## 20 23 October 01 - 06 ## +23 ## A Journey Into Non-Virtual Polymorphism ## RUDYARD MERRIAM ## Who Doesn't Recognize This??  Cppcon 2023 | Rud Merriam | A Journey into Non-Virtual Polymorphism ## Background ## • Experience with many languages – FORTRAN IV (1968!), PL/M, assembly, C, Turbo Pascal, Forth • Taught for embedded systems (Arduino, Raspberry Pi) - Medium.com (https://medium.com/@rudmerriam) ## Polymorphism • Greek: “many forms” (Obligatory statement) - The use of a single symbol to represent multiple

Apache Cassandra static column 介绍与实战 假设我们有这样的场景：我们想在 Cassandra 中使用一张表记录用户基本信息（比如 email、密码等）以及用户状态更新。我们知道，用户的基本信息一般很少会变动，但是状态会经常变化，如果每次状态更新都把用户基本信息都加进去，势必会让费大量的存储空间。为了解决这种问题，Cassandra 引入了 static column。同一个 partition partition key 中被声明为 static 的列只有一个值的，也就是只存储一份。 解Spark、Hadoop或者Hbase相关的文章，欢迎关注微信公共帐号：iteblog_hadoop ## 定义 static column 在表中将某个列定义为 STATIC 很简单，只需要在列的最后面加上 STATIC 关键字，具体如下： CREATE TABLE "iteblog_u #34; ( "username" text, "id" timeuuid, "email" text STATIC, "encrypted_password" blob STATIC, "body" text, PRIMARY KEY ("username", "id") ); it

## RUST CHINA CONF 2023 第三届中国Rust开发者大会 6.17-6.18 @Shanghai ## Rustle: the first static analyzer for smart contracts in Rust Matthew Jiang Director of Security Team @ BlockSec Outline 1 Motivation in Rustle • Complete documentation and samples is preferred ## Conclusion - Rustle is the first static analyzer for smart contracts in Rust and has been integrated into our workflow - Rustle supports

## Finding Bugs using Path-Sensitive Static Analysis ## Welcome to CppCon 2021! Join #visual_studio channel on CppCon Discord https://aka.ms/cppcon/discord • Meet the Microsoft C++ team • Ask any questions latest announcements Take our survey https://aka.ms/cppcon ## Agenda • Intro to path-sensitive static analysis • Path-sensitive checks in MSVC • A look under the hood • Upcoming features • Lessons Lessons learned  ## Static Analysis tor v(5); [0]; /nologo /analyze:only /analyze:plugin .cpp(6) : warning C26446: Prefer

Programming Static polymorphism ## Generic Programming Same code works on different, unrelated types Static polymorphism ## C++ Templates Same code works on different, unrelated types Static polymorphism T f() const { return T}; } template T g(U u) const { return static_cast(u); } }; https://godbolt.org/z/n69rGKE93 ## Class Template Member return T}; } template template T A::g(U u) const { return static_cast(u); } } https://godbolt.org/z/n69rGKE93

Programming Key Ideas Early and Late Binding Class Traps Virtuality Inheritance override final Polymorphism Template method Interfaces Destructor Liskov substitution principle Inheritance (interface Programming Key Ideas Early and Late Binding Class Traps Virtuality Inheritance override final Polymorphism Template method Interfaces Destructor Liskov substitution principle Inheritance (interface Programming Key Ideas Early and Late Binding Class Traps Virtuality Inheritance override final Polymorphism Template method Interfaces Destructor Liskov substitution principle Inheritance (interface

43ff11567a25e4/p6_2.jpg) ## Riverblade Accelerating PC-lint C++ code analysis to complete the static analysis of a Visual Studio solution in a fraction of...  # Six ways for Implementing Math Expressions Calculator A walk through polymorphism, smart pointers, templates, concepts and more Amir Kirsh  << endl; delete e; // to print something like: // ((3 ^ 2) + (-1)) = 8 ## A quick polymorphism exercise Let's start here: http://coliru.stacked-crooked.com/a/192d90699cd08eb5 (Or just

9b4651c4aab0/p13_1.jpg) Kiuwan can automatically run your code through Kiuwan Code Security, a static application security testing (SAST) suite that is compliant with the most stringent security standards

$ ^{*} $ 1. static\_cast 2. const cast 3. dynamic_cast 4. reinterpret_cast ## static_cast struct B {}; struct D : public B {}; int main() { int i = 7001; float f = static_cast(i); ui8 = static_cast(1.75f * f); // 2 D d; B& rb = d; D& rd = static_cast(pv); T* ## static cast multiple hops struct A { explicit A(int){ puts("A");}}; 1. A has a constructor that takes a single int ## static cast multiple hops struct

krzysztof-jusiak [README] Add file [README] README.md -> reflect [README] Code About C++20 Static Reflection library 444d020 - 3 weeks ago 287 Commits .github reflection meta-programming cpp20 10 watching // Overview / Examples / API / FAQ 14 forks Report repository ## REFLECT: C++20 Static Reflection library license MIT release v1.2.3 build try it online https://en.wikipedia.org/wik releases Contributors 6 ## ☀️ ☁️ ☁️ ☁️ struct foo { char ch; float flt{26.2f}; }; ## } static_assert(reflect::get("flt")(foo{}) == 26.2f); Output of x86-64 clang (trunk) (Compiler #1)