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public:it:cplusplus [2022/05/05 19:11] – [Articles] oakfirepublic:it:cplusplus [2025/02/17 14:59] (当前版本) – [Articles] oakfire
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   * [[https://github.com/google/sanitizers/wiki/AddressSanitizer|AddressSanitizer]] 内存错误检测:-o   * [[https://github.com/google/sanitizers/wiki/AddressSanitizer|AddressSanitizer]] 内存错误检测:-o
     * Meson 构建系统打开 ASAN 的方式：[[https://mesonbuild.com/Builtin-options.html#base-options|设置 b_sanitize]]     * Meson 构建系统打开 ASAN 的方式：[[https://mesonbuild.com/Builtin-options.html#base-options|设置 b_sanitize]]
 +  * [[https://agraphicsguynotes.com/posts/fiber_in_cpp_understanding_the_basics/|Fiber in C++: 纤程的原理与实现]]
 +  * [[https://learnmoderncpp.com/|Learn Modern C++]]
 +  * [[https://blogs.gentoo.org/mgorny/2024/09/23/overview-of-cross-architecture-portability-problems/|C的移植性问题，参考]]
  
 ===== Syntax ===== ===== Syntax =====
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     * 正则 std::regex     * 正则 std::regex
     * 随机数相关 ''<random>''     * 随机数相关 ''<random>''
 +    * 关于 shared_ptr 的线程安全：[[https://www.boost.org/doc/libs/1_73_0/libs/smart_ptr/doc/html/smart_ptr.html#shared_ptr_thread_safety|shared_ptr_thread_safety]]
   * c++ 14 新增 std::make_unique, std::shared_timed_mutex, std::shared_lock, std::integer_sequence, std::exchange, std::quoted   * c++ 14 新增 std::make_unique, std::shared_timed_mutex, std::shared_lock, std::integer_sequence, std::exchange, std::quoted
-  * c++ 17 新增 std::variant, std::optional, std::any, std::apply, std::string_view, std::shared_mutex +  * c++ 17 新增 std::variant, std::optional, std::any, std::apply, std::string_view,  
-    * 新增文件操作相关 std::filesystem+    * 读写锁 std::shared_mutex 
 +    * 文件操作相关 std::filesystem
   * c++ 20 新增 std::format, 基于[[https://docs.python.org/3/library/string.html#formatspec|python格式化规范]]   * c++ 20 新增 std::format, 基于[[https://docs.python.org/3/library/string.html#formatspec|python格式化规范]]
-    * 可中断线程  std::jthread, std::stop_toke+    * 可中断线程  std::jthread, std::stop_token 
 +    * 并发控制 std::barrier, std::latch 
 +    * 协程关键字 co_await, co_yield, co_return 
 +    * 操作 std::ranges, std::views
     * 原子引用 std::atomic_ref     * 原子引用 std::atomic_ref
     * 数学常数 std::numbers     * 数学常数 std::numbers
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     * For a native linker on an ELF system, if the file ''/etc/ld.so.conf'' exists, the list of directories found in that file.     * For a native linker on an ELF system, if the file ''/etc/ld.so.conf'' exists, the list of directories found in that file.
   * 由上，如果不想混淆系统lib, 程序可自行用 ''LD_LIBRARY_PATH'' 环境变量指定自己的lib目录。   * 由上，如果不想混淆系统lib, 程序可自行用 ''LD_LIBRARY_PATH'' 环境变量指定自己的lib目录。
 +==== › Tips ====
 +  * 禁用异常的编译选项:''-fno-exceptions''
 +  * 有返回值声明的函数末尾如果没有返回, gcc 7.5 版本编译时会默认加个 return 0,  但之后的版本应该是和 clang 一样不加了。c++11 标准，有返回值声明的函数末尾如果没有返回，将出现未定义行为。所以按理这个情况编译器应该报错，但  gcc  编译只报了 warning , 而运行时没有返回值导致的 crash 栈信息都很奇怪不好查。 所以gcc7.5之后的编译参数都得加上   ''-Werror=return-type''  ，这样没有返回值时编译期可以报error，好规避问题。
 +  * gcc/g++ 优化级别详细查看：''gcc -Q --help=optimizers -O1''
 +
 +
 ===== C++资源与工具 ===== ===== C++资源与工具 =====
   * [[https://github.com/fffaraz/awesome-cpp|awesome-cpp]]   * [[https://github.com/fffaraz/awesome-cpp|awesome-cpp]]
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 ==== › Build System ==== ==== › Build System ====
   * [[.:cmake]]  - Cross-platform free and open-source software for managing the build process of software using a compiler-independent method. [BSD]   * [[.:cmake]]  - Cross-platform free and open-source software for managing the build process of software using a compiler-independent method. [BSD]
-  * [[https://ninja-build.org/|Ninja]] - Ninja is a small build system with a focus on speed.[Apache 2.0]+  * [[https://ninja-build.org/|Ninja]] - Ninja is a small build system with a focus on speed.[Apache 2.0], 对标Make, 专注速度
   * autotools   * autotools
   * [[gyp]]   * [[gyp]]
-=== 包管理 ===+  * [[https://mesonbuild.com/|meson]] - Meson is an open source build system meant to be both extremely fast, and, even more importantly, as user friendly as possible. (python) 
 +==== › 包管理 ====
   * [[https://github.com/microsoft/vcpkg|Vcpkg]] - C++ library manager for Windows, Linux, and MacOS. [MIT]   * [[https://github.com/microsoft/vcpkg|Vcpkg]] - C++ library manager for Windows, Linux, and MacOS. [MIT]
     * vcpkg 安装的库默认都可以向后兼容，更新方法为直接git pull 最新vcpkg然后 vcpkg update/upgrade, 如果为了协作与稳定，可以指定 git checkout vcpkg 的某个tag, 来保证彼此库版本一致。     * vcpkg 安装的库默认都可以向后兼容，更新方法为直接git pull 最新vcpkg然后 vcpkg update/upgrade, 如果为了协作与稳定，可以指定 git checkout vcpkg 的某个tag, 来保证彼此库版本一致。
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   * [[http://valgrind.org/|valgrind]] - A tool for memory debugging, memory leak detection, and profiling.   * [[http://valgrind.org/|valgrind]] - A tool for memory debugging, memory leak detection, and profiling.
   * [[https://github.com/nlohmann/json|nlohmann-json]] -  JSON for Modern C++. [MIT]   * [[https://github.com/nlohmann/json|nlohmann-json]] -  JSON for Modern C++. [MIT]
 +  * [[https://github.com/sogou/workflow|Sogou C++ Workflow]] - This is an enterprise-level programming engine in light and elegant design which can satisfy most C++ back-end development requirements.[Apache-2.0]
 +  * [[https://github.com/yhirose/cpp-httplib|cpp-httplib]] - A C++11 single-file header-only cross platform HTTP/HTTPS library.[MIT]
  
  
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  • 最后更改: 2022/05/05 19:11
  • 由 oakfire