Back to Basics Lambda Expressions Barbara Geller & Ansel Sermersheim CppCon September 2020Introduction ● Prologue ● History ● Function Pointer ● Function Object ● Definition of a Lambda Expression slot library ○ CsLibGuarded ■ library for managing access to data shared between threadsLambda Expressions ● History ○ lambda calculus is a branch of mathematics ■ introduced in the 1930’s to prove memory ■ languages which were influenced by lambda calculus ● Haskell, LISP, and ML 5Lambda Expressions ● History ○ why do we use the terminology lambda expression ■ greek letter λ refers to an anonymous

About me 2 6 ways for implementing math expressions calculator, Amir Kirsh Lecturer Academic College of Tel-Aviv-Yaffo and Tel-Aviv University Developer Advocate at Member of the Israeli ISO C++ NB NB Co-Organizer of the CoreCpp conference and meetup group3 6 ways for implementing math expressions calculator, Amir Kirsh Suffering from slow builds? It’s not just waste of time It affects your dev implementing math expressions calculator, Amir KirshSuccess Stories 5 6 ways for implementing math expressions calculator, Amir KirshSuccess Stories 6 6 ways for implementing math expressions calculator, Amir

When Nanoseconds Matter: Ultrafast Trading Systems in C++ CppCon 2024 Thursday, 19 September 2024 David Gross Introduction 2 • About me - Leading the Options Automated Trading else { levels.insert(it, {price, volume}); } }I-Cache misses – Immediately Invoked Function Expressions (IIFE) 59 template void DeleteOrder(T& levels, Price price, Volume volume if (it->second <= 0) { levels.erase(it); } } I-Cache misses – Immediately Invoked Function Expressions (IIFE)61 template void DeleteOrder(T& levels, Price price, Volume volume

. . . . . . . . . . . . . . . . . . . . 394 17.25 How to check the version of the Conan client inside a conanfile . . . . . . . . . . . . . . . . . . . . 395 17.26 Use a generic CI with Conan and Artifactory including different architectures, compilers, compiler versions, runtimes, C++ standard library, etc. When binaries are not available for one configu- ration, they can be built from sources on-demand. Conan platform. This means: • Moving forward to following minor versions 1.1, 1.2, ..., 1.X should never break existing recipes, packages or command line flows • If something is breaking, it will be considered

. . . . . . . . . . . . . . . . . . . . 392 17.25 How to check the version of the Conan client inside a conanfile . . . . . . . . . . . . . . . . . . . . 393 17.26 Use a generic CI with Conan and Artifactory including different architectures, compilers, compiler versions, runtimes, C++ standard library, etc. When binaries are not available for one configu- ration, they can be built from sources on-demand. Conan platform. This means: • Moving forward to following minor versions 1.1, 1.2, ..., 1.X should never break existing recipes, packages or command line flows • If something is breaking, it will be considered

. . . . . . . . . . . . . . . . . . . . 394 17.25 How to check the version of the Conan client inside a conanfile . . . . . . . . . . . . . . . . . . . . 395 17.26 Use a generic CI with Conan and Artifactory including different architectures, compilers, compiler versions, runtimes, C++ standard library, etc. When binaries are not available for one configu- ration, they can be built from sources on-demand. Conan platform. This means: • Moving forward to following minor versions 1.1, 1.2, ..., 1.X should never break existing recipes, packages or command line flows • If something is breaking, it will be considered

. . . . . . . . . . . . . . . . . . . . 392 17.25 How to check the version of the Conan client inside a conanfile . . . . . . . . . . . . . . . . . . . . 393 17.26 Use a generic CI with Conan and Artifactory including different architectures, compilers, compiler versions, runtimes, C++ standard library, etc. When binaries are not available for one configu- ration, they can be built from sources on-demand. Conan platform. This means: • Moving forward to following minor versions 1.1, 1.2, ..., 1.X should never break existing recipes, packages or command line flows • If something is breaking, it will be considered

. . . . . . . . . . . . . . . . . . . . . 383 17.25 How to check the version of the Conan client inside a conanfile . . . . . . . . . . . . . . . . . . . . . 383 17.26 Use a generic CI with Conan and Artifactory including different architectures, compilers, compiler versions, runtimes, C++ standard library, etc. When binaries are not available for one configuration, they can be built from sources on-demand. Conan platform. This means: • Moving forward to following minor versions 1.1, 1.2, …, 1.X should never break existing recipes, packages or command line flows • If something is breaking, it will be considered

. . . . . . . . . . . . . . . . . . . . 392 17.25 How to check the version of the Conan client inside a conanfile . . . . . . . . . . . . . . . . . . . . 393 17.26 Use a generic CI with Conan and Artifactory including different architectures, compilers, compiler versions, runtimes, C++ standard library, etc. When binaries are not available for one configu- ration, they can be built from sources on-demand. Conan platform. This means: • Moving forward to following minor versions 1.1, 1.2, ..., 1.X should never break existing recipes, packages or command line flows • If something is breaking, it will be considered