Naming conventions

1. Open the Naming Convention tab in Settings | Editor | Code Style | C/C++.

2. Specify naming settings for the entities in your code:

   

   note

   Refer to Header guards for details on header guard templates and settings.

   • You can apply a rule for several entities at a time. Click the Entity Kind field and select multiple options:

     

     Note that if you clear all the checkboxes, the rule will be applied to all entity kinds. When several rules are applicable to an entity at a given code location, CLion uses the last one from the list.

   • In the Naming Convention field, select the spelling style: lowercase, camelCase, PascalCase, snake_case, Leading_upper_snake_case, Upper_Snake_Case, SCREAMING_SNAKE_CASE, or UPPERCASE.

   • You can also specify separate rules for particular types of some entities (for example, when you use specific naming for private/public class members or static/const variables). For this, set the Visibility and Specifier fields where applicable:

     

   • If required, specify Prefix and Suffix (for example, 'e_' as a prefix for enums and 't_' for typedefs).

3. To save the configured style for the current project only, select Project in the Scheme switcher.

You can check your code for consistency with the configured naming convention by using the Inconsistent Naming inspection. By default, this inspection is disabled - to turn it on, go to Settings | Editor | Inspections | C/C++ | General.

When enabled, this inspection highlights the symbols that violate naming rules and suggests quick-fixes to instantly change them:

Also, you can run this inspection separately to check the entire code base or a subset of files. For this, run Code | Inspect Code or invoke the Run Inspection by Name dialog CtrlAltShift0I and search for Inconsistent Naming. The results will be listed in the Inspection Results tool window: