Compiler Windows ((new)) — Clang

For the standard official LLVM installation to work seamlessly with clang-cl , it needs to find Microsoft's linker ( link.exe ) and libraries. The easiest way is to open a (or 2019) from the Windows Start menu. This command prompt automatically sets up all the necessary environment variables for the MSVC toolchain. From that prompt, clang-cl will just work.

. It uses MSVC headers and libraries, meaning it can link with code compiled by the standard Microsoft compiler. This is the version most integrated with Microsoft Visual Studio MSYS2 / MinGW Clang : This flavor is part of the MSYS2 ecosystem

Always run your standalone command-line compilations from the Developer Command Prompt for VS , which automatically populates the required %PATH% , %INCLUDE% , and %LIB% environment variables. Conclusion

Requires cl.exe (from VS Build Tools) in PATH. Run vcvars64.bat from VS or use . clang compiler windows

Close the terminal, open a new one, and verify the installation:

is a compiler frontend for the LLVM compiler infrastructure, supporting C, C++, and Objective-C. It is known for: Fast Compilation Times: Often faster than MSVC.

What you use (CMake, Visual Studio, or a custom script?) Which C++ standard you target (C++17, C++20, C++23?) For the standard official LLVM installation to work

Example output:

By using Clang, you gain access to the LLVM ecosystem, including clang-format for automated code styling, clang-tidy for static analysis, and lld for lightning-fast linking.

To use them with CMake, add the following to your CMakeLists.txt : From that prompt, clang-cl will just work

cmake -G "Ninja" -DCMAKE_CXX_COMPILER=clang-cl .. cmake --build .

clang-format -i --style=LLVM *.cpp *.h

If you use package managers like winget or scoop , you can install LLVM with a single terminal command. powershell winget install LLVM.LLVM Use code with caution. Using Scoop: powershell scoop install llvm Use code with caution.

mkdir build && cd build cmake .. -G "Visual Studio 17 2022" -T ClangCL cmake --build . --config Release