2 cppfront: Recap Safety for C++ 50 esp. guaranteed program-meaningful initialization Simplicity for C++ 10 esp. for programmers cppfront: What’s new Types, reflection, metafunctions, … Simplification CppCon 2019 Parameter passing d0708 CppCon 2020 Patmat using is and as P2392 CppCon 2021 Simplicity (goal: 10 less to know) Context-free, order independent “Zero-overhead” backward compatibility conferences9 cppfront: Recap Safety for C++ 50 esp. guaranteed program-meaningful initialization Simplicity for C++ 10 esp. for programmers cppfront: What’s new Types, reflection, metafunctions, … Simplification

inspect. What does "good code" mean for unit tests? Part 2: Code Readability 49Readability Simplicity! Jon Jagger: Unit tests should have a cyclomatic complexity of 1 Unit Tests should have no logic even more rare. Aspirational Goal, Not Rule “Simplicity is prerequisite for reliability.” ― Edsger W. Dijkstra Part 2: Code Readability Simplicity 50Readability float compute_pi() { return std::acos(-1); the code under test even if they don't know what it's supposed to do Part 2: Code Readability Simplicity 54Step 3: Interesting Conditions "Interesting" values derive from studying the algorithm and

Suggest Better ways Ask about Simplicity Remind about Evolution Identify Technical DebtWhat-If? Did you consider? Suggest Better ways Ask about Simplicity Remind about Evolution Identify Mistakes by Navigator Actual mistakesHow about… Discuss & implement Better ways Ensure Simplicity Enable Evolution Address Technical Debt Evaluate more options!High- Ownership Functional

std::endl;Branchless binary search 52Binary search – memory access 53Linear search 54Principle #4: “Simplicity is the ultimate sophistication” 55 Source: ChatGPT56 Source: ChatGPT Principle #5: “Mechanical mCachedReadCounter) { return 0; } ... }103 FastQueue – Final Results on AMD EPYC 9474FPrinciple #4: “Simplicity is the ultimate sophistication” 106 Source: ChatGPT107 Going further – Zero copy struct QProducer

Programming Is simplicity a good goal ? We're C++ programmers, are we not ?2023 Victor Ciura | @ciura_victor - Regular, Revisited 42 Slide Title Fundamentals of Generic Programming Is simplicity a good

C++ Multiple Backend acceleration and API independent SYCL 2020 increases expressiveness and simplicity for modern C++ heterogeneous programming 11SYCL 2020 Industry Momentum https://www.alcf.anl C++ Multiple Backend acceleration and API independent SYCL 2020 increases expressiveness and simplicity for modern C++ heterogeneous programming 123© The Khronos® Group Inc. 2020 - Page 124 This work

Greater reuse • Better scaling Make things “unrelated” • Orthogonal design: • Associated with simplicity (the more orthogonal the design, the fewer the exceptions) Today, orthogonality is used in: programming languages • Design of APIs • Design of user interfaces A B Orthogonality grants simplicity to dismiss as a possibility some behaviors or component interactions within the resulting system

footprint : libmicrogradpp.a is only 122KB. • Inspiration from micrograd: Drawing inspiration from the simplicity and educational focus of the original micro- grad library, micrograd++ brings these benefits to

SW helps solving problems The Last Spike Languages Memory management Expressive code Simplicity Work as intended Documented ReviewsReliability Efficiency Security Maintainability

Intentionally ignoring the weak reference count and the possibility of custom allocators for simplicity… retire(this); // Retire the control block36 Daniel Anderson -- danielanderson.net Performance37