ReSharper C++ Features

Modifying the name of a class or macro can cause many problems when performed manually. That's why, when you invoke the Rename refactoring, ReSharper C++ takes care of all the necessary checks.

Either all modifications are performed automatically, or you're shown a list of conflicts that you can resolve manually to be sure that only necessary and appropriate changes are made.

Along with actual code symbols that you apply it to, the Rename refactoring can rename related files (both the source file and the header file) and related text in comments and documentation, as well as update usages in #include directives.

The Introduce Variable refactoring allows you to create a new local variable based on a selected expression, initialize it with the expression, and finally replace all occurrences of the expression in the code with references to the newly introduced variable.

Conversely, Inline Variable replaces all occurrences of a given variable or local constant with its initializer.

The Introduce Namespace Alias refactoring helps define shortcut names for deeply nested namespaces.

As soon as you invoke the refactoring, it suggests defining a scope that you want to introduce a namespace alias for.

The Introduce typedef refactoring allows you to quickly create a typedef for the selected data type and replace this data type and all its occurrences with the newly created typedef.

The Inline typedef refactoring does the inverse: it replaces an existing typedef with the actual data type.

In addition to refactorings, ReSharper C++ provides a set of context actions: local code transformations that usually help switch between alternative syntax options. Similar to quick-fixes, they are made available when you press Alt+Enter.

For example, you can quickly replace auto with explicit type or replace type with auto. Other context actions help merge nested if statements, generate missing case statements when switching over an enum, substitute a macro call or typedef etc.

ReSharper C++ recognizes *.c, *.cc, *.cxx, *.cpp, *.h, and *.hpp files in your solution, and highlights source code in these files according to a color scheme that you can modify at any time.

In addition, ReSharper C++ highlights various matching items when you place the caret at one item in a pair, be it matching delimiters, macros or a format specifier and argument in a printf function call.

When you put the caret on one of exit points from a function, loop or a switch statement (return, throw, break etc.), ReSharper C++ will now automatically highlight all other function or loop exits.

In C++ files, you can use code completion when writing your code, which sometimes suggests code generation options among other choices.

Code completion can even suggest symbols that are not yet included in the current file. When you select a symbol like this in the completion list, the corresponding #include directive is added automatically.

Quick Documentation pop-up displays documentation based on Doxygen comment blocks without forcing you to navigate to a symbol's definition: just hit Ctrl+Shift+F1 in the default keymap.

Even if there is no Doxygen documentation available for a symbol, Quick Documentation will show the symbol's signature.

ReSharper C++ can also display rich, syntax highlighted tooltips for C++ code elements. The tooltips will display function and variable types, as well as documentation.

C#-style XML documentation comments are also sometimes used for C++ symbols. ReSharper C++ correctly displays them in the Quick Documentation pop-up and in the quick info tooltip.

C++/CLI is a set of C++ language extensions by Microsoft for easy interoperability between managed and native code. With extensive support for both managed languages and C++, it is only natural for ReSharper to offer help with writing code in C++/CLI too.

Within C++/CLI code you can access all the same refactorings and intention actions as in pure C++ code. There is also an ability to navigate between C# and C++/CLI worlds.

For all symbols that have separate declarations and definitions, ReSharper C++ displays the Navigate to declaration/definition icon on the left (). Click the icon or press Ctrl+B to quickly switch between the declaration and the corresponding definition.

Other context-sensitive navigation options in ReSharper C++ include navigating from a selected symbol to its usages, base or derived symbols.

ReSharper C++ offers a set of context-insensitive navigation commands including Go to File, Go to Symbol, Go to File Member and Go to Everything.

All these commands support lowerCamelCase-based search and filtering by path. For example, entering fc movie in the Go to Everything pop-up returns the list of files and file members that have the string movie in their names and that belong to either FollowerC project or FollowerConstants namespace (both matching fc).

ReSharper C++ can give you an overview of the inheritance hierarchy that any given type is a part of. You can see both base types and inheritors of the selected type and navigate to any of them in one click.

In addition, ReSharper C++ comes with a hierarchy view that serves to visualize and help you figure out dependencies introduced via #include directives.

Use Find Usages to search for all references of a specific symbol in the C++ code of your solution.

As soon as search is completed, found occurrences are displayed in a tool window with grouping and filtering options, as well as a preview pane.

With ReSharper C++, you can view the structure of the current document using the File Structure window, which greatly simplifies navigation in large files.

