ReSharper C++ makes Visual Studio a better IDE for C++ developers, providing on-the-fly code analysis, quick-fixes, powerful search and navigation, smart code completion, refactorings, a variety of code generation options and other features to help increase your everyday productivity.
ReSharper C++ starts analyzing code as soon as you open your project in Visual Studio editor, and keeps reanalyzing files as you edit them, detecting errors and possible problems before you even compile.
40+ quick-fixes are available to instantly solve many of the detected code issues. Whenever you see a light bulb to the left of your code, press Alt+Enter to apply a suggested quick-fix.
For example, when an uninitialized variable is detected, you can immediately initialize it with
the default value. Other quick-fixes let you add missing
or remove redundant qualifiers in a particular statement, or in a larger scope such as a file or
even the entire solution.
Another benefit of quick-fixes is that you can start using classes, methods, variables, properties and fields before you declare them. When ReSharper C++ detects an undeclared symbol, it suggests quick-fixes to generate the corresponding symbol declaration based on its usage.
For any given scope such as a file, project or solution, you can tell ReSharper C++ to display all code issues that it detects in a dedicated tool window.
Find Code Issues works in the background, which lets you keep editing or navigating your code while ReSharper C++ runs its analysis and populates the Inspection Results tool window.
As soon as results are ready, you can group them by various criteria and search to find specific types of issues. You can also save and load reports of Find Code Issues results.
ReSharper C++ code inspections are also available via InspectCode, a free command line tool that allows running ReSharper inspections outside of Visual Studio.
To use InspectCode, please download and unzip the command line tools package and run InspectCode.exe with your solution file as a parameter. To learn more about using InspectCode, please read this article.
ReSharper C++ integrates seamlessly with Clang-Tidy, a powerful open-source code analysis tool based on the Clang compiler. The integration provides code checks and the quick-fixes.
ReSharper C++ provides several full-scale, mainstream refactorings such as Rename, Extract Method and Change Signature. In addition, it offers dozens of context actions, which are local code transformations available with a single shortcut.
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
The Extract Method refactoring helps you create a new method based on a selected code fragment. ReSharper analyses the selected block of code and detects variables that can be converted into method parameters or represent its return value.
The Change Signature refactoring allows you to apply one or more changes to the signature of a function. All usages, implementations, and overrides of the function will be updated accordingly.
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 Field refactoring helps create a new field based on a selected expression, assign the original expression to the field in its own initializer or in the constructor, and replace occurrences.
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
case statements when switching over an enum, substitute a macro
ReSharper C++ extends Visual Studio's ways of highlighting syntax and matching structural pieces of code, provides its own implementation of code completion, and helps visualize available documentation for any C++ symbol.
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
etc.), ReSharper C++ will now automatically highlight all other
function or loop
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,
#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.
C++/CLI support requires a ReSharper Ultimate subscription and the ReSharper product to be enabled. To learn more, see C++/CLI support comes to ReSharper C++.
With ReSharper C++, finding your way through the source code gets a lot easier. Just search for declarations, members, method calls, or members of an inheritance hierarchy with simple shortcuts.
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
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
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.
ReSharper C++ provides a variety of ways to generate boilerplate code. In addition to declaring and defining symbols based on their existing usages, it can create type members, surrounding code blocks, and any code snippets that you commonly need in your code base.
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.
With ReSharper C++, code formatter learns from your existing code, and your formatting and code style preferences can be shared with your team members.
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
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.
Often it's much easier to customize formatting settings by simply detecting them from the existing code. Use ReSharper | Edit | Detect formatting settings menu to have ReSharper detect code formatting settings. You'll get the tool window with the detected values, which can be reviewed and applied to the ReSharper settings on your machine. Or, you can save them to a team-shared settings layer so that other developers on your team will have the same code formatting configuration when opening the current solution.
A Visual Studio-integrated unit test runner supports Google Test, Boost.Test, Catch and Doctest frameworks.
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.
If you are making games based on Unreal Engine, benefit from the specific Unreal Engine 4 support in ReSharper C++.
ReSharper C++ accommodates UE4 naming convention across all its actions, including Introduce Variable and Rename refactorings, code generation for getters and setters, and many others. It also keeps an eye on the names you use across your code base. It highlights any inconsistencies with the UE4 naming convention by running Inconsistent UE4 naming inspections.
A few code analysis checks are also available for UE4-based code, especially targeting the missing or incorrectly set UE4 reflection macros:
To help you easily work with Unreal Engine reflection macros, ReSharper C++ offers completion for reflection specifiers inside reflection macros.
Built-in documentation for UE4 reflection specifiers is shown in the Quick Documentation popup (Ctrl+Q) when the caret is located on a specifier.
ReSharper C++ identifies
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 (
_Implementation) will be suggested. Alternatively, these options are available in the
Alt+Enter menu too, as “Related UE4 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
The “new” postfix template for
UCLASSes expands to a proper factory function call
(which will register the created object in the garbage collector).
Live templates with the corresponding names are available to help
you quickly generate
The Unreal Engine USF files are based on HLSL and contain the multi-platform shader code. These files usually include virtual file paths, and ReSharper C++ can work with them and support all the usual actions.
The SpatialOS Game Development Kit is an Unreal Engine 4 fork that helps you run and manage online games in the cloud. ReSharper C++ recognizes CrossServer, SpatialType, NonSpatialType, and other SpatialOS specifiers. Learn more.
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.
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