z]+([0-9]+)">(s)) { return m.get<1>().to_view(); } else { return std::nullopt; } } int hoffman@kitware.com • Read “how to write a CMake buildsystem” – https://cmake.org/cmake/help/latest/manual/cmake-buildsystem.7.html/Explore the CMake documentation • Explore the CMake documentation – https://www