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## Contributing to the C++ Core Guidelines
>"Within C++ is a smaller, simpler, safer language struggling to get out."
>-- <cite>Bjarne Stroustrup</cite>
The C++ Core Guidelines are a collaborative effort led by Bjarne Stroustrup, much like the C++ language itself. They are the result of many
person-years of discussion and design across a number of organizations. Their design encourages general applicability and broad adoption but
they can be freely copied and modified to meet your organization's needs.
We encourage contributions to the C++ Core Guidelines in a number of ways:
- **Individual feedback** Are you a developer who is passionate about your code? Join the discussion in
[Issues](https://github.com/isocpp/CppCoreGuidelines/issues). We want to know which rules resonate with you and which don't. Were any rules
inordinately difficult to apply? Does your compiler vendor's Guideline Support Library (e.g.,
[Microsoft's implementation of the GSL](https://github.com/microsoft/gsl)) suit your needs in adopting these guidelines?
- **Organizational adoption** While the guidelines are designed to be broadly adoptable they are also intended to be modified to fit your
organization's particular needs. We encourage your organization to fork this repo and create your own copy of these guidelines with changes
that reflect your needs. We suggest that you make it clear in the title of your guidelines that these are your organization's fork of the
guidelines and that you provide a link back to the original set of [guidelines](https://github.com/isocpp/CppCoreGuidelines). And if any of
your local changes are appropriate to pull back into the original guidelines, please open an
[Issue](https://github.com/isocpp/CppCoreGuidelines/issues) which can lead to a pull request.
- **Maintain the Guidelines** The C++ Core Guidelines were created from a wealth of knowledge spread across a number of organizations
worldwide. If you or your organization is passionate about helping to create the guidelines consider becoming an editor or maintainer. If
you're a C++ expert who is serious about participating please
[email coreguidelines@isocpp.org](mailto:coreguidelines@isocpp.org?subject=Maintain the C++ Code Guidelines).
## Contributor License Agreement
By contributing content to the C++ Core Guidelines (i.e., submitting a pull request for inclusion in this repository) you agree with the
[Standard C++ Foundation](https://isocpp.org/about) [Terms of Use](https://isocpp.org/home/terms-of-use), especially all of the terms specified
regarding Copyright and Patents.
- You warrant that your material is original, or you have the right to contribute it.
- With respect to the material that you own, you grant a worldwide non-exclusive irrevocable transferable royalty-free license to your contributed
material to Standard C++ Foundation to display, reproduce, perform, distribute and create derivative works of that material for commercial or
non-commercial use. With respect to any other material you contribute, such material must be under a license sufficient to allow Standard C++ Foundation
to display, reproduce, perform, distribute and create derivative works of that material for commercial or non-commercial use.
- You agree that, if your contributed material is subsequently reflected in the ISO/IEC C++ standard in any form, it will be subject to all ISO/IEC JTC
1 policies including [copyrights](http://www.iso.org/iso/home/policies.htm),
[patents](http://www.iso.org/iso/home/standards_development/governance_of_technical_work/patents.htm), and
[procedures](http://www.itscj.ipsj.or.jp/sc29/29w7proc.htm); please direct any questions about these policies to the
[ISO Central Secretariat](http://www.iso.org/iso/home/about.htm).
## Pull requests
We welcome pull requests for scoped changes to the guidelines--bug fixes in examples, clarifying ambiguous text, etc. Proposed changes should
first be discussed in the [Issues](https://github.com/isocpp/CppCoreGuidelines/issues) and the Issue number must be included in the pull
request. Changes should be made in a child commit of a recent commit in the master branch. Lastly, to avoid line ending issues, please
set `autocrlf = input` and `whitespace = cr-at-eol` in your git configuration.

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# CppCoreGuidelines # C++ Core Guidelines
The C++ Core Guidelines are a set of tried-and-true guidelines, rules, and best practices about coding in C++
>"Within C++ is a smaller, simpler, safer language struggling to get out."
>-- <cite>Bjarne Stroustrup</cite>
The C++ Core Guidelines are a collaborative effort led by Bjarne Stroustrup, much like the C++ language itself. They are the result of many
person-years of discussion and design across a number of organizations. Their design encourages general applicability and broad adoption but
they can be freely copied and modified to meet your organization's needs.
The aim of the guidelines is to help people to use modern C++ effectively. By "modern C++" we mean C++11 and C++14 (and soon C++17). In other
words, what would you like your code to look like in 5 years' time, given that you can start now? In 10 years' time?
The guidelines are focused on relatively higher-level issues, such as interfaces, resource management, memory management, and concurrency. Such
rules affect application architecture and library design. Following the rules will lead to code that is statically type safe, has no resource
leaks, and catches many more programming logic errors than is common in code today. And it will run fast - you can afford to do things right.
We are less concerned with low-level issues, such as naming conventions and indentation style. However, no topic that can help a programmer is
out of bounds.
Our initial set of rules emphasize safety (of various forms) and simplicity. They may very well be too strict. We expect to have to introduce
more exceptions to better accommodate real-world needs. We also need more rules.
You will find some of the rules contrary to your expectations or even contrary to your experience. If we haven't suggested you change your
coding style in any way, we have failed! Please try to verify or disprove rules! In particular, we'd really like to have some of our rules
backed up with measurements or better examples.
You will find some of the rules obvious or even trivial. Please remember that one purpose of a guideline is to help someone who is less
experienced or coming from a different background or language to get up to speed.
The rules are designed to be supported by an analysis tool. Violations of rules will be flagged with references (or links) to the relevant rule.
We do not expect you to memorize all the rules before trying to write code.
The rules are meant for gradual introduction into a code base. We plan to build tools for that and hope others will too.
Comments and suggestions for improvements are most welcome. We plan to modify and extend this document as our understanding improves and the
language and the set of available libraries improve.

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