language, so no header needed  Within an if consteval block you can call immediate (consteval) functions, which you cannot do in /*A*/ above  if consteval cannot be used wrong is_constant_evaluated() std::string> a { 21 }; std::expected b { std::unexpected("Some error"s) };  Member functions:  has_value(): true if the expected contains a value, false otherwise  value(): returns reference std::spanstream  Defined in  Allows to use stream operations on external buffers  E.g. input: char data[] = "11 22"; std::ispanstream s { std::span{data} }; int a, b; s >> a >> b;

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 ) Experimental flag: Allow host code to invoke __device__constexpr functions, and device code to invoke __host__constexpr functions. Note that the behavior of this flag may change in future compiler

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 Allows you to test a set of functions to see if v8 will be able to optimize it. Example code that can’t be optimized • debugger; statement. • Polymorphic functions Beware of Object changes! Questions

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

result of input sender to function, which returns new sender. when_all(senders...) → sender … completes when all the input senders complete. on(scheduler, sender) → sender … starts the input sender in in the context of the input scheduler. into_variant(sender) → sender … packages all possible results of input sender into a variant of tuples. bulk(sender, size, fn) → sender … launches a bulk operation cancels the other. It completes // with the result of `task` when both operations complete. // process input in a loop until the user interrupts: sender auto work_loop = unifex::stop_when( unifex::repeat_effect(

at(“hell”) 会直接报错，反而好排查。 [] 运用举例：出现次数统计 • vector input = {“hello”, “world”, “hello”}; • map counter; • for (auto const &key: input) { • counter[key]++; } • 则 counter 最后为： • {“hello”: 2, “world”: 1}; [] 运用举例：归类 • vector input = {“happy”, “world”, “hello”}; • map> categories; • for (auto const &str: input) { • char key = str[0]; • categories[key]

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

to interface with code written in other languages, typically C or C++. FFI allows Rust to call functions and use data structures defined in other languages, and vice versa. 利用 Rust 重塑移动应用开发 Photo /

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