Exception-Safe Code 53 class Widget { private: int i{ 0 }; std::string s{}; Resource* pr{}; // May be nullptr public: // … // … }; 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Resource* pr{}; // May be nullptr public: // … // Copy constructor Widget( Widget const& w ) : i { w.i } , s { w.s } { if( w.pr ) pr = new Resource( *w.pr ); } Resource* pr{}; // May be nullptr public: // … // Copy constructor Widget( Widget const& w ) : i { w.i } , s { w.s } { if( w.pr ) pr = new Resource( *w.pr ); }

public: // ... // ... private: }; // - pr as representative of a possible resource int i; std::string s; Resource* pr; Core Guideline C.32: If a class has a raw pointer (T*) delete pr; }Resource Management 73 class Widget { public: // ... // ... private: }; // - pr as representative of a possible resource int i; std::string s; Resource* pr; Core Guideline C.33: If a class has an owning pointer member, define a destructor ~Widget() { delete pr; } Core Guideline R.3: A raw pointer (a T*) is non-owningResource Management 74 class Widget {

template parameter kind template class std::array; https://godbolt.org/z/9Wh9Pr4cP75 David Olsen – Generic Programming CppCon 2024 Class Template Argument Kinds Template argument template class std::array; std::array a; https://godbolt.org/z/9Wh9Pr4cP76 David Olsen – Generic Programming CppCon 2024 Class Template Argument Kinds Template argument :5:27: note: expected a constant of type 'long unsigned int', got 'double' https://godbolt.org/z/9Wh9Pr4cP77 David Olsen – Generic Programming CppCon 2024 Class Template Argument Kinds Template argument

comments! • GH-1173 Fix ostr << flt precision • Fixed long-standing bugs while preserving ABI • Every PR is extensively reviewed by 2 maintainers • Keeps code at production quality: always ready to ship Ready To Merge -> Done • GitHub Migration • C++20 Features • Available -> Investigating -> Reviewing PR -> Done • Maintainer Priorities • Large features: Chrono, Format, Spaceship 42Wiki • Changelog history between releases • Old process: Record commits, write them up later • New process: Merge PR, add Changelog entry immediately • Advice for Reviewing Pull Requests • MSVC STL Contributors Meeting

comments! • GH-1173 Fix ostr << flt precision • Fixed long-standing bugs while preserving ABI • Every PR is extensively reviewed by 2 maintainers • Keeps code at production quality: always ready to ship Ready To Merge  Done • GitHub Migration • C++20 Features • Available  Investigating  Reviewing PR  Done • Maintainer Priorities • Large features: Chrono, Format, Spaceship43 Wiki • Changelog history between releases • Old process: Record commits, write them up later • New process: Merge PR, add Changelog entry immediately • Advice for Reviewing Pull Requests • MSVC STL Contributors Meeting

Explorer (godbolt.org/z/cs19oj) 8[requires] mp-units/0.6.0 [generators] cmake conan install .. -pr -s compiler.cppstd=20 -b=missing CppCon 2020 | A Physical Units Library For the CONAN CENTER (OFFICIAL RELEASES) 9[requires] mp-units/0.6.0 [generators] cmake conan install .. -pr -s compiler.cppstd=20 -b=missing [requires] mp-units/0.7.0@mpusz/testing [generators] cmake conan remote add conan-mpusz https://api.bintray.com/conan/mpusz/conan-mpusz conan install .. -pr -s compiler.cppstd=20 -b=outdated -u CppCon 2020 | A Physical Units Library For

• 原创文章：122 篇 /03 社区活动2019年 10 月31 日 正式开始 istio 1.5 官网文档的翻译。 2 个月 累计合并 PR 数超过 300 个。 300+ 超过 60 人参与了官网的翻译。 60+ 持续时间 合并 PR 数 参与人数 20 万+ 翻译字数 累计翻译的文档中汉字数超过 20 万。 /04 Istio.io 社区化翻译活动Istio 官网本地化活动卓越贡献者

Bloomberg Finance L.P. All rights reserved. Source: makeagif(www.makeagif.com) And when you code + PR review! 81© 2018 Bloomberg Finance L.P. All rights reserved. Tools to detect anti-patterns that prevent Profile, find the bottlenecks, and use RVO techniques, if applicable ● RVO during everyday coding & PR reviews: Try to mitigate the anti-patterns 83© 2018 Bloomberg Finance L.P. All rights reserved.

难度中等 本地技术支持 有, 1小时响应 无 定期巡检和培训 有 无 基于 Apache APISIX 的全流量网关 Nginx 遇到的挑战 • 社区不活跃：没有 github issue 和 PR • 没有跟进云原生：nginx-k8s-controller、nginx unit 的尝试都失败了 • 配置不能热加载 • 非 http、https 流量的兴起（微服务、物联网…） • 商业化不成功 • 来自 Apache 孵化器主席和 Apache APISIX champion 的评价 • 每个月一个版本，雷打不动，让社区和用户保持习惯和预期 • 当天回复邮件列表和 github issue、PR • 频繁的布道和走访用户：每个月一次 meetup，走访过美团、腾讯、华为、贝壳、平安、又拍云、中 国移动、思必驰、空中云汇、中国航信等几十家企 业 活跃是我们的唯一目标 • 不看 github

https://github.com/django-cms/django-cms/pull/6421 app registration docs in the description of the PR Add-ons now make use of a new config system; this is to be migrated to all pools. Add-ons can now define – Fabian Braun lint menus app (#7534) (927b60b47) – Vinit Kumar remove curly bracket left behind on PR 7488 (#7529) (123f7df91) – Corentin Bettiol Statistics: This release includes 45 pull requests, and menu in the page tree. What’s new in 3.11.3 Bug Fixes: Remove superfluous curly bracket left behind on PR 7488 (#7529) – Corentin Bettiol Fix admin tests (#6848) for some post requests (#7535) – Fabian Braun