# How to become a contributor and submit your own code

## Contributor License Agreements

We'd love to accept your patches! Before we can take them, we
have to jump a couple of legal hurdles.

Please fill out either the individual or corporate Contributor License Agreement
(CLA).

  * If you are an individual writing original source code and you're sure you
    own the intellectual property, then you'll need to sign an
    [individual CLA](https://developers.google.com/open-source/cla/individual).
  * If you work for a company that wants to allow you to contribute your work,
    then you'll need to sign a
    [corporate CLA](https://developers.google.com/open-source/cla/corporate).

Follow either of the two links above to access the appropriate CLA and
instructions for how to sign and return it. Once we receive it, we'll be able to
accept your pull requests.

## Contributing A Patch

1. Submit an issue describing your proposed change to the repo in question.
1. The repo owner will respond to your issue promptly.
1. If your proposed change is accepted, and you haven't already done so, sign a
   Contributor License Agreement (see details above).
1. Fork the desired repo, develop and test your code changes.
1. Ensure that your code adheres to the existing style in the sample to which
   you are contributing.
1. Ensure that your code has an appropriate set of unit tests which all pass.
1. Submit a pull request.

## Style

This repository follow the [Google C++ Style Guide](
https://google.github.io/styleguide/cppguide.html).
Please make sure your contributions adhere to the style guide.

### Formatting

The code in this project is formatted with `clang-format(1)`, and our CI builds
will check that the code matches the format generated by this tool before
accepting a pull request. Please configure your editor or IDE to use the Google
style for indentation and other whitespace. If you need to reformat one or more
files, you can simply run `clang-format` manually:

```console
$ clang-format -i <file>....
```

If you need to reformat one of the files to match the Google style.  Please be
advised that `clang-format` has been known to generate slightly different
formatting in different versions. We use version 7; use the same version if you
run into problems.