 CppCon 2020 • Announced at CppCon 2019 • github.com/microsoft/STL • Apache License v2.0 with LLVM Exception • Implemented ~50 C++20 features • Majority from our amazing contributors • Extensively Special Math • tests/std, tests/libcxx, tests/tr1 (legacy) • llvm-project submodule for libc++'s test suite • Uses Python and lit (LLVM Integrated Tester) • Linear history, squashed commits • Feature _MSVC_STL_UPDATE • Updated every month by new contributors • Custom Autolinks • DevCom-724444, LLVM-41915, LWG-3080, WG21-P120944 Status Chart45 Status Chart: Pull Request Age

Defining a macro for calling conventions is a great start. For example, MYLIB_CCONV. • Reference: llvm - CallingConv.h • Don’t throw exceptions across the boundary.Memory model https://gchandbook.org/ Defining a macro for calling conventions is a great start. For example, MYLIB_CCONV. • Reference: llvm - CallingConv.h • Don’t throw exceptions across the boundary. Explicitly state/document memory ownership

Formatting ☑️� IntelliSense ⌛; ☑️�MSVC ☑️�MSVC Code Analysis ☑️�MSBuild ; CMake ⌛ ; GCC ⌛ ; Clang/LLVM ⌛ ☑️�Stepping ☑️�Parallel Stacks ☑️�Debugger visualizers (.natvis) ☑️�Just My Code debugging integration • MSBuild & CMake support for Windows & Linux • Debugger integration for MSVC and Clang/LLVM Visit https://aka.ms/asan to learn more Announcing today Experimental libFuzzer Support • An in-process

，从而执行其中编译成机器码， 调用系统提供的 printf 函数，并在终端显示出 Hello, world 。 厂商 C C++ Fortran GNU gcc g++ gfortran LLVM clang clang++ flang 多文件编译与链接 • 单文件编译虽然方便，但也有如下缺点： 1. 所有的代码都堆在一起，不利于模块化和理解。 2. 工程变大时，编译时间变得很长，改动一个地方就得全部重新编译。