The Quick Documentation popup is now available in CMake scripts. The documentation is shown for the standard CMake entities:

• Commands
• Policies
• Modules
• Variables
• Properties

Documentation is always rendered for the currently bundled CMake version and is not available for the user-defined entities for now.

In CLion 2022.2, you can now review CMake cache variables and update CMake options that are passed to the CMake command in a single table-based UI in Settings | Build, Execution, Deployment | CMake.

When the table is in focus, start typing to search for a variable or its value. CLion also shows the short description in tooltips for CMake cache variables.

Learn more.

Colorized compiler output helps users deal with compilation errors much faster. That’s why we made our own contribution to CMake v3.24. We implemented a way to enable colorized output for the Ninja generator in CMake in CLion by default.

Note: CLion bundles CMake v3.23 for now. To get the colorized output, you need to get CMake 3.24 and use it in the CLion toolchain.

When reading through the code base, you often want to check the value of constant expressions. CLion now shows the value of the expressions evaluated at compile time in the Quick Documentation popup. This works for consteval, constexpr, or template instantiations, just to name a few examples.

It can be useful to see whether a given struct or class declaration supports copy and move operations, so CLion now shows this information in the Quick Documentation popup.

GDB servers are often used to debug on-chip. A new wizard helps with creating Embedded GDB Server run configurations with the predefined GDB server arguments corresponding to the GDB server type selected in the wizard settings. The supported types are:

• Segger JLink
• QEMU emulator
• PyOCD
• St-util
• STM32CubeIDE ST-LINK GDB server
• PE Micro (OpenSDA)

Learn more.

CLion’s data flow analysis now calculates the upper and lower bounds of the possible values for every integral variable. This provides extra information for checks like Unreachable code, Constant conditions, and others.

On top of this interval analysis, the Array index is out of bounds check is built. It reports variables that access an array or allocated buffer via the index which may be out of bounds.

Learn more.

The inspection settings in Settings | Editor | Inspections now visualize the highlighting style. When you want to change how an inspection appears in the editor, you can set it up using the new Highlighting in editor drop-down menu, which conveniently shows all available highlighting styles.

Valgrind Memcheck is a tool integrated into CLion for detecting memory usage problems. In v2022.2, we’ve enhanced the way configuration issues are reported. CLion now notifies you when Valgrind Memcheck is launched for the release configuration and the debug information is missing for the executable as a result.

When debugging, sometimes the library symbols are not available on your local machine. In this case, you can use a symbol server, a file server that stores your debug symbols centrally on a server rather than on each developer’s machine. In CLion on Windows, you can now configure symbol servers for the debugger in Settings | Build, Execution, Deployment | Debugger | Symbol Servers.

Learn more.

When using remote development with local sources, the initial synchronization step might take quite some time. CLion 2022.2 uses rsync to synchronize your deployment configuration. Our measurements have shown that this leads to a significant improvement in performance.

Learn more.

IntelliJ Rust now takes #![recursion_limit] into account, which controls the macro expansion depth. If you don’t need macros to expand fully, you can adjust the Maximum recursion limit for macro expansion setting.

We’ve also enabled the new approach to detecting changes in configuration files, as well as a new way to reload project models.

Other IntelliJ Rust plugin improvements:

• The plugin can now convert JSON to Rust structs via copy-paste.
• We’ve added inspections and quick-fixes for unused_must_use and clippy::double_must_use lints.
• The plugin now parses generic parameters, type aliases, and type bindings of generic associated types.
• If the Emulate terminal in output console option is enabled, the proper terminal is now used.
• We’ve implemented some improvements for type inference, including unsized coercion.
• URLs are highlighted and you can open them in a browser.

Space integration is now bundled with CLion 2022.2. With the first-class integration, you can browse Space projects and clone repositories, then start working on them directly. When your changes are ready, you can create a merge request and perform a code review from within the IDE.

• The support for CUDA development in CLion has been enhanced. CUDA compilation database projects are now supported in CLion. And the CUDA-gdb debugger integration was fixed to allow you to step out from CUDA calls correctly.
• CLion v2022.2 enables system header indexing for the Microsoft Visual C++ toolchain. This makes auto-import work for such headers.

The new remote development workflow is now bundled into CLion and available from CLion’s Welcome screen. Use a powerful remote machine to execute all IDE operations and to build, run, and debug code – all while running the IDE on a local thin client.

Cloud dev environments featured in Space can now be used with CLion to speed-up onboarding, get a ready-to-use IDE in seconds, and manage your development resources efficiently. Learn more about Space dev environments.

Learn more about remote development with the thin client or consider the other types of remote configurations available in CLion.

When working with the Docker toolchain, you can now provide additional container settings, such as port and volume bindings, and so on.

The Valgrind memcheck tool for detecting memory-usage problems now works with the Docker toolchain.

CLion now automatically creates CMake Profiles for configure presets (it was only available for build presets before). The change makes the configuration process easier and allows the removal of redundant build presets.

CLion now also works with the --preset argument passed to the cmake command. The data from the preset is loaded into build type, toolchain, and build directory settings.

CMake generators are now easier to configure in CLion with the new and updated options:

• Use default – for new projects, this option now takes the build tool configured for the toolchain selected in the corresponding CMake Profile.
• Let CMake decide – this option means CLion won’t be favoring any CMake generator explicitly, meaning that CMake will decide what generator to use.

CMake scripts are now formatted more accurately:

• if() .. endif(), else() and elseif(), endforeach(), endfunction(), endmacro(), and endwhile() are aligned correctly.
• It is now possible to fold blocks for these commands.
• Brace pairing and code block highlighting are available for these commands as well.

