Python? ● Writing extensive APIs in Python - low boilerplate ● Familiar for domain experts ● Easy to use ○ Amazing interactive support out of the box (IPython) ○ Jupyter notebooks provide a great research Cython 476ns 119ns 57ns 54ns 61K *: C++ program contains the std::chrono library to time, others use python to do that Everything compiled with clang++12 -fPIC -O3Some perf numbers: per increment runtime boost::python::object ○ boost::python::object is a smart pointer around a PyObject* ○ Only useful to use bpy::object if you’re going to keep it around ○ Why would we want to do this?Arguments to functions

Francesco Zoffoli - Coroutine Patterns and How to Use Them - CppCon 2023 2About Me • Software engineer building monitoring systems at • Passionate about C++ • Author of the book “C++ Fundamentals” – Packt Packt • I like writing and talking about C++ Francesco Zoffoli - Coroutine Patterns and How to Use Them - CppCon 2023 3 makers.f.dev@gmail.comOutline • Motivation • Overview • Patterns • Lifetime Coroutine Patterns and How to Use Them - CppCon 2023 4Motivation • 40 years of • Experience • Accumulated knowledge Francesco Zoffoli - Coroutine Patterns and How to Use Them - CppCon 2023 5Motivation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132 11 Mastering Conan 149 11.1 Use conanfile.py for consumers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C++ standard [EXPERIMENTAL] . . . . . . . . . . . . . . . . . . . . . . . . . . . 317 16.9 How to use Docker to create and cross-build C and C++ Conan packages . . . . . . . . . . . . . . . 318 16.10 version from text or build files . . . . . . . . . . . . . . . . . . . . . . . . . 338 16.23 How to use Conan as other language package manager . . . . . . . . . . . . . . . . . . . . . . . . . 339 16.24

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 10 Mastering Conan 131 10.1 Use conanfile.py for consumers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C++ standard [EXPERIMENTAL] . . . . . . . . . . . . . . . . . . . . . . . . . . . 285 15.9 How to use Docker to create and cross-build C and C++ Conan packages . . . . . . . . . . . . . . . 286 15.10 version from text or build files . . . . . . . . . . . . . . . . . . . . . . . . . 306 15.23 How to use Conan as other language package manager . . . . . . . . . . . . . . . . . . . . . . . . . 306 15.24

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 10 Mastering Conan 121 10.1 Use conanfile.py for consumers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C++ standard [EXPERIMENTAL] . . . . . . . . . . . . . . . . . . . . . . . . . . . 262 14.8 How to use Docker to create and cross-build C and C++ Conan packages . . . . . . . . . . . . . . . 264 14.9 How version from text or build files . . . . . . . . . . . . . . . . . . . . . . . . . 283 14.22 How to use Conan as other language package manager . . . . . . . . . . . . . . . . . . . . . . . . . 284 14.23

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132 11 Mastering Conan 149 11.1 Use conanfile.py for consumers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C++ standard [EXPERIMENTAL] . . . . . . . . . . . . . . . . . . . . . . . . . . . 313 16.9 How to use Docker to create and cross-build C and C++ Conan packages . . . . . . . . . . . . . . . 314 16.10 version from text or build files . . . . . . . . . . . . . . . . . . . . . . . . . 334 16.23 How to use Conan as other language package manager . . . . . . . . . . . . . . . . . . . . . . . . . 335 16.24

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 10 Mastering Conan 121 10.1 Use conanfile.py for consumers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C++ standard [EXPERIMENTAL] . . . . . . . . . . . . . . . . . . . . . . . . . . . 262 14.8 How to use Docker to create and cross-build C and C++ Conan packages . . . . . . . . . . . . . . . 264 14.9 How version from text or build files . . . . . . . . . . . . . . . . . . . . . . . . . 283 14.22 How to use Conan as other language package manager . . . . . . . . . . . . . . . . . . . . . . . . . 284 14.23

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 10 Mastering Conan 143 10.1 Use conanfile.py for consumers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C++ standard [EXPERIMENTAL] . . . . . . . . . . . . . . . . . . . . . . . . . . . 307 15.9 How to use Docker to create and cross-build C and C++ Conan packages . . . . . . . . . . . . . . . 308 15.10 version from text or build files . . . . . . . . . . . . . . . . . . . . . . . . . 328 15.23 How to use Conan as other language package manager . . . . . . . . . . . . . . . . . . . . . . . . . 328 15.24

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 9 Mastering Conan 103 9.1 Use conanfile.py for consumers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C++ standard [EXPERIMENTAL] . . . . . . . . . . . . . . . . . . . . . . . . . . . 226 13.8 How to use Docker to create and cross-build C and C++ Conan packages . . . . . . . . . . . . . . . 228 ii 13 version from text or build files . . . . . . . . . . . . . . . . . . . . . . . . . 248 13.21 How to use Conan as other language package manager . . . . . . . . . . . . . . . . . . . . . . . . . 249 13.22

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 10 Mastering Conan 123 10.1 Use conanfile.py for consumers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C++ standard [EXPERIMENTAL] . . . . . . . . . . . . . . . . . . . . . . . . . . . 275 15.9 How to use Docker to create and cross-build C and C++ Conan packages . . . . . . . . . . . . . . . 276 15.10 version from text or build files . . . . . . . . . . . . . . . . . . . . . . . . . 296 15.23 How to use Conan as other language package manager . . . . . . . . . . . . . . . . . . . . . . . . . 296 15.24