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Overview

clang-format is an utility to format source code in several languages according to predefined settings. Settings for auto-formatting of C++ source files in Kratos are summarized below, and should be saved in .clang-format file in the Kratos root directory. These settings are chosen to closely match the formatting style used in Kratos.

Configuring Editors

Visual Studio Code

Install the C/C++ extension and customize settings.json to include:

"C_Cpp.clang_format_path": "/path/to/<clang-format-executable>",
"C_Cpp.clang_format_style": "file",
"C_Cpp.clang_format_fallbackStyle": "none"

Emacs

Add the line

(load "/path/to/clang-format.el")

to ~/.emacs.d/init.el. Format a source file with M-x clang-format-region.

CLion

Add the .clang-format file to the Kratos root directory as explained above
Go to File->Settings->Tools->External Tools and click on the plus sign. A window should pop up. Choose a name, for example “clang-format”
For the Tool settings tab I’m using this configuration:
- Program: clang-format (you should use the name of your executable here)
- Parameters: –style=file -i $FileName$
- Working directory: $FileDir$

Now, with your file open, you can go to Tools->External tools and run the config above. It basically calls clang-format and does inplace formatting using the style define in the first .clang-format file found in a parent directory.

.clang-format file

(tested with clang-format version 3.5, 3.8)