C++20 Archives - CppMore

Compile time dispatching in C++20

今天讲消息分发的一种编译期实现法。编程是一门非常依赖逻辑的学科，逻辑分为形式逻辑和非形式逻辑，编程就属于形式逻辑。形式逻辑指的是用数学的方式去抽象地分析命题，它有一套严谨的标准和公理系统，对错分明；… Continue Reading Compile time dispatching in C++20

Posted on: August 16, 2023 September 5, 2023
Author: 里缪
Categories: Techniques
Tags: C++20, NTTP
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Views 1806

T230420 Unconditional compile-time expression

今天说两个关于编译期的小技巧。看如下例子： struct S { int val; constexpr int size() const { return val * (val + 1) / 2; … Continue Reading T230420 Unconditional compile-time expression

Posted on: April 20, 2023 July 24, 2023
Author: 里缪
Categories: TodayGroupShared
Tags: C++20, Constant expressions, NTTP, Tricks
Views 214

T230418 explicit(bool)

explicit(bool) 是 C++20 引入的一个特性，称为 Conditionally explicit。核心目的是简化泛型类型的实现，提高性能，减少编译时间。举个简单的例子： void … Continue Reading T230418 explicit(bool)

Posted on: April 18, 2023 July 24, 2023
Author: 里缪
Categories: TodayGroupShared
Tags: C++20, explicit(bool)
Views 222