Clang Cheatsheet

Misc Gotchas

• Compile c file as C++: clang -xc++ "filename" -std=c++14
• note -xc++ must come before file list
• clang driver won't automatically link C++ stdlib; must pass -stdlib=libc++
• Treating .h files as C++ headers (to get around #pragma once warning)
• pass -xc++-header
• for clang-cl, /clang:-xc++-header
• NOTE: don't pass -xc++ and -xc++-header
• NOTE: might have ordering issues in compile_commands.json so be sure to use --
• Additional info
  • https://github.com/clangd/clangd/issues/777
  • https://github.com/clangd/clangd/issues/555
  • Compile C++ header files with clang-cl that have a .h extension

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Last update: 2023-03-05
Created: 2021-11-14