The CUDA-GDB debugger can now be used in CLion. To make it work, you’ll need to specify the cuda-gdb binary in the debugger setting of your current toolchain, and use the following compiler option:

add_compile_options(-G) to add CUDA debug symbols.

The option to show both decimal and hex values in the debugger now works for LLDB on Windows (Settings | Build, Execution, Deployment | Debugger | Data Views | C/C++ | Show integers as hex values and Display alongside the original value).

The Embedded GDB Server configuration can now reset the device at different stages:

• Before or after the download (i.e. flashing MCU ROM or writing to RAM).
• Always (both before and after).
• Or never.

Macros now work in Embedded GDB Server configuration fields.

Intention action suggestions are available via Alt+Enter (alternatively, click the bulb icon). In the suggestions list, now you can also see a preview of the result of the selected action. The preview is available for De Morgan's laws, invert if condition, merge if-else, merge nested if, Clang-Tidy, MISRA, Clazy, split into declaration and assignment, split into separate declarations, and a few other actions. Learn more.

The accuracy of the code analysis engine in CLion was increased by addressing a selection of issues, for example:

• Condition is always false/true checks now work correctly with types and narrowing conversion.
• CLion no longer marks fields as unused if they have non-trivial destructors.

CLion now displays a user-friendly wstring alias as a type hint for the std::basic_string<wchar_t> type.

CLion 2022.1 added parameter info for struct literals and initializer list, as well as made parameter hints more informative for the emplace, emplace_back/emplace_front, and make_unique/make_shared functions.

New formatter options for structured bindings were added to Spaces and Wrapping and Braces sections.

When creating a new C++ class, you can now specify the namespace where you’d like the new class to be located. You can write in any existing or nonexistent namespace (which will be created along with the new class), a nested namespace, or even an anonymous (unnamed) namespace if you enter a blank space in this field.

A new stub project generator for Rust projects will help you even if you don’t have the Rust plugin installed. It will help you install the plugin and navigate you through project creation.

Docker containers are one of the most popular and easiest ways to set up an environment and start working with it. Instead of using Remote toolchain for Docker in CLion, you can now use the native Docker toolchain. It avoids redundant source code synchronization, as the project folder is simply mounted to the container.

CLion also bundles the Docker plugin, which brings the Services tool window and many docker-specific actions to the IDE.

In some cases the environment in which the compiler runs is initialized via script. It can initialize compiler environmental variables, customize the PATH variable, and more.

Use Settings | Build, Execution, Deployment | Toolchains and select Add environment | From file in CLion to source such a script for the toolchain you are using.

A new System toolchain on Windows, similar to the same toolchain type on Linux and macOS, allows configuring CMake, compiler, and debugger executables without selecting a predefined environment (like MinGW, Cygwin, WSL, or Visual Studio). This might be used for the ARM toolchain or other embedded toolchains on Windows.

A new UI for setting the CMake generator was added to the CMake Profile settings page (Settings | Build, Execution, Deployment | CMake). Users can use the default value for the toolchain selected or set any generator from the predefined list.

When the UI field is used, CMake options on the same page are updated automatically and vice versa.

Heavily templated standard library types, or types with global and obvious namespace specifiers, can produce long entries in the variables view during debugging.

To improve the debugging experience, CLion now performs some additional processing to render types in the variables view in a more readable and friendlier way:

• Strip auxiliary namespaces, global and function scope specifiers, and standard library ABI version namespaces.
• Simplify standard library types by replacing standard library types with more readable aliases.
• You can also remove types completely from the presentation. This can help focus on the variable values.

A new View as Array… action is now available for any pointer variable and adds a watchpoint that renders a pointer value as array. The action is available in the context menu in the variables view. All you need to do is specify the size of the array.

As part of the ongoing debugger UI redesign, Evaluate expression is now integrated right in the Debug tool window. This makes it more discoverable and easy to use.

FreeRTOS thread view was expanded by adding objects and heap views:

• The Task table shows a list of tasks with status information.
• The Queue table shows currently active queues, semaphores, and mutexes.
• The Timer table lists the software timers.
• The Heap Usage table shows the current heap usage and memory block allocation.

CLion 2021.3 adds type hints for deduced types to increase code readability. The new hints help with types for auto variables, in structured bindings, and for lambda return types.

You can disable or enable specific type hints in Settings | Editor | Inlay Hints | C/C++ or right from the hint’s context menu.

If the type hint includes the template instantiation, the template arguments can be collapsed by simply clicking on the angle brackets. Also, Ctrl+Click allows you to navigate to the declaration of the type you clicked on.

When exploring the structure of the file in the Structure tool window (Alt+7) or in the Structure pop-up (Ctrl+F12), you can distinguish functions with the same names more easily, as CLion now shows qualified names for the member functions there.

LLVM tools in CLion were upgraded to v14.0.0. This improves the accuracy of the Clangd-based language engine and updates bundled Clang-Tidy and ClangFormat executables. For Clang-Tidy, this also means there are a few new checks you’ll be notified about when CLion is first launched after the update.

CLion’s data flow analysis now treats different calls differently, and so has become more accurate. This specifically means that:

• CLion analyzes each function for each call site separately.
• Parameters and return values for different call sites are analyzed separately.

Sometimes, you may have several commits that are ready to ship while others are still a work in progress. In such cases, you may want to push only the ones you are confident about. The new Push All up to Here action allows you to push commits up to the one you have selected in the Log tab of the Git tool window.