P. All rights reserved. © 2024 Bloomberg Finance L.P. All rights reserved. Designing C++ Code Generator Guardrails A collaboration between outreach and development teams & users CppCon 2024 September least astonishment.” We were offering a modern set of guardrails for Bloomberg’s 20-year-old Code Generator. Others responded before we could. They said they weren’t the least bit surprised.© 2018 Bloomberg features were used in a feature rich tool; and Made it far easier to continue modernizing the Code Generator. We did it without risk! And we did it with the consensus and participation of dozens of teams

determined by the weights 16SAMPLE VIEW DEFINITION Given a particle range and a random number generator (RNG), generate a lazy computed infinite sequence of random samples (with replacement). sample(particles and a random number generator (RNG), generate a lazy computed infinite sequence of random samples (with replacement). sample(particles, gen) ➡ view IMPLEMENTATION std::generator std::views::generate std::generator (C++23) template > requires std::ranges::random_access_range && std::uniform_random_bit_generator &&

PathGenerator( rclcpp::NodeOptions const& options = rclcpp::NodeOptions{}) : Node("path_generator", options); private: void set_map_service( const std::shared_ptr ::SharedPtr map_setter_service_; rclcpp::Service::SharedPtr path_generator_service_; }; ● PathGenerator will be used to generate the path for our robot ● This code was PathGenerator( rclcpp::NodeOptions const& options = rclcpp::NodeOptions{}) : Node("path_generator", options); private: void set_map_service( const std::shared_ptr

. . . . . . . . . . . . . . . . . . . 751 ii 10 Incubating features 753 10.1 New CMakeDeps generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 753 10.2 Workspaces Finalizing install (deploy, generators) ---------- conanfile.txt: Generator 'CMakeToolchain' calling 'generate()' conanfile.txt: Generator 'CMakeDeps' calling 'generate()' conanfile.txt: Generating aggregated Finalizing install (deploy, generators) ---------- conanfile.txt: Generator 'CMakeToolchain' calling 'generate()' conanfile.txt: Generator 'CMakeDeps' calling 'generate()' conanfile.txt: Generating aggregated

Finalizing install (deploy, generators) ---------- conanfile.txt: Generator 'CMakeToolchain' calling 'generate()' conanfile.txt: Generator 'CMakeDeps' calling 'generate()' conanfile.txt: Generating aggregated Finalizing install (deploy, generators) ---------- conanfile.txt: Generator 'CMakeToolchain' calling 'generate()' conanfile.txt: Generator 'CMakeDeps' calling 'generate()' conanfile.txt: Generating aggregated new file called conanbuild.sh/bat. This is the result of automatically invoking a VirtualBuildEnv generator when we declared the tool_requires in the conanfile.txt. This file sets some environment variables

Finalizing install (deploy, generators) ---------- conanfile.txt: Generator 'CMakeToolchain' calling 'generate()' conanfile.txt: Generator 'CMakeDeps' calling 'generate()' conanfile.txt: Generating aggregated Finalizing install (deploy, generators) ---------- conanfile.txt: Generator 'CMakeToolchain' calling 'generate()' conanfile.txt: Generator 'CMakeDeps' calling 'generate()' conanfile.txt: Generating aggregated new file called conanbuild.sh/bat. This is the result of automatically invoking a VirtualBuildEnv generator when we declared the tool_requires in the conanfile.txt. This file sets some environment variables

Finalizing install (deploy, generators) ---------- conanfile.txt: Generator 'CMakeToolchain' calling 'generate()' conanfile.txt: Generator 'CMakeDeps' calling 'generate()' conanfile.txt: Generating aggregated Finalizing install (deploy, generators) ---------- conanfile.txt: Generator 'CMakeToolchain' calling 'generate()' conanfile.txt: Generator 'CMakeDeps' calling 'generate()' conanfile.txt: Generating aggregated new file called conanbuild.sh/bat. This is the result of automatically invoking a VirtualBuildEnv generator when we declared the tool_requires in the conanfile.txt. This file sets some environment variables

Finalizing install (deploy, generators) ---------- conanfile.txt: Generator 'CMakeToolchain' calling 'generate()' conanfile.txt: Generator 'CMakeDeps' calling 'generate()' conanfile.txt: Generating aggregated Finalizing install (deploy, generators) ---------- conanfile.txt: Generator 'CMakeToolchain' calling 'generate()' conanfile.txt: Generator 'CMakeDeps' calling 'generate()' conanfile.txt: Generating aggregated new file called conanbuild.sh/bat. This is the result of automatically invoking a VirtualBuildEnv generator when we declared the tool_requires in the conanfile.txt. This file sets some environment variables

Standard Library Modules  std::flat_(multi)map / std::flat_(multi)set  std::mdspan  std::generator  basic_string(_view)::contains()  Construct string(_view) From nullptr  basic_string::resize_and_overwrite() Standard Library Modules  std::flat_(multi)map / std::flat_(multi)set  std::mdspan  std::generator  basic_string(_view)::contains()  Construct string(_view) From nullptr  basic_string::resize_and_overwrite() Standard Library Modules  std::flat_(multi)map / std::flat_(multi)set  std::mdspan  std::generator  basic_string(_view)::contains()  Construct string(_view) From nullptr  basic_string::resize_and_overwrite()

rate growth rate #include std::mt19937_64 rnd_generator; std::exponential_distribution<> exp{rate}; double time = exp(rnd_generator); 𝑢12 𝜆1A computational model for cancer initiation 5 9 … ArrayXXd TumorGenerator::single_tumor(unsigned seed) { rnd_generator.seed(seed); // set the seed of the random number generator const int datalen = (int)(tmax / dt) + 1; Eigen::ArrayXXd time_population(datalen 3 … ArrayXXd TumorGenerator::single_tumor(unsigned seed) { rnd_generator.seed(seed); // set the seed of the random number generator const int datalen = (int)(tmax / dt) + 1; Eigen::ArrayXXd time_population(datalen