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75 lines
2 KiB
ReStructuredText
75 lines
2 KiB
ReStructuredText
Style Guide
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===========
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There is a ``.editorconfig`` and a ``.clang-format`` file in the project root
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that defines some basic guidelines, mainly relating to indentation.
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Code Formatting
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---------------
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We use ``clang-format`` for code formatting, the style rules are defined in
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``.clang-format``, before submitting a PR, make sure to run the following command
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on all the C++ files you changed:
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.. code-block:: shell
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clang-format -style=file -i <FILES>
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**Note:** Depending on which file you change, this may produce a lot of changes
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because we have not run ``clang-format`` on all files in the project. This is
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fine.
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Indentation
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~~~~~~~~~~~
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Files use 2 spaces for indentation.
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Line Width
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~~~~~~~~~~
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Lines should not be longer than 120 characters, ``clang-format`` will enforce
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this when run. However, try to keep lines under 80 characters if it seems
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reasonable in the current situation.
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In some cases it makes sense to have lines longer than 80 characters for
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readability. But long lines can just the same be unreadable, for example if you
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have long if-conditions or use complex expressions as function parameters. Make
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sure you only use longer lines if keeping it under 80 would be less readable.
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Comments
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--------
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Use Doxygen ``/** */`` comments in front of functions, methods, types, members and
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classes:
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.. code-block:: cpp
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/**
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* @brief Generates a config object from a config file
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*
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* For modularity the parsing and storing of the config is separated
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*/
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class config_parser {
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...
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/**
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* @brief Is used to resolve ${root...} references
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*/
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string m_barname;
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...
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}
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For all other comments use ``//`` for single-line and ``/* */`` for multi-line comments.
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Your comments should describe the intent and purpose of your code, not necessarily what it does.
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Header Files
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------------
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Header files should end in ``.hpp``.
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We use pragmas instead of include guards to guarantee header files are included
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only once:
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.. code-block:: cpp
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#pragma once
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