Coding Style

Philosophy

If it's inserting something into the existing classes/functions, try to follow the existing style as closely as possible.
If it's brand new code or refactoring a complete class or area of the code, please follow as Modern C++ of a style as you can and reference the C++ Core Guidelines as much as you possibly can.

We use XamlStyler to format XAML files. You can use the Visual Studio Extension or apply formatting executing .\.pipelines\applyXamlStyling.ps1 -Main.
We use .clang-format style file to enable automatic code formatting. You can easily format source files from Visual Studio. For example, CTRL+K CTRL+D formats the current document.
If you prefer another text editor or have ClangFormat disabled in Visual Studio, you could invoke format_sources powershell script from command line. It gets a list of all currently modified files from git and invokes clang-format on them. Please note that you should also have clang-format.exe in %PATH% for it to work. The script can infer the path of clang-format.exe version which is shipped with Visual Studio at %VCINSTALLDIR%\Tools\Llvm\bin\, if you launch it from the Native Tools Command Prompt for VS.
CI doesn't enforce code formatting yet, since we're gradually applying code formatting to the codebase, but please adhere to our formatting style for any new code.