Visual Studio Code C/C++ extension: January 2019 Update

Tara Raj

[Updated on 11/4/2019] – Removed mentions of “Improved Member Function Completion” which is no longer supported based on user feedback.

The January 2019 update of the Visual Studio Code C++ extension is now available. This release includes many new features and bug fixes including documentation comments support, improved #include autocomplete performance, and many IntelliSense bug fixes. For a full list of this release’s improvements, check out our release notes on Github.

Documentation Comments

We added support for documentation comments for hover, completion, and signature help. You can now see documentation comments in tooltips. Let’s look at a simple box_sample.cpp program that defines a “Box” object with various dimensions.

The comment associated with a class or member function is shown in a tooltip when you hover over a place where the class or member function is used. For example, we can see the “Box object” comment in our main function where we create a Box instance:

Hovering over Box provides a tooltip with the comment for the Box member function

#include Autocomplete

This update improves #include autocomplete performance. It now shows individual folders instead of entire paths, thus fixing previous performance issues. When you autocomplete the #include recommendation. In the example below, we modified our original box_sample.cpp program where we place the Box object definition in a separate header file within the “Objects” folder. Now, when we go into our main box_sample.cpp file and see our #include auto-complete suggestion, we see the “Objects” folder auto-complete recommendation.

IntelliSense Bug Fixes

As per customer feedback, we’re continuing to work on bug fixes for IntelliSense. This release we’ve made some IntelliSense fixes including error squiggle improvements, process crash fixes, and increased stability.

You can see additional details of the issues we fixed in our release notes on GitHub.

Tell Us What You Think

Download the C/C++ extension for Visual Studio Code, give it a try, and let us know what you think. If you run into any issues, or have any suggestions, please report them on the Issues section of our GitHub repository. Join our Insiders program to get early builds of our extension.

Please also take our quick survey to help us shape this extension to meet your needs. We can be reached via the comments below or via email ( You can also find us on Twitter (@VisualC).