How to use clang-format

clang-format is a tool that can be used to format C++ code to match a coding style.

• Installing it is easy:

$ sudo apt install clang-format

• To format a C++ file:

$ clang-format foobar.cpp

This formats the lines in the input file and spits out the formatted lines to stdout.

• To format a C++ file inplace:

$ clang-format -i foobar.cpp

• To format a file using the styles specified in a .clang-format config file in one of the parent dirs of source file:

$ clang-format -style=file foobar.cpp