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https://github.com/downdemo/Effective-Modern-Cpp
C++11/14/17 best practices for getting started quickly with modern C++.
https://github.com/downdemo/Effective-Modern-Cpp
best-practices modern-cpp
Last synced: 3 months ago
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C++11/14/17 best practices for getting started quickly with modern C++.
- Host: GitHub
- URL: https://github.com/downdemo/Effective-Modern-Cpp
- Owner: downdemo
- License: apache-2.0
- Created: 2019-03-13T06:56:45.000Z (over 5 years ago)
- Default Branch: master
- Last Pushed: 2022-10-03T08:07:50.000Z (about 2 years ago)
- Last Synced: 2024-06-18T11:33:49.584Z (5 months ago)
- Topics: best-practices, modern-cpp
- Language: C++
- Homepage: https://downdemo.github.io/Effective-Modern-Cpp/
- Size: 241 KB
- Stars: 243
- Watchers: 5
- Forks: 47
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
* Modern C++ 一般指 C++11 及其之后的标准，已在工业界被广泛应用。 C++ 初学者适合从 *[C++ Primer](https://learning.oreilly.com/library/view/c-primer-fifth/9780133053043/)* 开始学习 Modern C++ 的基本语法，通过 *[Effective C++](https://learning.oreilly.com/library/view/effective-c-55/0321334876/)* 掌握 C++98 的最佳实践，通过 *[Effective STL](https://learning.oreilly.com/library/view/effective-stl/9780321545183/)* 掌握 STL 的正确使用，通过 *[Effective Modern C++](https://learning.oreilly.com/library/view/effective-modern-c/9781491908419/)* 掌握 C++11/14 的最佳实践，至此即可避开语言缺陷，得心应手地发挥 C++ 的长处。此为个人笔记，还将补充 C++17 相关特性。
## [1. 类型推断](https://github.com/downdemo/Effective-Modern-Cpp/tree/master/docs/01_deducing_types.md)
* 01 模板类型推断机制
* 02 [auto](https://en.cppreference.com/w/cpp/language/auto) 类型推断机制
* 03 [decltype](https://en.cppreference.com/w/cpp/language/decltype)
* 04 查看推断类型的方法
## [2. auto](https://github.com/downdemo/Effective-Modern-Cpp/tree/master/docs/02_auto.md)
* 05 用 [auto](https://en.cppreference.com/w/cpp/language/auto) 替代显式类型声明
* 06 [auto](https://en.cppreference.com/w/cpp/language/auto) 推断出非预期类型时，先强制转换出预期类型
## [3. 转向现代 C++](https://github.com/downdemo/Effective-Modern-Cpp/tree/master/docs/03_moving_to_modern_cpp.md)
* 07 创建对象时注意区分 () 和 {}
* 08 用 [nullptr](https://en.cppreference.com/w/cpp/language/nullptr) 替代 0 和 [NULL](https://en.cppreference.com/w/cpp/types/NULL)
* 09 用 [using 别名声明](https://en.cppreference.com/w/cpp/language/type_alias)替代 [typedef](https://en.cppreference.com/w/cpp/language/typedef)
* 10 用 [enum class](https://en.cppreference.com/w/cpp/language/enum#Scoped_enumerations) 替代 [enum](https://en.cppreference.com/w/cpp/language/enum#Unscoped_enumeration)
* 11 用 =delete 替代 private 作用域来禁用函数
* 12 用 [override](https://en.cppreference.com/w/cpp/language/override) 标记被重写的虚函数
* 13 用 [std::cbegin](https://en.cppreference.com/w/cpp/iterator/begin) 和 [std::cend](https://en.cppreference.com/w/cpp/iterator/end) 获取 const_iterator
* 14 用 [noexcept](https://en.cppreference.com/w/cpp/language/noexcept_spec) 标记不抛异常的函数
