Code Style

Scheme

In this area, choose the code style scheme and change it as required. Code style scheme settings are automatically applied every time CLion generates, refactors, or reformats your code.

Code styles are defined at the project level and at the IDE level (global).

At the project level, settings are grouped under the Project scheme, which is predefined and is marked in bold. The Project style scheme is applied to the current project only.
You can copy the Project scheme to the IDE level, using the Copy to IDE command.
At the IDE level, settings are grouped under the predefined Default scheme (marked in bold), and any other scheme created by the user by the Duplicate command (marked as plain text). Global settings are used when the user doesn't want to keep code style settings with the project and share them.
You can copy the IDE scheme to the current project, using the Copy to Project command.

Item	Description
Scheme	From this list, select the scheme to be used. The predefined schemes are shown bold. The custom schemes, ones created as copies of the predefined schemes, are in plain text. The location where the scheme is stored is written next to each scheme, for example, the Default scheme is stored in the IDE, the Project scheme is stored in the project.
	Click this button to invoke the list of commands to manage the schemes: Copy to IDE: select this option to copy the scheme settings to CLion. The option is available only for the Project scheme. Export: select this option to export the selected scheme to an .xml file or an .editorconfig file in the selected location. The option is available for the Project and IDE schemes. Import Scheme: select this option to import the scheme of the selected type from the specified location. The option is available for the Project and IDE schemes. Copy to Project: select this option to overwrite your current project code style settings with the settings from the selected IDE code style scheme. The option is available only for IDE schemes. Duplicate: select this option to create a copy of the selected scheme. The option is available only for IDE schemes. Reset: select this option to reset the default or bundled color scheme to the initial defaults shipped with CLion. This command becomes available only if some changes have been done. The option is available only for IDE schemes. Rename: select this option to change the name of the selected custom scheme. Press `Enter` to save changes, or `Escape` to cancel. The option is available only for IDE schemes.

Item

Description

Scheme

From this list, select the scheme to be used. The predefined schemes are shown bold. The custom schemes, ones created as copies of the predefined schemes, are in plain text. The location where the scheme is stored is written next to each scheme, for example, the Default scheme is stored in the IDE, the Project scheme is stored in the project.

Click this button to invoke the list of commands to manage the schemes:

Copy to IDE: select this option to copy the scheme settings to CLion.
The option is available only for the Project scheme.
Export: select this option to export the selected scheme to an .xml file or an .editorconfig file in the selected location.
The option is available for the Project and IDE schemes.
Import Scheme: select this option to import the scheme of the selected type from the specified location.
The option is available for the Project and IDE schemes.
Copy to Project: select this option to overwrite your current project code style settings with the settings from the selected IDE code style scheme.
The option is available only for IDE schemes.
Duplicate: select this option to create a copy of the selected scheme.
The option is available only for IDE schemes.
Reset: select this option to reset the default or bundled color scheme to the initial defaults shipped with CLion. This command becomes available only if some changes have been done.
The option is available only for IDE schemes.
Rename: select this option to change the name of the selected custom scheme. Press Enter to save changes, or Escape to cancel.
The option is available only for IDE schemes.

Line Separators

CLion lets you configure line separator and indentation options for various languages. When reformatting source code, CLion will apply the specified indentation behavior and skip the sections denoted with the special formatting off/on markers.

Item	Description
Line Separator	Use this list to specify which line separator is to be used in files created by CLion. The available options are: System-Dependent: select this option to use the default selection. Unix and macOS (\n): select this option to use the Unix and macOS line separator. Windows (\r\n): select this option to use the Windows line separator. Classic Mac OS (\r): select this option to use the `\r` line separator, which was used in Classic Mac OS (up to Mac OS 9).
Hard wrap at	In this field, specify the number of columns to be used to display pages in the editor.
Wrap on typing	Select this checkbox to ensure that edited text always fits in the specified right margin.
Visual guides	In this field, specify multiple right margins. You can leave a default value or enter the number of spaces for your margin. If you want to specify several margins, enter numbers separated by comma.

Indents detection

Select the Detect and use existing file indents for editing checkbox for CLion to detect the indentation style in the current file and use this style instead of the indents specified in the Code Style settings for the specific language.

CLion displays the indentation information in the status bar of the editor. You can click the indentation information to see the available actions, such as enable or disable this option, and change the current indentation to the ones specified in the Code Style settings for the specific language.

ClangFormat

Item	Description
Enable ClangFormat with clangd server	Select this checkbox to turn on ClangFormat as alternative code formatter (ClangFormat settings override the IDE code style settings). Note that ClangFormat requires the Clangd language engine to be enabled.

Formatter

In this area, specify the markers to limit code fragments that you want to exclude from reformatting. In the source code, formatting markers are written inside line comments.

Item	Description
Do not format	In this field, specify a glob pattern with the names of files and directories that you want to exclude from reformatting, code arrangement, and import optimization.
Markers
Turn formatter on/off with markers in code comments	If this option is enabled, fragments of code between line comments with the formatting markers will not be reformatted and will preserve the original formatting. After you select this checkbox, the fields below become available and you can specify the character strings to be treated as formatting markers. If this option is disabled, the formatting markers will be ignored and the code between the line comments with markers will be reformatted.
Off:	In this field, specify the character string that will indicate the beginning of a code fragment which you want to exclude from reformatting. Type a character string with the `@` symbol in preposition or leave the predefined value `@formatter:off`.
On:	In this field, specify the character string that will indicate the end of a code fragment which you want to exclude from reformatting. Type a character string with the `@` symbol in preposition or leave the predefined value `@formatter:on`.
Enable regular expressions in formatter markers	Select this checkbox to use regular expressions instead of specifying the formatting markers explicitly. CLion matches formatter on/off markers using the regular expression specified instead of the exact string.

Example of using formatting markers

The example below shows two code fragments. One of the is enclosed in the @formatter:off and @formatter:on markers while the other one is not.

The original formatting is preserved:

The original formatting is not preserved:

Last modified: 28 October 2021