The Absurdity of Error Handling: Finding a Purpose for Errors in Safety-Critical SYCL Erik Tomusk CppCon 2023 October 5, 2023© 2023 Codeplay Software Ltd. Codeplay Corporate Slide 2© 2023 Codeplay explicitly stated© 2023 Codeplay Software Ltd. Outline • Definition of Safety • Definition of Error Handling • Case Study • Why is this Important? • Is it Really so bad? • What does this mean for SYCL execution time (in mainstream compilers) 17Definition of Error Handling 18© 2023 Codeplay Software Ltd. Definition of Error Handling • Exceptions and error codes are sometimes used for reporting or

Message Handling with Boolean Algebra Ben Deane / CppCon / 2024-09-16 1Alternative Title "The Unreasonable Effectiveness of Boolean Algebra in Software Design, Showing the Particular Application of of a Message Handling Library, with an Excursion into the Roots of Programming" 2Frontmatter No AI/LLM was used in the creation of this talk. Code is simplified for slides; may have some errors in ] SVG diagrams for resolution-independence 4What this talk is about The workings of a message-handling library. How messages and the fields in them are specified. Efficiently identifying (with matchers)

Modern C++ Handling Phil Nash Error2018 2019series disappointments of a (total) Part 1int parse_int(std::string_view number)// TODO: +, -, digit separators? int acc = 0; for(char c versions Correct-by-construction Throwing violation-handler No noexcept PreconditionsModern C++ Handling Phil Nash Error

Using Kubernetes for handling second screen experience of european tv show About us Thomas Hector Head of IT Operations Key Qualifications ● 12+ years’ experience with development and operations operations ● Automating everything ● Been handling Kubernetes clusters in production for 2 years Jan-Erik Revsbech CTO Key Qualifications ● 20+ year of experience in web-development & operation/hosting

Design patterns for error handling in C++ programs using parallel algorithms and executors Mark Hoemmen* mhoemmen@stellarscience.com CppCon 2020 * hoʊ’mən, or hœm’mən; he/himWho am I? • > 10 years Started new job at Stellar Science in March Eschew raw pointersOutline • Parallelism makes error handling harder… • …C++ parallel algorithms and tasks specifically • Message Passing Interface (MPI): 3 decades Jurvetson)Parallel hinders error handling • … because parallelism relaxes execution order – Deliberately, to improve performance • Errors interrupt execution; handling constrains order • Errors could

The robot knows its location in the occupancy map at all times ● Solution: The robot will send a request to a ROS 2 service that generates a path from the robot’s current location and goal location, ::SetMap::Request> request, std::shared_ptr response); void generate_path_service( const std::shared_ptrRequest> request, std::sha ::SetMap::Request> request, std::shared_ptr response); void generate_path_service( const std::shared_ptrRequest> request, std::sha

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 1.11 Configuration Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 1.12 Signals Context . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 1.15 The Request Context . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 implemented in Flask itself. Numerous extensions provide database integration, form validation, upload handling, various open authentication technologies, and more. Flask may be “micro”, but it’s ready for pro-

to do if the Server does not Start Debug Mode Routing Static Files Rendering Templates Accessing Request Data Redirects and Errors About Responses Sessions Message Flashing Logging Hooking in WSGI Middleware Debuggers Logging Basic Configuration Email Errors to Admins Injecting Request Information Other Libraries Configuration Handling Configuration Basics Environment and Debug Features Builtin Configuration Instance Folders Signals Subscribing to Signals Creating Signals Sending Signals Signals and Flask’s Request Context Decorator Based Signal Subscriptions Core Signals Pluggable Views Basic Principle Method

bodies through request and response objects DRY request processing via middleware components and hooks Strict adherence to RFCs Idiomatic HTTP error responses Straightforward exception handling Snappy testing Creating Resources Testing your application Request and Response Objects Refactoring for testability Functional tests Serving Images Introducing Hooks Error Handling What Now? Tutorial (ASGI) First Steps Prettifying JSON Responses Decoding Raw URL Path Request ID Logging FAQ Design Philosophy Performance Routing Extensibility Request Handling Response Handling Misc. Deployment Guide Preamble & Disclaimer

bodies through request and response objects DRY request processing via middleware components and hooks Strict adherence to RFCs Idiomatic HTTP error responses Straightforward exception handling Snappy testing Creating Resources Testing your application Request and Response Objects Refactoring for testability Functional tests Serving Images Introducing Hooks Error Handling What Now? Tutorial (ASGI) First Steps Prettifying JSON Responses Decoding Raw URL Path Request ID Logging FAQ Design Philosophy Performance Routing Extensibility Request Handling Response Handling Misc. Deployment Guide Preamble & Disclaimer