* 15 用 [constexpr](https://en.cppreference.com/w/cpp/language/constexpr) 表示编译期常量
* 16 用 [std::mutex](https://en.cppreference.com/w/cpp/thread/mutex) 或 [std::atomic](https://en.cppreference.com/w/cpp/atomic/atomic) 保证 const 成员函数线程安全
* 17 特殊成员函数的隐式合成与抑制机制
## [4. 智能指针](https://github.com/downdemo/Effective-Modern-Cpp/tree/master/docs/04_smart_pointers.md)
* 18 用 [std::unique_ptr](https://en.cppreference.com/w/cpp/memory/unique_ptr) 管理所有权唯一的资源
* 19 用 [std::shared_ptr](https://en.cppreference.com/w/cpp/memory/shared_ptr) 管理所有权可共享的资源
* 20 用 [std::weak_ptr](https://en.cppreference.com/w/cpp/memory/weak_ptr) 观测 [std::shared_ptr](https://en.cppreference.com/w/cpp/memory/shared_ptr) 的内部状态
* 21 用 [std::make_unique](https://en.cppreference.com/w/cpp/memory/unique_ptr/make_unique)（[std::make_shared](https://en.cppreference.com/w/cpp/memory/shared_ptr/make_shared)） 创建 [std::unique_ptr](https://en.cppreference.com/w/cpp/memory/unique_ptr)（[std::shared_ptr](https://en.cppreference.com/w/cpp/memory/shared_ptr)）
* 22 用 [std::unique_ptr](https://en.cppreference.com/w/cpp/memory/unique_ptr) 实现 [pimpl 手法](https://en.cppreference.com/w/cpp/language/pimpl)必须在源文件中提供析构函数定义
## [5. 右值引用、移动语义和完美转发](https://github.com/downdemo/Effective-Modern-Cpp/tree/master/docs/05_rvalue_references_move_semantics_and_perfect_forwarding.md)
* 23 [std::move](https://en.cppreference.com/w/cpp/utility/move) 和 [std::forward](https://en.cppreference.com/w/cpp/utility/forward) 只是一种强制类型转换
* 24 转发引用与右值引用的区别
* 25 对右值引用使用 [std::move](https://en.cppreference.com/w/cpp/utility/move)，对转发引用使用 [std::forward](https://en.cppreference.com/w/cpp/utility/forward)
* 26 避免重载使用转发引用的函数
* 27 重载转发引用的替代方案
* 28 引用折叠
* 29 移动不比拷贝快的情况
* 30 无法完美转发的类型
## [6. lambda 表达式](https://github.com/downdemo/Effective-Modern-Cpp/tree/master/docs/06_lambda_expressions.md)
* 31 捕获的潜在问题
* 32 用初始化捕获将对象移入闭包
* 33 用 [decltype](https://en.cppreference.com/w/cpp/language/decltype) 获取 auto&& 参数类型以 [std::forward](https://en.cppreference.com/w/cpp/utility/forward)
* 34 用 lambda 替代 [std::bind](https://en.cppreference.com/w/cpp/utility/functional/bind)
## [7. 并发 API](https://github.com/downdemo/Effective-Modern-Cpp/tree/master/docs/07_the_concurrency_api.md)
* 35 用 [std::async](https://en.cppreference.com/w/cpp/thread/async) 替代 [std::thread](https://en.cppreference.com/w/cpp/thread/thread)
* 36 用 [std::launch::async](https://en.cppreference.com/w/cpp/thread/launch) 指定异步求值
* 37 RAII 线程管理
* 38 [std::future](https://en.cppreference.com/w/cpp/thread/future) 的析构行为
* 39 用 [std::promise](https://en.cppreference.com/w/cpp/thread/promise) 和 [std::future](https://en.cppreference.com/w/cpp/thread/future) 之间的通信实现一次性通知
* 40 [std::atomic](https://en.cppreference.com/w/cpp/atomic/atomic) 提供原子操作，volatile 禁止优化内存
## [8. 其他轻微调整](https://github.com/downdemo/Effective-Modern-Cpp/tree/master/docs/08_tweaks.md)
* 41 对于可拷贝的形参，如果移动成本低且一定会被拷贝则考虑传值
* 42 用 emplace 操作替代 insert 操作