As you switch to another editor tab, the tool window displays the structure of the corresponding file.

The To-do Explorer tool window lets you view, group and filter comments that contain one of the 3 default to-do patterns (Bug, Todo and Not Implemented) and any custom patterns that you might want to set up.

If you use the full ReSharper Ultimate license and you have a multilingual solution, the To-do Explorer will gather to-do items from all supported languages: C#, VB.NET, C++, JavaScript, XAML, HTML etc.

ReSharper C++ offers a quick way to generate missing members, overriding members, equality or relational operators, definitions based on existing declarations, hash and swap functions and constructors.

Just press Alt+Ins in the text editor to invoke the Generate menu and see all available options.

ReSharper C++ comes with 29 customizable templates. Some of them are regular code snippets, others are specifically used to wrap around code selections.

You can use and create file templates as well. Pressing Ctrl+Alt+Ins helps you quickly add a class to the project you're working on.

ReSharper C++ allows you to configure and apply code formatting rules that you prefer to use when working on a specific solution.

As an alternative to digging through all available code formatting options, you can select a block of code and configure only those that are applicable to this particular block.

To ensure a consistent code style across the entire team, you can save your formatting and naming preferences to a settings file and share it among your teammates.

ReSharper C++ also lets you define other parts of a team coding standard, such as the order of modifiers and the preferred value for pointer initializers. For example, you can specify 0, nullptr or NULL as the preferred initializer style, and ReSharper C++ will respect your choice when it generates new initializers for you.

Use ReSharper Options | Code Editing | C++ | Naming Style to select one of the predefined C++ naming styles: STL, Google, LLVM, CamelCase, or Microsoft.

ReSharper C++ comes with a unit test runner in Visual Studio that supports Google Test, Boost.Test, Catch and Doctest frameworks.

You can run and debug unit tests, as well as add tests to different sessions, right from the text editor, via the Alt+Enter contextual menu.

ReSharper C++ provides Unit Test Explorer and Unit Test Sessions tool windows to view, group, filter and run unit tests, as well as to create and manage unit test sessions.

A few code analysis checks are also available for UE-based code, especially targeting the missing or incorrectly set UE reflection macros:

• UCLASS declaration must publicly inherit UObject or class derived from it.
• Class marked by UCLASS must inherit only one class derived from UObject or UObject directly.
• UCLASS must be a class / USTRUCT must be a struct.
• UInterface must be empty.
• Missing UCLASS / UINTERFACE / USTRUCT macro call in UE class / interface / struct declaration.
• UE classes can not be declared inside another class.
• UPROPERTY / UFUNCTION macro call before declaration has no effect.
• Objects stored in non-uproperty member can be garbage collected at any time.

ReSharper C++ provides seamless integration with UnrealHeaderTool to help you catch more issues with Unreal Engine class metadata right in the editor. When working with an Unreal Engine project, ReSharper C++ automatically runs UnrealHeaderTool on the file you’re editing and displays any errors or warnings, just like with other inspections. Watch the UnrealHeaderTool integration in action.

ReSharper C++ identifies RPCs by Client, Server, or NetMulticast keywords in the UFUNCTION declaration statement. For such functions, ReSharper C++ is aware that an _Implementation function should be generated, as well as a _Validate function if WithValidation is set. It can generate both if both are missing, or only one if only one is missing.

When navigating to a definition, both functions (_Validate and _Implementation) will be suggested. Alternatively, these options are available in the Alt+Enter menu too, as “Related UE functions”.

When you use a symbol that’s not available in the current scope, ReSharper C++ highlights it in red and suggests adding the missing #include when possible. When the #include is missing from a header file, it will be inserted before the .generated.h, which should be the last one in the list of includes. The incorrectly placed #include is highlighted by the corresponding inspection.

Rename refactoring in Unreal Engine projects updates the corresponding .generated.h include directive and related files with the A, F, E, T, S, and U prefixes.

ReSharper C++ provides initial support for HLSL, the High-Level Shading Language. ReSharper C++ highlights HLSL code according to your default color scheme and displays inlay hints and tooltips for code elements with type information and documentation. You can also search for and quickly navigate to structs, functions, or parameters in your entire solution, referenced files, and standard libraries. And to perfect the HLSL experience, ReSharper C++ offers you smart code completion, auto-inserting matching delimiters, and more.

The full power of ReSharper's control-flow analysis comes to HLSL shader files, including warnings about unreachable code, uninitialized variables, redundant control flow jumps and conditional branches, and much more.