Edition  5th Edition (C++20) coming later this year  Co-author of C++ Standard Library Quick Reference& C++17 Standard Library Quick Reference  Founder of the Belgian C++ Users Group (BeCPP)3 C++20 C++20 published by the end of 2020.4 Agenda  Modules  Ranges  Coroutines  Concepts  Lambda Expression Changes  [=, this] as Lambda Capture  Templated Lambda Expressions  Pack Expansion in Lambda Concurrency Changes  Atomic Smart Pointers  Joining & Cancellable Threads  The C++20 Synchronization Library  Semaphores, efficient atomic waiting, latches, and barriers  std::atomic_ref  Designated Initializers

Professional C++, 2nd, 3rd, 4th, and 5th Edition  Co-author of C++ Standard Library Quick Reference& C++17 Standard Library Quick Reference  Founder of the Belgian C++ Users Group (BeCPP) C++204 Agenda Character Escapes  Trim Whitespace Before Line Splicing  C++23 Standard Library  String Formatting Improvements  Standard Library Modules  std::flat_(multi)map / std::flat_(multi)set  std::mdspan d_overwrite()  Monadic Operations for std::optional  Stacktrace Library  Changes to Ranges Library  Changes to Views Library  std::expected  std::move_only_function<>  std::spanstream 

v] = expression(); • 相当于： • auto tmp = expression(); • auto &k = std::get<0>(tmp); • auto &v = std::get<1>(tmp); • auto const &[k, v] = expression(); • 相当于： • auto const &tmp = expression(); •

small projects • 2020 ~ 2021 More open-source projects, gomoku, youki, dapr-wasm • 2022 ~ Regular contributions to Rust My Rust experience • A real case Remove duplicated diagnostics • Issue

}), ex::schedule(sched) | ex::then([] { return compute_intensive(2); }) );11 SENDERS ARE EXPRESSION TEMPLATES ex::sender auto work = ex::when_all( ex::schedule(sched) | ex::then([] { return compute_intensive(2); }) ); when_all then then then schedule schedule schedule12 SENDERS ARE EXPRESSION TEMPLATES ex::sender auto work = ex::when_all( ex::schedule(sched) | ex::then([] { return

重塑移动应用开发 Photo / image / chart Rust FFI On 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 com/KeystoneHQ/rcc_android https://github.com/aaronisme/rcc_ios Rust Crypto Core Core business logic library ， can be shared on different platform. - Signer - cryptography support - Blockchain Support 利用 Rust 重塑移动应用开发 Photo / image / chart RCC_Android 利用 Rust 重塑移动应用开发 - RCC_Andorid is an rust library which is to binding Rust code into Android application. - Use the crate rifgen, flapigen to

IANA time zone database. • This functionality requires several new types to be added to the library: • tzdb • tzdb_list • time_zone • zoned_time • time_zone_link • ambiguous_local_time • nonexistent_local_time for time zone data We had a few options... • Ship the entire IANA time zone database with the library The IANA time zone database is huge (1.25MB) – we would have some very unhappy customers if their for time zone data We had a few options... • Ship the entire IANA time zone database with the library The IANA time zone database is huge (1.25MB) – we would have some very unhappy customers if their

-C build • 以下命令和上一个等价，但更跨平台： • > cmake --build build • 执行生成的 a.out ： • > build/a.out 为什么需要库（ library ） • 有时候我们会有多个可执行文件，他们之间用到的某些功能是相同的，我们想把这些共用 的功能做成一个库，方便大家一起共享。 • 库中的函数可以被可执行文件调用，也可以被其他库文件调用。 可以生成可执行文件外，还可以通过 add_library 生成库 文件。 • add_library 的语法与 add_executable 大致相同，除了他需要指定是动态库还是静态库： • add_library(test STATIC source1.cpp source2.cpp) # 生成静态库 libtest.a • add_library(test SHARED source1

basic_string and basic_string_view • Other small features 🕙 Coming next for C++23 • STL • Standard library modules • Coroutines 💡 C++98* * with /permissive- 💡 C++11 💡 C++14 💡 C++17 💡 C++20* *awaiting Team Productivity Simplify C++ dependency management with . vcpkg Open-source library manager for Windows, Linux, and macOS 1700+ popular open-source libraries available for installation Create your own private library catalog for use within vcpkg; great for internal, closed-source 3rd party libraries and community repositories 🔢 Versioning Choose which library versions you want (works

sort. The typical result is ... undefined. What compiler flags (clang) were used by the library? By the library consumer? -fsjlj-exceptions? -fignore-exceptions? -fdwarf-exceptions? -fseh-exceptions? to have thread affinity at interop boundaries. • Consider how the consumer’s tools work with your library’s memory model.Conclusion • Document what you want and assume. • Understand assumptions and be