Templated Lambda Expressions  Pack Expansion in Lambda Captures  constexpr Changes  virtual functions  union, try/catch, dynamic_cast, typeid  allocations  constexpr string & vector  Concurrency [[unlikely]]  Calendars & Timezones  std::span  Feature Test Macros   Immediate Functions – consteval  constinit  Class Enums and using Directive  Text Formatting  Math Constants Advantages  Replace header files  Modules explicitly state what should be exported (e.g. classes, functions, …)  Separation into module interface files and module implementation files is possible but not

• Introduction • Memory • Host vs Device Functions • Return on Investment • Concluding remarks Outline 2 |• I work the RiskLab team at CSIRO on applied mathematics for Financial Risk. • The aim of auto const N = x.size(); vector y(N, &device_mem); } Memory Allocation Across Functions 32 |Questions About Memory Allocation? 33 |Host vs Device FunctionsExecution Space Specifiers specifier declares a function as being a kernel. Such a function is: • Executed on the device, • Callable from the host. The __device__ execution space specifier declares a function that is: • Executed

defaults to being on the same thread. Too much work on main thread • Android nested layouts • Functions and objects defined in loops • Statements like debugger, eval, with. • How to access Native Engine layouts with one GridLayout. Loops • Beware of function and memory allocations inside of loops. You see this as a standard pattern. function loopFunction () { var val = 0; for (var i=0;i<100000;i++) i=0;i<100000;i++) { doSomething( () => { val++; } ); } } Loops • Proper way function loops() { var val = 0, fun = function() { val++; }; for (var i=0;i<100000;i++) { doSomething(fun);

Library  Changes to Ranges Library  Changes to Views Library  std::expected  std::move_only_function<>  std::spanstream  std::byteswap()  std::to_underlying()  Associative Containers Heterogeneous Library  Changes to Ranges Library  Changes to Views Library  std::expected  std::move_only_function<>  std::spanstream  std::byteswap()  std::to_underlying()  Associative Containers Heterogeneous Library  Changes to Ranges Library  Changes to Views Library  std::expected  std::move_only_function<>  std::spanstream  std::byteswap()  std::to_underlying()  Associative Containers Heterogeneous

format("r2 < r1: {}", res::value); // false8 Compile-Time Rational Numbers  Predefined SI type aliases: using atto = ratio<1, 1'000'000'000'000'000'000>; using femto = ratio<1, 1'000'000'000'000'000>; October 2021. auto lastMondayOfOct2021 { 2021y / October / Monday[last] };33 Dates  New type aliases: template using sys_time = std::chrono::time_point

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FFI (Foreign Function Interface) refers to the ability of Rust programming language to interface with code written in other languages, typically C or C++. FFI allows Rust to call functions and use data IOS - Rust targets for IOS - Build the static universal library for different target - Call the function on the swift code 利用 Rust 重塑移动应用开发 Photo / image / chart Rust 在 Keystone 业务上的实践 Rust Crypto as linked library into the application Protocol Buffers 利用 Rust 重塑移动应用开发 Directly expose the function to IOS/Android? - Hard to maintain - Hard to define the return value - Hard to process the error

signs: 'short' and 'unsigned int' [-Wsign-compare] • This prints false 🙀9 Integer Comparison Functions • GH-621 implemented by Neargye #include #include using namespace std; int elements before C++20: • vector-like: erase-remove idiom • list-like: remove/remove_if member functions • map-like: handwritten loop calling m.erase(iter) • Many potential hazards 🙀 • remove_if(v print(vector{7, 8, 9}); }24 Contiguous > Random-Access • Can we print(deque{-1, -1, -1}); ? • candidate function not viable: no known conversion from 'std::deque >' to 'const span

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zones; • vector links; • vector leap_seconds; • And has member functions: • const time_zone* locate_zone(string_view tz_name) co nst; • const time_zone* current_zone() the get_tzdb_list() function. Then you can access individual tzdbs from the list using the tzdb_list::const_iterator. • Alternatively, you can just use the get_tzdb() function which just returns

iteration in establishing software requirements • Growing software organically, adding more and more functions to systems as they are run, used, and tested”Who said it?Frederick Brooks Jr. • Joined IBM in single part of building a software system is deciding precisely what to build • The most important function that software builders do for their clients is the iterative extraction and refinement of the

способ поддержать все возможности стандарта и сохранить все расширения ClickHouse! 2021: Window Functions, ANY/ALL, EXISTS, GROUPING SETS... 2022: Correlated Subqueries Отсутствие оптимизаций JOIN 18